Magnetic field apparatus, systems and processes for enhanced handling preservation of edible substances

Abstract

The invention discloses an apparatus (1) configured so that can generate a range of time-varying electromagnetic fields (MF) and deploy such range of time-varying MF in an at least approximately uniform distribution surrounding edible substances (A), in particular during freezing thereof, such that exposure to said time-varying MF provides better interaction with substances, including preservation of several initial features of said edible substances (A), in particular during freezing thereof. The invention further relates to systems and methods presenting an apparatus of the type of the present invention and configured so that provide enhanced magnetic field interaction with edible substances (A), for enhanced preservation thereof, in particular during freezing.

Description

[0001]MAGNETIC FIELD APPARATUS, SYSTEMS AND PROCESSES FOR ENHANCED HANDLING PRESERVATION OF EDIBLE SUBSTANCES DESCRIPTION Field of the Invention The present invention refers to the field of apparatus configured so that provide electromagnetic fields interacting with edible substances, thereby enhancing preservation, in particular during freezing thereof. The present invention further refers to systems and methods including apparatus of the type of the present invention, operable in association with freezing apparatus for enhancing preservation of edible substances, in particular during freezing thereof. Background of the Invention Prior art includes several documents that address the problem of how to mitigate the negative effects that freezing can have on many relevant physical, chemical and even organoleptic properties of edible substances, in particular edible substances such as fruits, fish, seafood, meat, and other. Prior art includes references to the use of different types of electromagnetic fields (MF), and configurations of respective MF- generating signals and MF emission means to address this problem. Several documents in prior art propose a combination of static and variable magnetic fields, eventually combined with electric fields and / or with acoustic waves and other means of physical interaction with the substances to be preserved by freezing. Document US 410813, 1999 by Owada, N. et al., discloses a method for quick freezing that includes applying a unidirectional magnetic field, cooling with a cold wind having a velocity of 1 to 5 m / sec and superimposing a sound wave within the audio-frequency range onto to said cold wind. The apparatus therefore includes means for generating a static magnetic field and means for applying a dynamic magnetic field, whereby the latter include electromagnetic coil that is arranged outside and parallel to the freezing chamber walls, and such that provides an intensity of 1 Gs to 100 gs. In particular, the document refers that the use of permanent magnets for generating a static magnetic field reduces the power required by the electromagnetic coil that generates the fluctuating magnetic field, and also reduce power consumption. Moreover, the document refers the use of electric field generating means in the form of electrode plates operating at high voltage alternating current in the range of 100 to 1000 kV / m, that is adjusted so that fluctuates sinusoidally in time. Document JP 2001337036, 2001 by Owada, N. refers to an apparatus of the type of the present invention that includes means for exposing items inside a freezing chamber to an oscillating electric field, and to a static and to a variable magnetic field. The document refers that there can be electromagnetic coils for generating the variable magnetic field by passing an alternating current therethrough with a commercial frequency of 50 to 60 Hz. Moreover, there can be provided a plurality of electromagnetic coil units arranged successively and each extending along a cross-section such that laterally surround said items to be frozen. The electromagnetic coils comprise a coil base with a predetermined shape for forming a coil, an electromagnetic coil formed of a predetermined turns of highly conductive wire with an insulative coating, wound around the coil base and a caulking compound sealing the electromagnetic coil. The document refers the need to dispose the coils close to the objects so that a variable magnetic field can act thereupon uniformly and effectively. Further according to this document, the intensity of the variable magnetic field should be in the range of 1 to 1.000 Gauss, whereby an example is presented where the range is 5 to 7 Gauss. Document JP 2011-103775 A, 2011 by Daisuke., I. et al, also refers imparting a static magnetic field and a variable magnetic field in the X, Y and Z directions, whereby the magnetic fields can be independently changed and a rotational magnetic field can also be imparted by superposing the magnetic field. The document refers providing an electromagnetic field that is this case should present an intensity between 0,005 mT to 1 T. Moreover, the document refers the use of electromagnetic coils that in this case can be arranged parallel to each of six faces around a freezing chamber. Document US 2016 / 0302457 A1, 2013 by Jun, S. et al, refers to a method of supercooling perishable materials and preventing ice crystallization, whereby a pulsed electric field and oscillating magnetic field are applied to the products in phases while these are exposed to negative temperatures in the range of 0 to -20ºC. The method uses an apparatus configured so that can provide a pulsed electric field with a squared waveform with a frequency of at least 20 kHz, whereby in some embodiments this can present a duty cycle of about 0.2 to about 0.8, and more than one duty cycle can be provided during the preservation process. The oscillating magnetic field may have a strength of about 50 to 500 mT. Moreover, the apparatus includes a pulsed electric generator that can comprise an insulated-gate bipolar transistor, and further includes a magnetic field generator that can comprise four solenoid coils arranged at each of two mutually opposing sides of the container, for example two lateral walls thereof. The oscillatory magnetic field is regulated through input voltage, whereby this can range from 50 to 150 V at 1 Hz frequency. Moreover, the apparatus includes a pulsed electric field generator including electrodes operable in direct contact with the perishable material. The apparatus is part of a refrigerator or freezer. As described above, the prior art includes several solutions pointing to different types of electrical and magnetic fields to be used, different ranges of frequencies and intensities of the magnetic field and different configurations of magnetic field emitting means and of relative arrangements thereof in respect of a handling space, some of which result in complex apparatus take and complex constructions that us relatively much space volume. An effective interaction, including preservation, of perishable edible substances requires a specific range and spatial distribution of magnetic field in a handling space, more energy efficient and reliable interaction with substances, for example in terms of such preservation aspects such as cell structure and chemical bonds associated with organoleptic substances during freezing thereof. The provision of such specific range and spatial distribution thereof, requires certain magnetic field generation features, including signal configuration and amplification, and energy conversion and transmission arrangements, in particular in terms of the spatial distribution of magnetic fields such that can coalesce in a substantially uniform joint magnetic field. In this context, the present invention addresses the problem of best interacting with edible substances by means of exposing said edible substances to time-varying electromagnetic fields, and further by means of specific features of operating such electromagnetic fields, including substantially uniform spatial distribution of magnetic fields in the handling space. General Description of the Invention The goal of the present invention is to disclose a magnetic field apparatus configured so that provides an enhanced distribution of output signals in the form of electrical currents and conversion thereof into a spatial distribution of magnetic fields, thus enhancing the efficacy and reliability of interaction with edible substances exposed thereto. This goal is solved by the present invention by means of an apparatus according to claim 1, whereby preferred embodiments are disclosed in the dependent claims. In particular, the apparatus according to the invention is configured so that can provide different magnetic fields emitted at different spatial regions in respect of a reference handling volume, such as the volume confined the handling space or by magnetic field emission devices. Moreover, the apparatus is configured so that can provide a spatial distribution of different output signals and conversions thereof by magnetic emission devices into different magnetic fields such that these MFs can coalesce into a joint magnetic field interacting with the substances. The apparatus is configured for generation and distribution of a range of time-varying input signals to a plurality of magnetic field emission devices so that provides a joint magnetic field that at least mostly extends inside a handling space. In particular, the apparatus is configured such that a spatial distribution of different magnetic fields is provided by a plurality of magnetic field emission devices presenting a closed configuration, preferentially frame-like, and arranged successively in such distances apart that provides coalescence of respective magnetic fields into a joint magnetic field that presents a substantially uniform spatial distribution along most of the volume delimited by the apparatus, in particular the volume delimited by magnetic field emission means around substances. The apparatus is configured so that provides a spatial distribution of different magnetic fields along at least part of a first extension of the handling space, preferentially an at least approximately spatially symmetrical distribution of different magnetic fields in respect of a first extension of an array of magnetic field emission devices. The apparatus is configured so that provides a spatial distribution of different magnetic fields, in particular pulsed signal generated magnetic fields, whereby said different magnetic fields preferentially differ in the power voltage of respective output signals, preferentially do not differ on at least one pulsed shape, frequency and duty cycle of the magnetic field generating pulsed signal. The apparatus is configured so that provides a spatial distribution of different magnetic fields inside a handling space that is configured to accommodate or collect edible substances inside thereof, in particular during freezing of edible substances. The apparatus comprises an array of magnetic field emission devices arranged successively at distances apart and configured such that delimit a volume that is at least approximately centred in respect of the volume delimited by the handling space, and preferentially corresponds to at least 80%, preferentially at least 90% of the volume delimited by the handling space. The apparatus comprises an array of magnetic field emission devices including arranged successively along at least 90% of a first extension, for example longitudinal extension, of the handling space and such that each magnetic field emission device preferentially delimits a cross- section of at least 80%, preferentially at least 90% of the cross-section of the handling space. A related goal of the present invention is to disclose a magnetic field apparatus configured so that provides a substantially uniform spatial distribution of certain magnetic fields, thus enhancing the efficacy and reliability of interaction with edible substances exposed thereto. The aforementioned goal is solved according to the invention by means of a magnetic field apparatus configured so that can provide a spatial distribution of different magnetic fields based upon pulsed electrical currents so that can coalesce in a joint magnetic field that presents an at least approximately constant distribution of magnetic flux density at least in a central portion of the volume confined by the handling space. The apparatus comprises an array of magnetic field emission devices arranged at distances apart and operable with different pulsed electrical currents, so that respective magnetic fields can coalesce in a joint magnetic field presenting a reference magnetic flux density (Bref) within a range between 50 and 2.000 mT at a centre region of the volume delimited by the magnetic field emission devices. The apparatus comprises magnetic field emission means preferentially in the form of an array of magnetic field emission devices configured operable with pulsed electric currents, whereby some of the emission devices are operable with electric currents of different voltage. The apparatus comprises an array including a plurality of magnetic field emission devices preferentially in the form of individual frames each operably connected to power handling means providing output signals. The apparatus according to the invention is configured so that can provide remote, that is contactless, interaction with substances including so that can generate at each moment a range of time-varying MF emitted with different intensities and interacting with substances in an at least approximately equal intensity and direction inside the handling space. The apparatus includes signal generation means, such as a control device, configured so that can generate a range of input signals in the form of pulsed electrical currents, preferentially presenting an at least approximately rectangular wave format. The apparatus includes at least one, preferentially a plurality of power handling means, such as amplifier devices, configured so that can increase the voltage of pulsed electrical currents provided by the signal generation means and distribute resulting increased voltage output signals to a plurality of magnetic field emission devices, preferentially in a symmetry distribution in respect of centrally arranged magnetic field emission devices. The apparatus includes power handling means configured so that can provide at least two different output signals to different magnetic field emission devices, whereby said two output signals differ in the voltage. The apparatus can be devoid of energy transmission means operating in direct contact with the substances. The apparatus can be devoid of static magnetic field generation means, including permanent magnets. The apparatus can be devoid of electric field generating means, including plate electrodes. The apparatus can be devoid of sound wave generating means. The present invention further relates to a system configured for controlled magnetic field interaction with edible substances. The system is preferentially configured for preserving edible substances by freezing thereof inside a handling space. The system comprises a magnetic field apparatus and a freezing temperature apparatus. The system according to the invention is disclosed in claim 14. The system can include a magnetic field apparatus according to any of claims 1 to 13. The system can include a support for edible substances configured so that at least most of the outside surface of individual units of edible substances are in direct view of the array of magnetic field emission devices of the magnetic field apparatus. The system can include a support for edible substances configured so that encloses at least most, preferentially the entire volume occupied by edible substances. The system can include a support for edible substances provided in a structural material that does not interfere with the magnetic field provided by the magnetic field apparatus, preferentially a material selected from the list that includes polymer compositions, glass, acrylic, polycarbonate, inert minerals. The system can include a support for edible substances that includes at least one of a thermally insulating material with a thermal and an infrared reflecting material, preferentially arranged on the outside of a structural material. The system can include a support for edible substances configured so that can keep an interior atmosphere inside thereof with less than 15%, preferentially less than 10% oxygen, preferentially an inert atmosphere. The system can be configured so that can provide an interior atmosphere inside the handling space with less than 15% oxygen, preferentially less than 10% oxygen, preferentially an inert atmosphere. The system can be devoid of static magnetic field generation means, such as permanent magnets. The system can be devoid of electric field generating means, such as electrode plates. The system can be devoid of sound wave generating means. The freezing temperature apparatus can be configured so that can provide an air temperature inside the handling space between 0 and - 100ºC, preferentially of down to -60 ºC, more preferentially of down to -30ºC. The magnetic field apparatus and the freezing temperature apparatus can be operable with a respectively different power source, whereby said power sources differ in at least one of: nominal power voltage, type of electrical current, either alternate and direct current. The magnetic field apparatus and the freezing temperature apparatus can be operable with at least one of a respective different control and interface means, preferentially with at least one common input data, preferentially temperature inside the handling space. The system can comprise a freezing apparatus configured so that can provide a field of temperatures below 0ºC to the handling space. The present invention further relates to a process configured for controlled magnetic field interaction with edible substances. In particular, the invention discloses a process for preserving edible substances by freezing inside a handling space. This objective is solved by the present invention by means of a process according to claim 15. The process can include a step of providing a first apparatus according to any of claims 1 to 13, and a second apparatus configured for providing a freezing temperatures field inside the handling space. In particular, the process according to the invention includes a step of operating the first apparatus so that at least approximately simultaneously provides a plurality of different output signals, in the form of pulsed electrical currents, preferentially only, with different voltages, to a plurality of magnetic field emission devices, preferentially in a symmetrical distribution in respect of a first extension of a succession of the magnetic field emission devices, so that provide a joint magnetic field that presents a substantially uniform distribution of magnetic field at least along most part of the volume delimited by the magnetic field emission devices. The term “edible substances” in the context of the present disclosure as referring but not limited to substances that include perishable food products susceptible of preservation by means of freezing. Moreover, the term “edible substances”, as used in the context of the present invention, preferably encompasses both plant products and animal products that derive from cellular growth and therefore contain water. These products originate from the development and replication of cells and may arise through natural processes or cell cultivation in a laboratory setting. Plant products of cellular origin, resulting from the growth and development of plant cells, include, for example, fruits (apples, bananas, berries, oranges, etc.), vegetables (leafy greens, carrots, tomatoes, broccoli, etc.), grains (wheat, rice, oats, barley, etc.), nuts and seeds (almonds, sunflower seeds, flaxseeds, chia seeds, etc.), legumes (beans, lentils, peas, chickpeas, etc.). These plant-based products are composed of cells and undergo various cellular processes during growth and maturation, serving as examples of edible substances originating from plant cell development. Animal products of cellular origin, arising from the growth and development of animal cells, include, for example, meat (beef, chicken, pork, lamb, etc.), eggs (chicken eggs, quail eggs, duck eggs, etc.), dairy products (milk, cheese, yogurt, butter, etc.), seafood, such as fish (salmon, tuna, cod, etc.), shrimp, lobster, etc., and poultry products (turkey, duck, goose, etc.). These animal-based products consist of cells and tissues that develop within the bodies of animals or are obtained during the slaughter of animals, representing examples of edible substances originating from animal cell growth. The expression “handling space” in the context of the present disclosure should be understood as referring to, but not being limited to, a space that is suited for accommodating edible substances, preferentially delimited in at least most, preferentially the entire limit by spatial partition, including in the form of a chamber, room or any other enclosed space, preferentially a substantially confined space. The expression “a central portion of the volume confined by the handling space (H)” refers to a volume region that extends along a longitudinal extension of the handling space (H) and radially up to 30% of the extension from the centre to the walls that confine the handling space (H). The expression “low voltage” is to be understood as any voltage of up to 50 Volts. List of Figures The present invention shall be hereinafter explained in greater detail based upon some preferred embodiments of apparatuses and systems according to the invention and upon the attached drawings. The Figures schematically represent: Figure 1: main components of an apparatus (1); Figure 2: perspective diagram of apparatus (1) including an array of magnetic field emission devices (13) operatively associated with a handling space (H) that includes edible substances (A); Figure 3: a first embodiment of an array of magnetic field emission devices (13) in an apparatus (1); Figure 4: a second embodiment of an array of magnetic field emission devices (13) in an apparatus (1); Figure 5: front view of a first embodiment of an apparatus (1) operatively associated with a handling space (H); Figure 6: front view of a second embodiment of an apparatus (1) operatively associated with a handling space (H); Figure 7: top view of distribution of magnetic field intensity within a handling space (H); Figure 8: side cut view along a central vertical plane of distribution of magnetic field intensity within a handling space (H); Figure 9: front view of two embodiments of magnetic field emission devices (13) with quadratic format; Figure 10: front view of two embodiments of magnetic field emission devices (13) with non-quadratic format. Detailed description of preferred embodiments of the invention Figures 1 and 2 represent an apparatus (1) according to the invention for providing a spatial distribution of time-varying magnetic fields (MFs) to a handling space (H) such that effectively interacts with edible substances (A) therein. According to an aspect, the apparatus (1) includes electrical power converting means (11, 12, 13) functionally connected and configured so that can convert and distribute electrical currents in the form of different time-varying pulsed signals such that provide a spatial distribution of different MFs that can coalesce into a joint magnetic field that extends at least approximately uniformly at least around edible substances (A) and along at least most of the volume of the handling space (H)such that effectively interacts with the edible substances (A). In fact, a joint magnetic field, that is a spatially homogeneous distributions of MF, provides enhanced exposure of substances (A) inside a handling space (H) and interaction thereof with the MF, whereby such enhanced exposure and interaction advantageously provides better preservation of edible substances (A), in particular during freezing thereof, including features relevant for preserving relevant properties, such as cell structure, compositions, organic structures, bonds and water content of edible substances (A). As represented, the apparatus (1) comprises at least one control device (11) configured so that can generate input signals and operatively linked to power handling devices (12), for example a signal amplifier, configured so that can increase the voltage (Vin) of said input signals to obtain output signals with a higher voltage (Vout), whereby said output signals are provided to an array of magnetic field emission devices (13) configured so that carry said output signals by means of electrical current conducting coils configures so that provide a time-varying MF around edible substances (A) inside the handling space (H). The apparatus (1) can further comprise a power source (14) configured so that provide electrical current to the set of control device (11) and power handling device (12), whereby it is preferred when said power source (14) is configured so that can convert voltage from an external power source, such as power distribution grid, to low voltage. The apparatus (1) can further comprise an apparatus interface (15) which can be a user interface configured for receiving inputs from a user, and / or a retrievable memory readable by automatic means. According to one aspect, the apparatus (1) is configured so that can provide at least two different output signals for emitting respective MFs in a symmetric spatial distribution in respect of the handling space (H), preferentially with different output signals and respective MFs relative to a central region thereof, so that can coalesce into a joint operable MF extending along at least most part of the handling space (H). In particular, the apparatus (1) is configured so that can provide at least two different output signals to an at least approximately symmetrical distribution of at least two lateral magnetic field emission devices (132) arranged on each side relative to at least one central magnetic field emission device (131) arranged in a central portion of the array of magnetic field emission devices (13), such that a first output signal with a first voltage (Vout,1) is provided to at least one central magnetic field emission device (131) and a second output signal with a second voltage (Vout,2) is provided to at least two lateral magnetic field emission devices (132). In particular, the apparatus (1) is configured so that provides different MFs at different regions of the array of magnetic field emission devices (13), whereby said MFs preferentially differ only in the voltage (Vout) of respective output signals, that is do not present different frequencies, pulsed shapes or duty cycles. The apparatus (1) includes a control device (11) configured so that can provide input signals with a signal frequency of up to 50 kHz, preferentially between 0,1 Hz to 50 kHz, more preferentially between and 1 Hz and 40 kHz, particularly more preferentially between 10 Hz and 30 kHz. The apparatus (1) includes a control device (11) and power handling device (12) configured so that can provide input signals and conversion thereof into output signals, whereby the signal frequency of the output signals preferentially does not vary by more than 10%, more preferentially is preferentially at least approximately equal to the signal frequency of the input signals. The apparatus (1) can be configured so that the control device (11) can generate input signals automatically based upon operative data operatively linked with the control device (11) and / or provided by a user interface (15), whereby said operative data preferentially includes at least the type of edible substances (A). In particular, the control device (11) is configured so that is operable based upon input from interface means (15), whereby said interface means (15) include at least one of: - data entry means, preferentially operably linked to at least one of: user input means and sensors arranged in the handling space (H) and configured so that can recognize at least one of: air temperature, surface temperature of the edible substances (A), volume occupied by the edible substances (A) in the handling space (H); - data reading means, preferentially from a readable memory record accessible by the data reading means. According to one feature of the invention, the operative data also includes at least one further aspect associated with at least one of: average or indicative size of total volume occupied, of individual volume, of water content and of density of the edible substances (A) to be preserved. The control device (11) is configured so that be provided with electrical current and generate a pulsed signal therefrom presenting an input voltage (Vin). Moreover, the input signals are provided according to at least one of: - based upon a unidirectional signal, preferentially only based upon a unidirectional signal; - based upon a bidirectional signal, preferentially only based upon a bidirectional signal, The input signals are preferentially obtained from electrical current provided as a direct current. The input signals do not include neither a pulse-modulated nor a sine-shape signals. The control device (11) is configured so that provides at least one, preferentially at least two input signals to at least one power handling device (12), preferentially to at least two power handling devices (12). The power handling devices (12) are configured so that can generate output signals according to at least one of: - obtainable by means of amplifying an input voltage (Vin) to a respective output voltage (Vout); - presenting different values of output voltage (Vout1, Vout2), - presenting at least one at least approximately equal parameter from the list that includes: signal shape, frequency and duty cycle. The apparatus (1) is configured so that can automatically provide a range of MF according to input data by means of varying at least one of: voltage and current intensity, frequency and duty cycle, but preferentially not by means of varying any of: type of signal shape and type of signal modulation. According to another aspect, the apparatus (1) is configured so that is operable at low voltage, that is up to 50 V, including convert and deliver low voltage pulsed signals to a plurality of MF emission devices (13) operatively associated with the handling space. In particular, the apparatus (1) can include control device (11) and power handling devices (12) configured for handling electrical current, preferentially direct current, at low voltage, that is voltage of up to 50 V. The apparatus (1) can include control devices (11) configured so that can provide input signals within a range of input voltage (Vin) of up to 3 V, preferentially between 0,1 and 3 V, more preferentially between 0,2 and 2,8 V. The apparatus (1) can include power handling devices (12) operable with input signals provided by the control device (11) and functionally linked to a power source (14), and configured so that can increase the input voltage (Vin) of an input signal delivered by the control means (11) to an operating output voltage (Vout) corresponding to the maximum voltage provided by the power source (14), whereby the output voltage is of up to 50 V, preferentially between 3 and 49 V, more preferentially between 3,5 and 48 V, whereby the power handling devices (12) are functionally linked to a plurality of MF emission devices (13) so that can provide operating signals at a range of operating voltage (Vout) to MF emission devices (13). Figures 3 and 4 represent embodiments of the apparatus (1) with different distribution of output signals to an array of magnetic field emission devices (13) operatively associated with a handling space (H). The apparatus (1) includes magnetic field emission devices (13) arranged successively and each extending in a closed alignment around and at a distance from the edible substances (A) and operable so that respective MF coalesce together into a joint MF (JMF). It is preferred when the magnetic field emission devices (13) are configured so that extend at least to the vicinity of the interior walls of the handling space (H) and such that surround at least most part of the volume confined by the handling space (H) and around edible substances (A). The magnetic field emission devices (13) are configured as closed frames that delimit an interior surface corresponding to at least 75%, preferentially at least 80%, more preferentially at least 90%, and at most 98%, preferentially at most 97% of a respective cross-section of the handing space (H). The magnetic field emission devices (13) comprise a frame part and at least one, preferentially a plurality of power conducting cables collected inside the frame part and extending along the frames. The magnetic field emission devices (13) can be disposed successively spaced apart along a first direction of the handling space (H), for example longitudinal direction, preferentially extending along a vertical plane, and arranged centred in respect of a central longitudinal axis of the handling space (H). In a preferred embodiment, the magnetic field emission devices (13) are arranged inside the handling space (H) and operable from outside thereof, including functionally linked to control and power handling means (11, 12) as well as to a power source means (14) and interface means (15) arranged outside thereof. The apparatus (1) comprises a plurality of MF emission devices (13) configured as coils including electrical conductors carrying the pulsed electrical current with a voltage (Vout), in particular provided by the power handling devices (12). The apparatus (1) can comprise at least three, preferentially at least five MF emission devices (13), whereby the array of magnetic field emission devices (13) is configured so that extends along at least most part of a first extension, for example a longitudinal extension, thereby delimiting at least most of the volume confined by the handling space (H). The apparatus (1) comprises an array of magnetic field emission devices (13) configured according to at least one of: - arranged successively at preferentially equal distances (D) apart at least in a central region of the array of magnetic field emission devices (13), - each presenting an at least approximately equal closed format extending around at least most part of the handling space (H), - presenting at least one of at least approximately equal format and at least approximately equal dimensions; - presenting at least one of different number of electricity conductors and characteristic dimension of electricity conductors; - configured so that the magnetic field is mostly emitted inwards in respect of the convex configuration of the magnetic field emission devices (13). It is particularly advantageous when the magnetic field emission devices (13) present an aspect ratio between horizontal and vertical extensions between 0,5:1 and 4,0:1, preferentially between 0,8:1 and 3,0:1. Moreover, it is advantageous when the magnetic field emission devices (13) are arranged according to at least one of, preferentially at least two of: - at a distance (D) apart of at least 0,2 m and up to 1 m, preferentially between 0,4 and 0,8 m, in case the magnetic field emission devices (13) delimit a cross-sectional area of up to 4 m2, preferentially of up to 3 m2; - so that the MF emission devices (13) are arranged at a distance (D) apart of at least 1 m and up to 1,5 m, preferentially between 0,5 and 1,5 m, in case the magnetic field emission devices (13) delimit a cross-sectional area of up to 4 m2, preferentially of up to 3 m2; - so that the magnetic field emission devices (13) are arranged at a distance (D) apart of at least 0,5 m in case the magnetic field emission devices (13) delimit a cross-section of handling space (H) of at least 1 m2, and of at least 0,5 m in case the magnetic field emission devices (13) delimit a cross-section of handling space (H) of up to 4 m2and of at least 1 m in case the magnetic field emission devices (13) delimit a cross-section of handling space (H) bigger than 4 m2. According to one aspect, the apparatus (1) comprises an array of magnetic field emission devices (13), configured and spatially arranged so that two consecutive magnetic field emission devices (13) delimit surface areas, corresponding to cross-sections of the handling space (H) confined by the magnetic field emission devices (13), and are arranged at a distance (D) apart delimiting a volume of the handling space (H) confined by the magnetic field emission devices (13), such that corresponds to a surface area to volume ratio between 1:1 and 10:1 L-1. This could be the case of any two magnetic field emission devices (13) each presenting a frame with a format of 1x1 m2, jointly delimiting a cross-section of two times 1 m2, and at a distance (D) of 0,2 m apart. These spatial distributions of the array of magnetic field emission devices (13) advantageously provide for effective spatial distribution of the several MF and coalescence thereof in a substantially uniform joint MF (JMF). It is preferred when the apparatus (1) comprises magnetic field emission devices (13) configured and spatially arranged such that define a surface area to volume ratio between 1:1 and 4:1 L-1, more preferentially between 1:1 and 2:1 L-1, so that there is provided a more effective spatial distribution of MF and coalescence thereof in a JMF. This could be the case of any two magnetic field emission devices (13) each presenting a frame with a format of 3x3 m2, jointly delimiting a cross-section of two times 9 m2, and at a distance (D) of 1 m apart. According to another aspect, the apparatus (1) comprises a plurality of magnetic field emission devices (13) operable so that can provide such a spatial distribution of at least two, preferentially at least three MFs so that can coalesce into a JMF that presents a reference value of magnetic flux density (Bref) at a central portion of the volume confined by the handling space (H) and extends with an increasing gradient radially therefrom towards the magnetic field emission devices (13). The apparatus (1) is configured so that can provide JMF resulting from a plurality (n) of operating MF that can be emitted at a plurality (m) of emission regions extending at least in the proximity of a perimeter of the handling space according to at least one of: - the number (n) of operating MF is smaller than the number (m) of emission regions; - each location along any emission region is arranged at a regular distance from at least one neighbouring emission region; - each emission region presents an asymmetric MF distribution in the vicinity of each location and presents an at least approximately symmetric MF distribution at a region equidistant to any location thereof, so that the plurality of different MF coalesce into a JMF. The apparatus (1) comprises at least three MF emission devices (13), preferentially at least five magnetic field emission devices (13), preferentially in a regular spatial distribution, and is configured so that can provide at least one of: - at least one, preferentially a plurality of operating signals and respective operating MF emitted along at least two of at least three magnetic field emission devices (13) arranged at distances apart in respect of the handling space (H); - at least two, preferentially at least three different operating MFs emitted along at least five magnetic field emission devices, whereby said operating MF are automatically obtainable from at least two, preferentially at least three previously determined respective output signals. The apparatus (1) comprises control device (11) and power handling devices (12) functionally connected to a plurality of magnetic field emission devices (13) including a plurality of subsets (131, 132, …) of magnetic field emission devices (13) operable individually and in coordination manner and distributed successively and symmetrically along a longitudinal extension (L) of the array, whereby said longitudinal extension (L) preferentially corresponds to at least most part of the longitudinal extension of the handling space (H). Alternatively or complimentarily, the apparatus (1) comprises a first and at least a second subset (131, 132), preferentially at least a third subset (133) arranged successively and symmetrically sideways from a centre region of the array of magnetic field emission devices (13), whereby a first subset (131) preferentially includes at least one magnetic field emission device (131) and is arranged at least approximately in the centre region in respect of a longitudinal extension (L) of the magnetic field emission devices (13), whereby a second subset (132) preferentially includes at least two MF emission devices (132) each one thereof arranged on each side of a central first subset (131), whereby each of a second (132) and further (133, … ) subsets preferentially include at least two and up to five MF emission devices (13) on each side of a previous first subset (131, 132, …). The apparatus (1) comprises control device (11) and power handling devices (12) configured so that can provide a first subset (131) of magnetic field emission devices (13) with an operating signal according to at least one of: - with a respective first output voltage (Vout1) different from, preferentially bigger than, more preferentially between 20% and 200% bigger, than a second output voltage (Vout2) provided to a second subset of MF emission devices (132), - with at least one of signal frequency and duty cycle that do not vary by more than 50%, preferentially are at least approximately equal on all operating signals delivered to the plurality of magnetic field emission devices (13) associated with a handling space (H). Figures 5 and 6 represent front views of a handling space (H) of a system according to the invention for preserving edible substances (A) by means of exposure thereof to a pulsed magnetic field and freezing temperature field inside a handling space (H). In particular, the system comprises a first apparatus (1) configured so that provides a spatial distribution of surrounding pulsed electrical currents that provide a joint magnetic field that interacts with the edible substances (A), and a second apparatus (2) configured so that provides a freezing temperature field (FTF) inside the handling space (H) so that drives freezing of the substances (A). The first apparatus (1), that is the magnetic field apparatus, is configured so that provides a spatial distribution of different pulsed electrical currents such that respective magnetic fields coalesce in a joint magnetic field extending along at least the centre region confined by the magnetic field emission devices (13) and / or of the handling space (H). The second apparatus (2) is only indicated and not represented to keep legibility of the drawing. Likewise, only some components of the first apparatus (1) are represented. The first apparatus (1) can be configured so that provides a joint MF presenting a gradient of magnetic flux density (B) of no more than 50%, preferentially no more than 30% relative to a reference value of magnetic flux density (Bref) at a centre volume region thereof and extends radially along at least 50% within the volume confined by the magnetic field emission devices (13), whereby the reference value of magnetic flux density (Bref) is preferentially between 10 to 5.000 mT. As represented, the centre region of the volume delimited by the magnetic field emission devices (13) includes the intersection of central horizontal and vertical planes (I, II) of the array of MF emission devices (13). The second apparatus (2) can be configured so that provides an operating FTF presenting a temperature gradient and / or air velocity speed gradient of no more than 30% inside the handling space (H) relative to a centre volume region thereof that extends at least 50% radially within the volume confined by the MF emission devices (13), whereby the operating FTF is preferentially between 0 and -30 ºC, preferentially between -5 and -20 ºC. The second apparatus (2) can be configured so that includes a power source different from the power source of the MF arrangement (1) and at least one of: a common voltage control device and a common operating parameter. The second apparatus (2) can be configured so that provides an operating FTF with an air temperature between 0 ºC and -90 ºC inside the handling space (H), preferentially between 0ºC and -60ºC. It is preferred when the second apparatus (2) is configured so that provides an operating FTF with a temperature between -5 ºC and -30 ºC inside the freezing chamber (B), preferentially between -10ºC and -25 ºC, more preferentially between -15 ºC and -25ºC. The system can include a support (S) for edible substances (A) configured so that provides at least one of: - the edible substances (A) are arranged on the support (S) on mostly a horizontal distribution of at least most part of the total mass thereof, preferentially such that a maximum depth of edible substances (A) not on direct sight of the magnetic field emission devices is of less than 0,7 m, preferentially less than 0,50 m, more preferentially less than 0,30 m; - at least most of the outside surface of individual units or portions of edible substances (A) are rendered in direct view of any of, preferentially at least of one, more preferentially of at least two, of the magnetic field emission devices of the magnetic field apparatus. The system can include a support (S) that presents carrying capacity for a volume of edible substances (A) that corresponds to at least 20%, preferentially at least 30%, particularly preferentially at least 50% of the interior volume confined by at least one of the handling space (H) and array of magnetic field emission devices (13). The system can include a support (S) for edible substances (A) configured so that encloses at least most, preferentially the entire volume occupied by edible substances (A). The system can include a support (S) for edible substances (A) provided in a structural material that does not interfere with the magnetic field provided by the magnetic field apparatus, preferentially a material selected from the list that includes polymer compositions, glass, acrylic, polycarbonate, inert minerals. The system can include a support (S) for edible substances (A) configured so that can keep an interior atmosphere inside thereof with less than 15%, preferentially less than 10% oxygen, preferentially an inert atmosphere. The system can be configured so that can provide an interior atmosphere inside the handling space (H) with less than 15% oxygen, preferentially less than 10% oxygen, preferentially an inert atmosphere. The system can include at least one of a device and substance that provides oxygen depletion inside either one of the handling space (H) and the support (S) for edible substances (A). The present invention further refers to a method for controlled freezing of edible substances (A) inside a handling space (H) including the following steps: - operating a first apparatus (1) to provide a range of pulsed electrical currents and respective joint magnetic field inside the handling space (H), - operating a second apparatus (2) to provide a range of freezing temperatures inside the handling space (H), - providing edible substances (A) to the interior of the handling space (H) thereby exposing edible substances (A) to pulsed signal generated magnetic fields and freezing temperatures, - operating the first apparatus (1) to simultaneously provide at least a first and a second pulsed electrical currents to an array of magnetic field emission devices (13) such that respective magnetic fields coalesce in a joint magnetic field extending along at least the centre region of the handling space (H). The method can include a step of introducing a support (S) configured for collecting edible substances (A) and be collected inside the handling space (H), and preferentially a previous step of arranging the edible substances (A) in a previously determined arrangement on the support (S). The method can include providing at least a first and a second preferentially at least also third, pulsed electrical currents that differ in the voltage (Vout,1, Vout,2) to respectively different magnetic field emission devices (13), preferentially including sets of at least two magnetic field emission devices (13) such that respective magnetic fields coalesce in a joint magnetic field extending along at least the centre region of the handling space (H). It is preferred when the method includes simultaneously providing at least two electrical currents that differ in their voltage (Vout,1, Vout,2), preferentially not in at least one of: frequency, pulsed shape format and duty cycle. The provision of edible substances (A) advantageously includes placing edible substances (A) in a respective support (S) such that at least most of the outside surface of individual units or portions of edible substances (A) are rendered in direct view of any of, preferentially at least of one, more preferentially of at least two, of the magnetic field emission devices of the magnetic field apparatus (1). Figures 7 and 8 represent indicative distributions of magnetic flux density (B) in the spatial volume confined by the array of MF emission devices (13), whereby there are represented curves of equal magnetic flux density (B) and vectors of the magnetic field distribution along a horizontal plane that intercepts the central region of the handling space (H), including the intersection of central horizontal and vertical planes (I, II). According to a related aspect, the apparatus (1) is configured so that can provide a JMF that presents a substantially constant, or an at least approximately constant distribution of magnetic field interacting with edible substances (A), including distribution pattern of magnetic flux density and magnetic field direction, preferentially at least including a centre region in most of the volume delimited by the array of magnetic field emission devices (13). According to a related aspect, the JMF presents a reference magnetic flux density (Bref) at a central region of the volume delimited by the array of magnetic field emission devices (13), including at a central region of the cross-section of handling space (H), whereby the magnetic flux density varies radially from the central region towards the magnetic field emission devices (13). It is preferred when the magnetic flux density within at least 70%, preferentially at least 80% of the volume around the central region of the volume delimited by the array of MF emission devices (13) does not vary by more than 40%, preferentially by more than 20% in respect of said reference magnetic flux density (Bref). As can be seen in Figure 7, the magnetic field emission device (131) arranged at the centre presents a smaller intensity of magnetic flux density as compared to the one associated with the magnetic field emission devices (13) arranged laterally. The apparatus (1) is configured so that can provide a spatial distribution of different pulsed electrical currents to an array of magnetic field emission devices (13) so that the apparatus (1) provides a joint magnetic field presenting a spatial distribution of magnetic flux density including a variation of up to 100% in at least most of the volume confined by the magnetic field emission devices (13), in respect of a reference magnetic flux density (Bref) at a central region, whereby said spatial distribution of magnetic flux density is preferentially according to at least one of: - with a variation of at least 50%, preferentially at least 100% in neighbouring regions extending less than 20% of the distance (D) between successive magnetic field emission devices (13) to respective magnetic field emission devices (13), preferentially only in said neighbouring regions, and - with a variation of up to 100%, preferentially up to 50%, more preferentially up to 30% within the central volume delimited by the magnetic field emission devices (13), Moreover, the apparatus (1) is configured so that can provide a spatial distribution of different pulsed electrical currents to an array of magnetic field emission devices (13) so that the apparatus (1) provides a joint magnetic field presenting a variation of magnetic flux density according to at least one of: - the value of the magnetic flux density varies by no more than 50%, preferentially by no more than 30%, more preferentially by no more than 20% at least in a central portion that corresponds to 50% of the total volume delimited by the MF emission devices (13); - the value of the magnetic flux density varies by no more than 20%, preferentially by no more than 10%, more preferentially by no more than 8% at least in a centred volume region that corresponds to 25% of the total volume delimited by the magnetic field emission devices (13). According to one aspect, the apparatus (1) comprises an array of magnetic field emission devices (13) arranged at distances (D) apart and operable with different pulsed electrical currents, so that respective magnetic fields can coalesce in a joint magnetic field presenting a previously determined range of magnetic flux density in at least most of the volume confined by the magnetic field emission devices (13), whereby said variation of magnetic flux density is preferentially according to at least one of: - a distribution of magnetic flux density (B) within a range between 1 and 10.000 mT, preferentially within a range between 10 and 5.000 mT inside at least most part of the volume confined by the magnetic field emission devices (13); - a reference magnetic flux density (Bref) within a range between 50 and 2.000 mT, preferentially between 100 and 1.000 mT, more preferentially between 150 and 700 mT at a geometric centre region of the volume delimited by the magnetic field emission devices (13). Figure 8 represents a top view of the magnetic field vectors in a handling space (H) operatively associated with an apparatus (1), including front view of representative arrows size and direction of the JMF generated by magnetic field emission devices (13). As can be seen in Figure 8, the apparatus (1) provides a JMF characterized by a substantially constant distribution of the magnetic flux density and magnetic field direction along at least most part of the vertical plane, including the central region, delimited by magnetic field emission devices (13). According to one aspect, the apparatus (1) comprises an array of magnetic field emission devices (13) arranged at distances (D) apart and operable so that respective magnetic fields can coalesce in a joint magnetic field presenting a prevailing magnetic field direction in at least most of the volume confined by the magnetic field emission devices (13), whereby said prevailing magnetic field direction is preferentially according to at least one of: - that does not vary by more than 5%, preferentially is at least approximately equal, at least in a centred volume region that corresponds to at least 25% delimited by the magnetic field emission devices (13); - that does not vary by more than 10º, at least in a centred volume region that corresponds to at least 50% of the total volume delimited by the magnetic field emission devices (13); - that does not vary by more than 10º, preferentially is at least approximately equal, along an at least approximately central horizontal plane; - that is at least approximately constant along the height direction of the handling space (H), at least along an at least approximately central vertical plane; - that extends in a direction that is at least approximately horizontal plane and directed towards one of the top open ends of the array of magnetic field emission devices (13); - that extends in a direction that is at least partially, preferentially mostly opposite to the direction of the Earth’s magnetic field. Figures 9 and 10 represent front views of preferred embodiments of magnetic field emission devices (13) in an apparatus (1) according to the invention. A first set of embodiments presents a quadratic shape, whereby the corner regions do not configure orthogonal corners. In fact, the corner regions are configured such that define angles of less than 90º, preferentially of less than 60º, either in a linear or rounded shape. This advantageously provides less physical strain on the power conducting wires collected in the magnetic field emission devices (13). Moreover, as depicted in both embodiments represented in Figure 9, the vertical sides of magnetic field emission devices (13) do not vary by more than three times, preferentially do not vary by more than two times in respect of horizontal sides such that a reference value of magnetic flux density (Bref) can be provided at a central region of the magnetic field emission devices (13). In the case of a second set of embodiments represented in Figure 10, the magnetic field emission devices (13) present a hexagonal shape. This can advantageously enhance the distribution of magnetic flux density (B) in the region occupied by edible substances (A) inside a handling space (H). The MF apparatus (1) comprises a plurality of magnetic field emission devices (13) configured according to at least one of: - present at least one of an at least approximately rectangular format or other parallelogram format including pentagonal format, hexagonal format and octagonal format; - present only adjacent sides at non orthogonal angles; - present at least mutually opposing sides with a form of segment of segment of circle or segment of oval; - present a circular format or an oval format. It is preferred when the MF apparatus (1) comprises a plurality of magnetic field emission devices (13) configured according to at least one of: - includes a frame element that can confine at least two electricity conductors inside a respective frame; - a resistance up to 10 Ohms, preferentially between 2 Ohms and 10 Ohms, more preferentially between 2 Ohms and 8 Ohms (tbc); - an electrical current between 0,1 A to 80 A.

Claims

CLAIMS 1. Apparatus for providing a magnetic field for an interaction with edible substances (A), whereby the apparatus (1) is configured to provide a spatial distribution of magnetic fields by magnetic field emission devices (13) around a handling space (H), whereby the handling space (H) is configured and suitable to accommodate at least one edible substance (A), characterized in that the apparatus (1) is configured to provide a spatial distribution of different magnetic fields (MF) that coalesce into a joint magnetic field (JMF) that is configured and suitable to interact with an edible substance (A) accommodated in the handling space (H).

2. Apparatus according to claim 1, characterized in that the apparatus (1) is configured to provide different output signals to the different magnetic field emission devices (13) arranged at different locations surrounding, preferably most of, the handling space (H), whereby the apparatus (1) comprises at least one control device (11) configured to provide the magnetic field emission devices (13) with different output signals such that the magnetic field emission devices (13) provide different magnetic fields (MF), whereby it is preferentially provided that the output signals provided to the magnetic field emission devices (13) differ at least in their voltages (Vout) or only differ in their voltages (Vout).

3. Apparatus according to claims 1 or 2, characterized in that the apparatus (1) is configured to provide at least two different output signals to at least three magnetic field emission devices (13), preferentially at least three output signals to at least five magnetic field emission devices (13), whereby the voltageof output signals delivered to the array of magnetic field emission devices (13) increases from at least one first magnetic field emission device (131) arranged centrally to second magnetic field emission device (132) arranged laterally on both sides in respect of the at least one first magnetic field emission device (131).

4. Apparatus according to claim 3, characterized in that the apparatus (1) is configured to provide a first output signal presenting a first output voltage (Vout,1) to the at least one first magnetic field emission device (131) arranged at a central region of the array of MF emission devices (13) and to provide a second output signal presenting a second output voltage (Vout,2) to the at least two second magnetic field emission devices (132) arranged laterally on each side of the at least one first magnetic field emission device (131), whereby it is preferentially provided that the second output voltage (Vout,2) is bigger than the first output voltage (Vout,1), more preferentially provided that a second output voltage (Vout,2) presents a value that is 1,2 to 2,5 times, most preferentially 1,4 to 2,2 times bigger than the value of a first output voltage (Vout,1).

5. Apparatus according to any of claims 1 to 4, characterized in that the apparatus (1) comprises a control device (11) operably connected to at least one power handling device (12), preferentially to a plurality of power handling devices (12), with the at least one power handling device (12) being operably connected to one or a plurality of the respective magnetic field emission devices (13), whereby the control device (11) generates an input signal with an input voltage (Vin) and the power handling device (12) increases to an output voltage (Vout), and / or in that the apparatus (1) comprises a control device (1) operable to provide a range of input signals to at least one power handling device (12), including at least two input signals that present different voltages (Vin), preferentially including at least two input signals that only differ in voltages (Vin), whereby it ispreferentially provided that each input signal is set according to at least one of: - set as pulsed signal, preferentially devoid of pulse-width modulation; - presenting an at least approximately rectangular-shape wave, preferentially square-shape wave; - devoid of polarity reversal.

6. Apparatus according to any of claims 1 to 5, characterized in that the apparatus (1) comprises a control device (11) operably connected to at least one power handling device (12) and operable to provide at least two, preferentially at least three, different output signals to different magnetic field emission devices (13), whereby it is preferentially provided that the different output signals include pulsed electrical currents of different voltages, preferentially with an at least approximately equal of at least one of: pulse shape, frequency, and duty cycle.

7. Apparatus according to any of claims 1 to 6, characterized in that the apparatus (1) is configured to provide a spatial distribution of different magnetic fields (MF) that are based upon pulsed electrical currents that coalesce into the joint magnetic field (JMF), with the joint magnetic field (JMF) presenting an, at least predominantly and / or approximately, constant distribution of magnetic flux density at least in a central portion of the volume confined by the handling space (H).

8. Apparatus according to any of claims 1 to 7, characterized in that the apparatus (1) is configured to provide a spatial distribution of different pulsed electrical currents to an array of magnetic field emission devices (13) to provide a joint magnetic field (JMF) presenting a spatial distribution variation of up to 100% in at least most of the volume confined by the magnetic field emission devices (13).

9. Apparatus according to any of claims 1 to 8, characterized in that the apparatus (1) comprises an array of magnetic field emission devices (13) arranged at distances (D) apart and operable with different pulsed electrical currents, so that the respective magnetic fields (MF) coalesce in a joint magnetic field (JMF) presenting a reference magnetic flux density (Bref) within a range between 50 and 2.000 mT at a centre region of the volume delimited by the magnetic field emission devices (13).

10. Apparatus according to any of claims 1 to 9, characterized in that the apparatus (1) comprises an array of magnetic field emission devices (13) arranged at distances (D) apart and operable so that respective magnetic fields (MF) coalesce in a joint magnetic field (JMF) presenting a prevailing magnetic field direction in at least most of the volume confined by the magnetic field emission devices (13).

11. Apparatus according to any of claims 1 to 10, characterized in that the apparatus (1) comprises an array of magnetic field emission devices (13), arranged at distances (D) apart so that two consecutive magnetic field emission devices (13) delimit operating surface areas of a cross-section of the handling space (H) confined by the magnetic field emission devices (13), and are arranged at a distance (D) apart delimiting a volume of the handling space (H) confined by the magnetic field emission devices (13), such that a surface area to volume ratio of 1:1 to 10:1 L-1, preferentially of 1:1 to 4:1 L-1, more preferentially of 1:1 to 2:1 L-1is obtained.

12. Apparatus according to any of claims 1 to 11, characterized in that the apparatus (1) comprises an array of magnetic field emission devices (13) that present an aspect ratio between horizontal and vertical extensions between 0,5:1 and 4,0:1, preferentially between 0,8:1 and 3,0:1.

13. Apparatus according to any of claims 1 to 12, characterized in that the apparatus (1) comprises an array of magnetic field emission devices (13) configured so that at least three, preferentially at least five, more preferentially at least seven, magnetic field emission devices (13) are arranged successively at intermediate distances (D) which are in the range of 25 cm to 200 cm, preferentially in the range of 50 cm to 150 cm.

14. System for controlled magnetic field interaction with edible substances (A), the system comprising: – a magnetic field apparatus (1) configured to provide a spatial distribution of magnetic fields (MF) by magnetic field emission devices (13) around a handling space (H), whereby the handling space (H) is configured and suitable to accommodate at least one edible substance (A); – a freezing apparatus (2) configured to provide a freezing temperature field (FTF) inside the handling space (H) and that is configured and suitable to drive freezing of the at least one edible substance (A) accommodated in the handling space (H), characterized in that the magnetic field apparatus (1) is configured to provide a spatial distribution of different magnetic fields (MF), preferably a spatial distribution of different pulsed electrical currents to different magnetic field emission devices (13) that provide a spatial distribution of magnetic fields (MF), such that the magnetic fields (MF) coalesce in a joint magnetic field (JMF), preferably in a joint magnetic field (JMF) that extends along at least the centre region of the handling space (H).

15. Process for controlled magnetic field interaction with edible substances (A), the process including at least the following steps: - providing a magnetic field apparatus (1) configured to provide, preferably at discrete moments, a range of magnetic fields (MF), preferably a range of pulsed electrical currents and respective magnetic fields (MF), around a handling space (H); - providing a freezing apparatus (2) configured to provide a range of freezing temperatures inside the handling space (H),- providing at least one edible substance (A), preferably on a support (S) configured to collect edible substances (A), at a location that corresponds to the handling space (H) during operation of the magnetic field apparatus (1) and of the freezing apparatus (2), - operating the magnetic field apparatus (1) and the freezing apparatus (2) to expose the at least one edible substance (A) to magnetic fields (MF), preferably to pulsed signal generated magnetic fields (MF), provided by the magnetic field apparatus (1) and to a freezing temperature provided by the freezing apparatus (2), characterized in that the magnetic field apparatus (1) provides a spatial distribution of different magnetic fields (MF) that coalesce into a joint magnetic field (JMF) that interacts with the at least one edible substance (A) accommodated in the handling space (H), preferably simultaneously provides different pulsed electrical currents to different magnetic field emission devices (13) such that respective magnetic fields (MF) coalesce in a joint magnetic field (JMF) extending along at least the centre region of the handling space (H).

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