APPARATUS AND METHOD FOR ROASTING COFFEE BEANS.

Abstract

The invention relates to an apparatus (1) and a method for a more convenient roasting of coffee beans. The apparatus (1), provided for roasting coffee beans, comprises: a chamber (10) in which coffee beans for roasting can be received, wherein the chamber (10) comprises an opening (13), and a device for roasting the coffee beans received in the chamber (10).The chamber (10) can be moved about an axis of movement to different positions, where these positions comprise a roasting position, preferably a receiving position, and a discharging position, where in the roasting position the device is arranged to roast the coffee beans received in the chamber (10), in the receiving position, if present, the chamber (10) is arranged to receive, through the opening (13), coffee beans for subsequent roasting in the roasting position, and in the discharging position, the chamber (10) is arranged so that the coffee beans can be discharged through the opening (13) from the chamber (10).

Description

APPARATUS AND METHOD FOR ROASTING COFFEE BEANS 1. FIELD OF THE INVENTION 5 The present invention relates to an apparatus for roasting coffee beans and to a method for roasting coffee beans. 2. TECHNICAL BACKGROUND 10 Roasting coffee beans transforms unroasted coffee beans into roasted coffee beans. Unroasted coffee beans are typically green and / or dried, and roasted coffee beans contribute significantly to the flavor of the coffee beverage, which is prepared from the roasted (ground) coffee beans. Coffee bean roasting can be done on a large scale, but also on a small scale. 15 In small-scale coffee bean roasting, the business providing the service to the customer (a store, a coffee shop, etc.) or a customer, e.g., the consumer of the coffee beverage, roasts the coffee beans.Roasting coffee beans at home is very interesting, as it allows consumers to experiment with different flavor profiles and ensure a particularly fresh roast, for example, as a hobby. Roasting coffee beans involves several handling steps. For instance, the beans must be filled before roasting, and then handled after the roasting process is complete. This can require handling various parts of an appliance, which isn't very convenient for the user. The parts may be hot, so there is also a risk of injury to the user during handling. Furthermore, roasting coffee beans may require certain precautions before the process can begin. This may also involve handling various parts of the appliance, making coffee bean roasting inconvenient and, due to the potentially hot parts involved, relatively unsafe. Therefore, an object of the present invention is to provide an apparatus and a method that overcome the aforementioned drawbacks. In particular, an object of the present invention is to provide an apparatus that makes the process of roasting coffee beans more convenient and safer. These and other objects, which become evident upon reading the following description, are addressed in the independent claims. The dependent claims relate to additional preferred embodiments of the invention. 3. BRIEF DESCRIPTION OF THE INVENTION According to the invention, an apparatus for roasting coffee beans is provided. The apparatus comprises: a chamber in which coffee beans for roasting can be received, the chamber comprising an opening, and a device for roasting the coffee beans received in the chamber. The chamber is movable about an axis of movement in (at least two, preferably at least three) different positions, these positions comprising (or being, i.e., consisting of) a roasting position, preferably a bean receiving position, and a bean discharge position.In the roasting position, the device is arranged to roast the coffee beans received in the chamber; in the optional bean receiving position, the chamber is arranged to receive, through the opening, coffee beans for subsequent roasting in the roasting position; in the bean discharge position, the chamber is arranged so that the coffee beans can be discharged through the opening from the chamber. Therefore, the device facilitates the camera's movement only along its axis of motion to reach each of the roasting, optional bean receiving, and bean discharge (i.e., ejection) positions. In other words, with a single, specific type of movement (such as linear or rotary, i.e., tilting) of the camera relative to the axis of motion, the camera can be moved to the desired position. During this movement, the camera moves relative to a component of the device, such as the lower part, which is provided for positioning and / or mounting the device. Therefore, the device improves the overall coffee roasting process, which includes, in this order, at least coffee bean reception (i.e., filling), coffee bean roasting, and coffee bean discharge, particularly with regard to convenience (faster and more direct access to the roasted coffee beans, etc.) and safety (fewer injuries due to contact with potentially hot parts of the device, etc.). This is especially true because the user is not required to perform multiple actions to move the chamber to the desired position. Furthermore, the chamber's mobility relative to a fixed axis reduces the likelihood of accidental loss of coffee beans or parts of the device. The different positions are specific positions, that is, positions defined by the apparatus. The apparatus can be configured to stop or brake the camera when the camera is in each of these different positions. For example, the apparatus may include one or more stopping elements to stop the camera in one or more of these positions. Each of the one or more stopping elements may be arranged to allow movement of the camera about the axis of movement in a first direction and to prevent movement of the camera about the axis of movement in a second direction, which is opposite to the first. The apparatus can be configured to stop the camera when the camera is in each of the roasting and / or grain discharge positions. Therefore, the apparatus may include a respective stopping element for each of the roasting and / or grain discharge positions. The apparatus may comprise one or more braking elements for stopping the camera in one or more of its various positions. Each of the one or more braking elements may be arranged to stop movement of the camera about the axis of movement in a specific direction when a force to move the camera (e.g., a handling force) is below a defined threshold value. When this force to move the camera is at or above the defined threshold value, the one or more braking elements may be arranged to permit movement of the camera in that specific direction. The apparatus may be configured to stop the camera when it is in the grain receiving position. Therefore, the apparatus may comprise a braking element for the grain receiving position. The camera can be rotated to different positions. Therefore, it can be easily moved to each position simply by rotating it around its axis of rotation, which is a rotating axis of movement—that is, by tilting the camera. This axis of movement can be extended horizontally. Specifically, this horizontally extended axis of movement allows the aperture to be tilted up and down. Thus, gravity can be effectively used to move the coffee beans relative to the camera. The camera can be adapted to be manually moved to each of the different positions. For example, the device includes a user interface, such as a handle and / or knob, for manually moving the camera to each of the different positions. Therefore, a user of the device can easily and intuitively move the camera to each of the different positions, for example, by simply turning the user interface clockwise and counterclockwise. Alternatively, the camera can be adapted to move automatically to each of the different positions. For example, the device includes a control unit and a drive unit for automatically moving the camera to the different positions, where the drive unit is functionally connected to the control unit.The control unit can then control the drive unit, for example, based on the toasting process, to automatically move the camera to each of the different positions. This improves the ease of operation of the device, as less or even no manual intervention is required from the user to move the camera. The apparatus may include a connecting piece, such as a lid and / or a coffee husk collector, for covering and preferably fitting with the opening in the roasting position to close and preferably seal the chamber for roasting the coffee beans. The connecting piece, in particular, ensures that during the roasting process in the roasting position, no air (such as hot air) and / or any coffee roasting byproducts (such as smoke, dirt, coffee husks, etc.) can escape from the chamber through the opening, particularly to the outside of the apparatus. The connecting piece may be designed so that such air and / or byproducts can escape from the chamber only through the connecting piece. The connecting piece, therefore, makes the apparatus safer. The connecting piece may be designed to correspond to or complement the opening in the side wall of the chamber that defines the opening. The opening can be arranged so that, when the chamber moves to the toasting position, the opening moves toward the connecting piece to engage, preferably in a sealing engagement, with the connecting piece in the toasting position. Therefore, only the movement of the chamber about the axis of motion effects the engagement, in particular the force required for the sealing engagement, of the opening with the connecting piece. In other words, no moving parts other than the moving chamber are required to bring the opening into the (sealing) engagement. When the chamber is in the toasting position, the connecting piece and the opening can be relatively movable relative to each other so that the opening and the connecting piece can be coupled together, preferably in a sealing coupling. Therefore, the apparatus can comprise, in addition to the camera's axis of movement, one or more additional axes of movement, preferably only one additional axis of movement, for relative movement between the connecting piece and the opening. For example, in the toasting position (in which the chamber therefore does not move with respect to the (first) axis of movement), the connecting piece can remain fixed, while the opening moves relative to the connecting piece to achieve the (sealing) coupling. In another example, in the toasting position, the opening can remain fixed, while the connecting piece moves relative to the opening to achieve the (sealing) coupling.Therefore, the opening can be closed very tightly in the roasting position, so that in particular it effectively prevents (hot) air and / or other by-products of coffee roasting (smoke, coffee husks, dirt, etc.) from moving through the opening out of the chamber. The chamber may comprise a side wall, where the distal end of the side wall defines the opening. An easily accessible opening is provided for entering the chamber. The distal end of the side wall may be inclined so that the opening extends obliquely with respect to the side wall. The inclined distal end of the side wall thus results in an overhanging upper portion of the side wall, e.g., forming a ramp. The obliquely extending opening can be easily positioned for sealing with the joining piece, particularly without requiring any relative movement between the opening and the joining piece in the toasting position. In the bean discharge position, the chamber can be arranged to discharge the coffee beans by gravity through the opening. Therefore, no additional means, or at least less energy, are required to discharge the coffee beans from the chamber. Thus, in the bean discharge position, the opening is preferably oriented (i.e., tilted, in particular tilted more than in the bean reception position) downwards. In the bean receiving position, the chamber can be arranged to receive coffee beans by gravity through the opening. Therefore, a user can easily fill the chamber with coffee beans from above the opening. This provides a very convenient way to fill the chamber with coffee beans. Thus, in the bean receiving position, the opening is preferably oriented (i.e., tilted) upwards. In the bean discharge position, the device can be adapted to provide an airflow to discharge the coffee beans from the chamber through the opening. This airflow allows the coffee beans to be discharged by gravity. The airflow generated by the device can be the same airflow used to roast the coffee beans in the roasting position. However, it can also be a different airflow, such as a specific airflow for discharging the coffee beans. Therefore, the airflow specifically for discharging the coffee beans can be weaker (i.e., have less energy) than the airflow used for roasting / agitating the coffee beans. The device may further comprise a housing (i.e., an outer casing) for at least the camera and preferably also the device itself. The housing specifically provides protection to prevent the user from touching potentially hot parts of the camera. Furthermore, the housing may conceal the movable camera from the user, thereby improving the device's design. The housing may comprise a grain receiving opening and a grain discharge opening, wherein the grain receiving opening and the grain discharge opening are arranged such that the chamber opening can be selectively aligned with either the grain receiving opening or the grain discharge opening. The housing thus facilitates the filling of the chamber with coffee beans and the discharge of coffee beans from the chamber through the housing, i.e., through the grain receiving opening and the discharge opening. Therefore, the housing can make the chamber accessible to the user of the apparatus only through the grain receiving opening and the grain discharge opening. As such, an improved design and enhanced safety of the device are achieved. The device can be configured to generate an airflow to agitate the coffee beans placed in the chamber. In other words, the device can be configured to create a fluidized bed within the chamber, where the coffee beans are agitated. In particular, agitating the coffee beans in the roasting chamber is advantageous for roasting them. The appliance may be a household appliance (i.e., a domestic device). Therefore, the appliance may be designed for use in a home kitchen, e.g., placed alongside and / or integrated with a coffee grinder and / or a beverage maker. For example, the appliance is a home solution that specifically allows for fresh and / or customized roasting of coffee beans. With this appliance, a home coffee roasting solution can therefore be provided. According to a further aspect of the invention, a method for roasting coffee beans in a chamber is provided. The chamber is provided to receive coffee beans for roasting, wherein the chamber comprises an opening. The method comprises the steps of: with respect to an axis of movement, placing the chamber in a bean receiving position; receiving coffee beans into the chamber through the opening at the bean receiving position of the chamber; moving the chamber to a roasting position with respect to the axis of movement; roasting the coffee beans received in the chamber at the roasting position; moving the chamber to a bean discharge position with respect to the axis of movement; and discharging the coffee beans from the chamber through the opening at the bean discharge position. The advantages and description regarding the device apply analogously to the method. The method may further include the step of, to place the camera in the grain receiving position, moving the camera with respect to the axis of movement to the grain receiving position. 4. BRIEF DESCRIPTION OF THE FIGURES The invention is then described illustratively with reference to the accompanying figures, in which Figure 1 shows a schematic perspective view of an apparatus according to a first preferred embodiment of the invention, wherein the chamber of the apparatus is in the toasting position; Figure 2 shows a schematic perspective view of the apparatus according to the first preferred embodiment, wherein the camera is in the grain receiving position; Figure 3 shows a schematic perspective view of the apparatus according to the first preferred embodiment, wherein the camera is in the grain discharge position; Figure 4 shows a schematic perspective view of an apparatus according to a second preferred embodiment of the invention, wherein the chamber of the apparatus is in the toasting position; Figure 5 shows a schematic perspective view of the apparatus according to the second preferred embodiment in the toasting position, wherein the chamber opening is moved relative to the fixed joining piece to decouple the opening from the joining piece; Figure 6 shows a schematic perspective view of the apparatus according to the second preferred modality, wherein the camera is in the grain receiving position; Figure 7 shows a schematic perspective view of the apparatus according to the second preferred embodiment, wherein the camera is in the grain discharge position; Figure 8 shows a schematic perspective view of an apparatus according to a third preferred embodiment of the invention, wherein the chamber of the apparatus is in the toasting position; Figure 9 shows a schematic perspective view of the apparatus according to the third preferred embodiment in the toasting position, wherein the joining piece is moved relative to the fixed chamber opening to uncouple the opening of the joining piece; Figure 10 shows a schematic perspective view of the apparatus according to the third preferred modality, wherein the camera is in the grain receiving position; Figure 11 shows a schematic perspective view of the apparatus according to the third preferred modality, wherein the camera is in the grain discharge position; Figure 12 shows a schematic perspective view of an apparatus according to a fourth preferred embodiment of the invention, wherein the apparatus comprises an optional housing; Figure 13 shows a schematic perspective view of the apparatus according to the fourth mode, where the camera is in the grain receiving position; and Figure 14 shows a schematic perspective view of the apparatus according to the fourth mode, where a user interface is operated, optionally provided as a knob. 5. DESCRIPTION OF PREFERRED MODALITIES Figures 1 to 3 illustrate a first preferred embodiment of Apparatus 1. Apparatus 1 is adapted for roasting coffee beans. More specifically, Apparatus 1 is adapted to transform unroasted coffee beans, for example, in the form of green and / or dried coffee beans, into roasted coffee beans. More specifically, roasting the coffee beans transforms the chemical and physical properties of the unroasted coffee beans to produce the characteristic flavor of roasted coffee beans and, consequently, of the coffee beverage prepared from these roasted coffee beans. That is, roasting the coffee beans produces the specific flavor of roasted coffee beans, for example, through a Maillard reaction and other chemical reactions. Therefore, the process of roasting the coffee beans precedes other processes required to prepare the coffee beverage, such as coffee grinding and / or coffee brewing, e.g., coffee extraction. Apparatus 1 can be adapted to collect the husks from the roasted coffee beans. That is, unroasted coffee beans typically have a skin (green and / or dry), particularly when first picked from the coffee tree. The husk can also be called the coffee bean hull. During the roasting process, this skin separates from the coffee beans and thus remains as husks. Specifically, the high temperature of the roasting process allows the husks to detach easily from the coffee beans without requiring additional work.Since it is desired that these husks from the roasted coffee beans not remain with the roasted coffee beans, because, for example, the consumer does not want to have the husks inside the grinder and / or beverage preparation machine and, therefore, inside the coffee beverage, the husks can be collected by apparatus 1 so that the husks do not remain in the final product, which are the roasted coffee beans. Apparatus 1 can be adapted for small-scale coffee roasting (i.e., on-site coffee roasting) and is therefore not a large-scale (industrial) roasting machine or apparatus. Apparatus 1 is thus particularly suitable for use in business-to-business (e.g., a coffee shop) or business-to-consumer and / or consumer settings, where the customer is typically the consumer of the coffee beverage. Apparatus 1 is therefore preferably a domestic appliance. As such, Apparatus 1 can be used in a home or kitchen, particularly on a table, e.g., next to, or functionally integrated with, a coffee grinder and / or a beverage machine. Apparatus 1 is therefore preferably of a size and weight that allows it to be carried by a single person, particularly without the need for a specific transport mechanism. The apparatus 1 comprises a chamber 10 into which coffee beans for roasting can be received. The chamber 10 is optionally detachable. The chamber 10 can be designed as a tank or container. The chamber 10 can be enclosed by a side wall 12, which can extend from a bottom portion 11 that also encloses the chamber 10. Therefore, when the coffee beans are received in the chamber 10, they are preferably received at the bottom portion 11 and are at least partially in contact with the side wall 12. The chamber 10 is designed so that, in particular, heat and / or hot air can come into contact with the (unroasted) coffee beans to roast them; for example, the bottom portion 11 and / or the side wall 12 are made of a material with relatively high thermal conductivity, e.g., a material comprising or consisting of metal.The bottom portion 11 and / or the side wall 12 may include one or more openings (i.e., vents), facilitating the flow of heat and / or air (for heating and / or cooling) into chamber 10 for the corresponding processing of the coffee beans. The side wall 12 may include vents for ventilating the interior of chamber 10. The vents may be evenly distributed along the side wall 12. The chamber 10 comprises an opening 13 for accessing it. Through this opening 13, coffee beans can be removed from the chamber. The opening 13 also facilitates the insertion of coffee beans into the chamber; that is, the chamber can be filled with coffee beans through this opening. The opening 13 preferably defines an access direction for removing coffee beans from the chamber and also for inserting coffee beans into the chamber. The opening 13 is not limited to a specific shape. The opening 13 is preferably defined by the side wall 12, e.g., by the distal end of the side wall 12. Therefore, the opening 13 can be arranged opposite the bottom portion 11. For example, the opening 13 can extend in a plane. The opening 13 can have a shape that corresponds to the lower part 11 and / or it can have a round shape (circular, elliptical, etc.).However, it can also have different shapes, e.g., a polygonal, rectangular, or square shape. Camera 10 is not limited to a specific shape. For example, camera 10 can be symmetrical or asymmetrical. As shown in the figures, camera 10 can be at least partially in the shape of a cylinder. The apparatus 1 may further comprise a housing 20 for accommodating at least the camera 10. The housing 20 may at least partially cover the camera 10. The housing 20 may cover the camera 10 when viewed from a top view of the apparatus 1 and / or one or more side views of the apparatus 1. The housing 20 may, in specific parts of the housing 20, such as the front face and / or one or more side faces, not cover the camera 10, so as to provide access to the camera 10. For example, the housing 20 has a base (bottom) 21 and a top 22, wherein the camera 10 may be arranged so that the opening 13 is located in the top 22 of the housing 20. The base 21 may be adapted to position and / or mount the apparatus 1 so that the apparatus 1 can be operated correctly (operating position). Thus, the base 21 can be adapted, for example, to be placed on a table or similar.The housing 20 may comprise a side wall 23, extending from the bottom 21 to the top 22 and preferably partially surrounding the chamber 10. The housing 20 is not limited to a specific shape. The housing 20 may have a non-symmetrical or symmetrical shape. For example, the housing 20 is substantially in the shape of a box, a cube, a cylinder, or a (truncated) cone. The apparatus 1 further comprises a device (not shown; e.g., comprising a fan) for generating an airflow within chamber 10. This airflow can be used to roast the coffee beans, which are received in chamber 10. For example, the apparatus 1 or the device may further comprise a heater (heating unit) that heats (fresh) air, wherein the device conveys this heated air into chamber 10. The (heated) airflow thus comes into contact with the coffee beans and roasts them. The airflow can also be such that the coffee beans within chamber 10 are agitated or moved, in particular to enhance the roasting of the coffee beans. Additionally or alternatively, the airflow generated by the device can be used to cool the (already roasted) coffee beans received in chamber 10.For example, to cool coffee beans, the airflow might not have been heated (by the heater), but simply carried fresh air, like ambient air. Therefore, to provide the cooling airflow, the device could simply remain in an activated state, while the heater is switched off. The apparatus 1 may also include a control unit. The control unit may be adapted to control the roasting of the coffee beans accordingly, e.g., according to a pre-configured program, e.g., including a predefined roasting and / or temperature profile. The control unit may be functionally connected to the device and / or heater so that the device and / or heater roasts and / or cools the coffee beans received by chamber 10 accordingly. The device 1 may comprise a user interface 30, which is preferably functionally connected to the control unit. The user interface 30 enables the user of the device 1 to control the device 1 accordingly, in particular for roasting the coffee beans and / or for completing the roasting process. The user interface 30 may comprise one or more (e.g., only four) control elements 31, e.g., in the form of one or more buttons or other touch-sensitive elements (touchscreen, etc.), for controlling the device 1. For example, the one or more control elements 31 comprise an element for starting the roasting process and an element for stopping or completing the roasting process. The control elements 31 may further comprise a control element for switching the device 1 on (and off) (e.g., an on / off control element).The toasting process can also be stopped automatically by the control unit, e.g., after a predetermined time period has elapsed. The user interface 30 is preferably located on a front face of the device 1, i.e., a user-facing side of the device 1. The device, the control unit, and / or the user interface 30 can be provided within or in the housing 20. As shown in Figures 1 to 3, the user interface 30 can be located in the housing 20, in particular on a front face of the housing 30. The user interface 30 can be positioned laterally with respect to the chamber 10. The device 1 may further comprise a power input, e.g., in the form of a plug. The plug provides power to the parts of the device 1 that require electrical energy (voltage and / or current), in particular the device, the control unit, and / or the user interface 30. The plug may be located on the rear side of the device 1 and / or in the housing 20. The apparatus 1 may further comprise a hull collector 50 for collecting the hulls of the coffee beans roasted by chamber 10. The hull collector 50 may comprise a compartment in which the hulls are collected, thereby preventing their return to chamber 10. For example, the hull collector 50 may comprise an inlet that permits only a unidirectional flow of hulls, so that the hull collector 50 collects the hulls; the inlet may therefore permit a flow of hulls 50 into the compartment but prevent a flow of hulls out of the compartment 51, particularly into chamber 10. To provide particularly suitable collection of the hulls by the hull collector 50, the hull collector 50 and the device (air current generator) may be arranged accordingly.For example, the device may be arranged so that the airflow generated by the device propels the coffee bean hulls toward the hull collector 50, so that (in the roasting position, see below) the hulls are collected by the hull collector 50. The hull collector 50 may be designed to selectively open the hull collector 50 or, if present, the compartment for disposal or other use of the collected hulls. The hull collector 50 may be detachable so that it can be removed from the apparatus 1, e.g., for easy disposal of the hulls. For example, the hull collector 50 is detachably mounted to the housing 20 (e.g., on the top or rear side of the housing 20), e.g., by means of a correspondingly designed gasket.The shell collector 50 can form the upper part of the apparatus 1 and / or is arranged in the upper part 22 of the housing 20. As shown in Figures 1 to 3, the chamber 10, and therefore the opening 13 and preferably also the side wall 12, can be moved about a (specific) axis of movement. By moving the chamber 10 about this axis, it can be moved to at least three different positions, which are shown in Figures 1 to 3, respectively. More specifically, in this preferred embodiment, these different positions comprise, or consist of, a roasting position (Figure 1), a bean receiving position (Figure 2), and a bean unloading position (Figure 3). In other embodiments, the chamber 10 can also be moved to only two different positions: the roasting position and the bean unloading position. In such an alternative embodiment, the coffee beans can be received in the roasting position.For example, the apparatus 1 may comprise a lid or cover which, when the apparatus 1 is in the roasting position, can selectively cover (close) or uncover (open) the opening 10 so that, in an uncovered state of the opening 10, the beans can be received, through the opening 10, into the chamber 10. Roasting then takes place when the opening 10 is covered by the lid. Unless otherwise stated, the following explanations regarding the preferred embodiment comprising the chamber 10, which according to this embodiment can be moved to at least three different positions, apply analogously to the embodiment comprising only two different positions. The axis of motion is preferably a fixed axis of motion relative to the apparatus 1. That is, the axis of motion is preferably provided such that the axis of motion itself cannot move relative to specific parts of the apparatus 1, such as the housing 20 and / or the base (i.e., the bottom) 21. As shown in Figures 1 to 3, the axis of motion may extend horizontally. The axis of motion may extend perpendicular to at least part of the housing 20, such as perpendicular to a side portion of the housing 20, which is, for example, the side wall 23 of the housing 20. The side portion of the housing 20 may extend vertically, such as in a vertical plane. In other embodiments, the axis of motion may also extend vertically. The movable camera 10 allows it to be moved to at least three different positions with just one type of movement (e.g., rotary or linear) about the axis of movement. As shown in Figures 1 to 3, this movement can be rotary. Consequently, the axis of movement can be a rotary axis. Therefore, camera 10 can preferably be moved rotaryly to at least three different positions. By rotating camera 10 about the (rotational) axis of movement, the user of device 1 can thus move camera 10 to each of the at least three different positions. In other embodiments, camera 10 can also be moved linearly to the at least three different positions. To provide the axis of movement, the apparatus 1 may comprise one or more connecting elements (joints) 60. The one or more connecting elements 60 thus provide the degree of freedom, i.e., the type of movement, provided by the axis of movement. Therefore, the one or more connecting elements 60 can perform (only) a rotary type of movement. The one or more connecting elements 60 can connect the chamber 10, such as an (outer side of) the side wall 12 of the chamber 10, to a fixed part of the apparatus 1, such as the housing 20, so that by means of the one or more connecting elements 60, the chamber 10 is movably positioned, in particular with respect to said fixed part of the apparatus 1, to move to at least three different positions. The one or more connecting elements 60 can be connected only to a section of the chamber 10, e.g., the side wall 12 and / or the bottom part 11.The one or more linking elements 60 can also be connected to more than one section of the chamber 10, such as to two diametrically opposed sections of the chamber 10, e.g., of the side wall 12. The at least three different positions—namely, the roasting position, the grain receiving position, and the grain discharge position—are three specific positions, i.e., positions defined by the apparatus 1. The apparatus 1 can be configured to stop or brake the chamber when the chamber is in each of the at least three different positions. For example, the apparatus 1 can comprise one or more stopping elements, preferably arranged in or integrally formed with the housing 20, to stop the chamber 10 in one or more of the at least three different positions. For example, one of the stopping elements can be arranged such that when the chamber 10 is in the roasting position (see Figure 1), the chamber 10 is stopped and can move about the axis of movement only in one direction, e.g., to the grain receiving position and the grain discharge position.This stopping element, which defines the roasting position, can be arranged in the upper part 22 of the housing 20, e.g., integrally formed with the upper part 22. Alternatively, one of the stopping elements can be arranged such that, when the chamber 10 is in the grain discharge position (see Figure 3), the chamber 10 is stopped and can move about the axis of movement only in one direction, e.g., towards the grain receiving position and the roasting position. This stopping element, which defines the grain discharge position, can be arranged in the lower part 21 of the housing 20, e.g., integrally formed with the lower part 21. The apparatus 1 may comprise one or more braking elements for braking the chamber 10 in one or more of at least three different positions. Each of the one or more braking elements may be arranged to stop movement of the chamber 10 about the axis of movement in a specific direction when a force to move the chamber 10 (e.g., a handling force) is below a defined threshold value. When this force to move the chamber 10 is at or above the defined threshold value, the one or more braking elements may be arranged to permit movement of the chamber in that specific direction. The apparatus 1 may be configured to brake the chamber 10 when the chamber 10 is in the grain receiving position. Therefore, the apparatus 1 may comprise, for the grain receiving position, one or more braking elements.More specifically, when chamber 10 moves, with a specific force below the threshold value, from the roasting or grain discharge position to the grain reception position, one or more braking elements can brake chamber 10 so that it stops in the grain reception position. When this force to move chamber 10 is at or above the defined threshold value, the one or more braking elements therefore allow the movement of chamber 10 from the grain reception position, e.g., to the roasting or grain discharge position. The one or more braking elements can be arranged in housing 20 and / or can be provided with one or more connecting elements 60. Figure 1 illustrates the roasting position of chamber 10. In the roasting position, the device (for roasting the coffee beans) is set to roast the coffee beans received in chamber 10. In the roasting position, the device therefore provides the (hot) airflow to roast and preferably agitate the coffee beans received in chamber 10. Therefore, in the roasting position, the opening 13 of chamber 10 is preferably closed, in particular redirecting the flow towards the top of apparatus 1, such as towards the connecting piece 70 and / or the husk collector 50, and / or preventing the (hot) air and / or other by-products of coffee roasting (smoke, dirt, coffee husks, etc.) from escaping from chamber 10 to the outside of apparatus 1.If present, the hull collector 50 can, in the roasting position, collect coffee hulls and preferably also other by-products resulting from the roasting of the coffee beans. In the roasting position, the chamber 10, for example, a (symmetrical) axis of the chamber 10, can be extended in the vertical direction, and / or the access direction of the opening 13 can be extended in the vertical direction. The apparatus 1 may comprise a connecting piece 70 for covering and preferably engaging with the opening 13 in the roasting position. Thus, the connecting piece 70 closes and preferably seals the chamber 10 for roasting the coffee beans in the roasting position. Preferably, the connecting piece 70 is disposed on the upper part 22 of the housing 20. As shown in Figures 1 to 3, the connecting piece 70 may be integrally formed with the housing 20. To seal the chamber 10, the connecting piece 70 may comprise a sealing element. In the roasting position, the distal end of the side wall 12, which defines the opening 13, may engage with and / or be pressed against the connecting piece 70, such as the sealing element. The joining piece 70 may comprise the shell collector 50, and / or the upper part 22 may comprise both the shell collector 50 and the joining piece 70, for example, integrally formed with each other.The joining piece 70 can simultaneously be the stopping element, which defines the toasting position. Figure 2 illustrates chamber 10 in the bean receiving position. In this position, chamber 10 is arranged to receive coffee beans through opening 13 for subsequent roasting in the roasting position (see Figure 1). Therefore, the bean receiving position, as illustrated in Figure 2, is preferably the starting position for the coffee roasting process. In the bean receiving position, the coffee bean roasting device is therefore preferably deactivated. In the bean receiving position, chamber 10 is preferably arranged to receive the coffee beans by gravity through opening 13. Therefore, chamber 10 can simply be filled with coffee beans through opening 13 using gravity. Thus, the user of apparatus 1 can fill chamber 10 with coffee beans from above opening 13.As shown in Figure 2, the opening 13 is preferably oriented upwards in the grain receiving position. Therefore, in the grain receiving position, the opening 13 is easily accessible to the user of the apparatus. In the grain receiving position, the chamber 10, such as a (symmetrical) axis of the chamber 10, is preferably oblique with respect to the vertical direction. In other words, the access direction defined by the opening 13 is preferably oblique with respect to the vertical. The angle between this axis (respectively, the access direction) and the vertical direction is preferably less than 90°, for example, approximately 45°. In the grain receiving position, the opening 13 may be partially covered, i.e., half-open. For example, parts of the apparatus 1, such as the housing 20 (e.g., of the upper part 22), partially cover the opening 13 in the grain receiving position.When viewed along a specific direction, such as in a top view of apparatus 1, i.e., along the vertical direction, the opening 13 may be partially covered, e.g., by the housing 20, preferably the upper part 22. Generally, the opening 13 can be arranged so that when the chamber 10 is moved (for example, from the grain receiving position shown in Figure 2) to the roasting position (as shown in Figure 1), the opening 13 moves towards the joining piece 70 to engage the coupling with the joining piece 70 in the roasting position, which is preferably a sealing coupling. Such an arrangement of the opening 13 can be observed in Figures 2 and 3. As shown in Figure 2, this arrangement of the opening 13 can be provided by tilting the distal end of the side wall 12. Therefore, due to the tilted distal end of the side wall 12, the opening 13 extends obliquely with respect to the side wall 12. That is, the tilt of the side wall 12 defines a plane, which is not perpendicular but oblique with respect to the side wall 12, and which comprises the opening 13. Therefore, when moving the camera 10 (p.e.g., from the grain receiving position to the roasting position, the opening 13 moves toward the connecting piece 70 and then, because the opening 13 extends obliquely, engages (seals) with the connecting piece 70 in the roasting position. The opening 13, i.e., the inclined distal end of the side wall 12, is then preferably engaged and / or pressed against the connecting piece 70 to effect the (seals) engagement. The connecting piece 70 can extend, at least partially, correspondingly or complementarily to the opening 13 and the distal end of the side wall 12, respectively. As shown in Figures 2 and 3, the connecting piece 70 can therefore be at least partially oblique. Figure 3 illustrates chamber 10 in the bean discharge position. In the bean discharge position, chamber 10 is arranged so that coffee beans can be discharged from chamber 10 through opening 13. As shown in Figure 3, chamber 10 can be arranged, in the bean discharge position, to discharge coffee beans by gravity from chamber 10 through opening 13. Therefore, in the bean discharge position, opening 13 is preferably arranged to face downwards. In the bean discharge position, a container or other receiving element, such as one for receiving roasted coffee beans for further processing, can be arranged at least partially below opening 13. In this way, the (roasted) coffee beans can be easily discharged from chamber 10 through opening 13 into the container / receiving element using gravity.In the grain discharge position, chamber 10, as well as its (symmetrical) axis, can extend obliquely with respect to the vertical direction. In other words, the access direction defined by the opening 13 can extend obliquely to the vertical direction. The angle between chamber 10 (e.g., its (symmetrical) axis) and, respectively, the access direction of the opening 13 and the vertical direction, can be greater than 90°, for example, in the range of 120° to 160°, such as 135°. Therefore, in the grain discharge position, the opening 13 is fully open. Consequently, the coffee grains discharged from chamber 10 can be discharged through the entire extension of the opening 13. In the bean discharge position, the coffee beans can be discharged from chamber 10 using only gravity, so no additional means or energy are required to remove them. However, in the bean discharge position, the device (for roasting the coffee beans) can also be activated to provide an airflow to discharge the coffee beans from chamber 10 through opening 13. This airflow, generated by the device, allows for the discharge of coffee beans using gravity. The device can provide the airflow for discharging the coffee beans in such a way that it is weaker than the airflow used to roast the beans received in the chamber. In other words, the airflow generated by the device for discharging the coffee beans can be a gentle airflow.Since this air stream is only used to discharge the coffee beans, the device can be adapted to prevent the heating of this air stream in the bean discharge position. In the preferred embodiment shown in Figures 1 to 3, the chamber 10 is adapted to be manually moved to each of at least three different positions: the roasting position, the grain receiving position, and the grain discharge position. As shown in Figures 1 to 3, the apparatus 1 may comprise a user interface 32 and / or the user interface 30, such as one or more of the control elements 31, for manually moving the chamber 10 to each of the at least three different positions. The user interface 32 may be a handle (lever). The handle may be designed to be grasped by a user's hand. The handle may be longitudinally extendable. In the roasting position of the chamber 10, as shown in Figure 1, the user interface 32, preferably shaped like the handle, may be extended (longitudinally) in the vertical direction.In the grain receiving position of chamber 10, as shown in Figure 2, the user interface 32 / handle can be extended obliquely with respect to the vertical direction. In the grain discharge position of chamber 10, as shown in Figure 3, the user interface 32 / handle can be extended obliquely to the vertical direction or substantially in the horizontal direction. By rotating the user interface 32 (with respect to defined angles), the camera 10 can therefore be moved to at least three different positions. The user interface 32 can be arranged in the housing 20, such as on a side of the housing 20, for example, on the side wall 23. The user interface 32 can be directly connected to the camera 10 for manual movement of the camera 10, e.g., by means of one or more linking elements 60. However, the chamber 10 is not limited to being manually moved to each of the at least three different positions. Additionally, or alternatively, the chamber 10 can also be adapted to move automatically to each of the at least three different positions. For this automatic movement of the chamber 10, an (electric) drive unit (not shown) can be provided. The drive unit can be functionally connected to the control unit and the movable chamber 10. Therefore, the control unit can control the drive unit, e.g., based on the roasting process, such as based on certain parameters of the roasting process (e.g., completion of the roasting process and / or the presence of (dry) coffee beans in the chamber 10), to automatically move the chamber 10 to the desired of the at least three different positions. While camera 10 moves to each of at least three different positions, the coffee bean roasting device can remain stationary or move with camera 10. For example, the device can be housed in housing 20 to remain fixed during the movement of camera 10. If the device is arranged to move with camera 10, the device and camera 10 can be housed together in a common housing piece. The device can be arranged (or housed) in or below the bottom portion 11 of camera 10. By providing the coffee bean roasting device so that it moves with camera 10, the common center of gravity of the device and camera 10 can be offset with respect to the axis of movement.This displaced arrangement of the common center of gravity, i.e., the torsional movement thus effected, can be used to more easily move the chamber 10 to one or more of the different positions, such as the roasting position and / or the grain discharge position, and / or to cause the chamber 10 to remain in one or more of the different positions, such as the roasting position and / or the grain discharge position. Figures 4 to 7 show a second preferred mode of the apparatus 1. The second embodiment of the apparatus 1 corresponds substantially to the first preferred embodiment, unless otherwise specified below. Therefore, the description with respect to the first embodiment of the apparatus 1 applies analogously to the second preferred embodiment of the apparatus 1. The same reference symbols correspond to the same features. The second preferred embodiment of the apparatus 1 differs from the first preferred embodiment of the apparatus 1 in particular in that the connecting piece 70 and the opening 13 are relatively movable relative to each other when the chamber 10 is in the toasting position. This is illustrated in Figure 5. By moving the connecting piece 70 and the opening 13 relative to each other in the toasting position, the opening 13 and the connecting piece 70 can engage with each other, preferably in a sealing manner.As mentioned above, this coupling of opening 13 with joining piece 70 is advantageous in the roasting position of chamber 10, as it prevents (hot) air and / or other by-products of coffee roasting (dirt, smoke, coffee husks, etc.) from escaping from chamber 10 through opening 13. As shown in Figure 5, relative movement between the connecting piece 70 and the opening 13 can be provided by the opening 13 being movable relative to the fixed connecting piece 70 when the chamber 10 is in the toasting position. Therefore, the side wall 12, which defines the opening 13, e.g., with its distal end, can be made movable to provide the movable opening 13 relative to the connecting piece 70 in the toasting position. Thus, the apparatus 1 can have, in addition to the (first) axis of movement for moving the chamber 10 to at least three different positions, an additional (second) axis of movement for moving the opening 13 on the side wall 12 relative to the connecting piece 70. The relative movement between the opening 13 and the connecting piece 70 can be linear, so the additional axis of movement can be a linear axis of movement.The additional axis of movement can be extended in a vertical direction when the chamber 10 is in the toasting position. Therefore, the opening 13 and in particular the side wall 12 can be relatively mobile with respect to one or more parts of the chamber 10, such as with respect to the bottom part 11 of the chamber 10. As shown in Figure 5, the opening 13 can therefore be disconnected or uncoupled from the connecting piece 70 and thereby opened (i.e., uncovered) by moving away from the connecting piece 70. This movement of the opening 13 can therefore be a (linear) downward movement. Correspondingly, the opening 13 can be connected or coupled with the connecting piece 70 and thereby closed (i.e., covered) by means of the connecting piece 70 (i.e., to prevent air from escaping from chamber 10) by moving towards the connecting piece 70. This movement of the opening 13 can therefore be a (linear) upward movement. Before the chamber 10 moves from the roasting position (see Figures 4 and 5) to the grain receiving position (see Figure 6) or the grain unloading position (see Figure 7), the opening 13 and the connecting piece 70 can be moved relative to each other to decouple them. The user interface 32 can be configured to move the chamber 10 about the axis of movement and to move the opening 13 and the connecting piece 70 relative to each other (about the additional axis of movement). Therefore, the user interface 32 can be configured to combine both a rotational movement (for the chamber 10) and a linear movement (for the opening 13 and the connecting piece 70 moving relative to each other). For example, the user interface 32 can be configured so that when the user interface 32 is manipulated to move the chamber 10 out of the roasting position (e.g., to the grain discharge position or to the grain reception position), the opening 13 and the connecting piece 70 are first moved relative to each other (thereby uncoupling the opening 13 from the connecting piece 20), wherein after this relative movement of the opening 13 and the connecting piece 70, the chamber 10 is subsequently moved out of the roasting position, e.g. to the grain reception position or to the grain discharge position. Figures 8 to 11 show a third preferred embodiment of the apparatus 1. The third embodiment of the apparatus 1 corresponds substantially to the first and second preferred embodiments, respectively, unless otherwise specified below. Therefore, the description with respect to the first and second embodiments of the apparatus 1 applies analogously to the third preferred embodiment of the apparatus 1. The same reference symbols correspond to the same features. The third preferred embodiment of the apparatus 1 differs from the second preferred embodiment of the apparatus 1 in particular in that the relative movement between the connecting piece 70 and the opening 13 is provided by the connecting piece 70, which is movable relative to the fixed opening 13 when the chamber 10 is in the toasting position.Therefore, the (second) additional axis of movement mentioned above is defined by the connecting piece 70, which is movably arranged to move the opening 13 and the connecting piece 70 relative to each other. As such, the connecting piece 70 can be relatively movable with respect to one or more parts of the apparatus 1, such as with respect to the housing 20, in particular the upper part 22. As shown in Figure 9, the connecting piece 70 can therefore, in the toasting position of chamber 10, disconnect or detach from the opening 13 and thereby open (i.e., uncover) the opening 13 (for example, to allow air to escape from chamber 10) by moving away from the opening 13. This movement of the connecting piece 70 can therefore be an upward (linear) movement. Correspondingly, the connecting piece 70 can connect or engage, in the toasting position, with the opening 13 and thereby close (i.e., cover) the opening 13 by means of the connecting piece 70 (for example, to prevent air from escaping from chamber 10) by moving towards the opening 13. This movement of the connecting piece 70 can therefore be a downward (linear) movement. The second and third modes of device 1 can also be combined. Thus, relative movement between the opening 13 and the connecting piece 70 is provided by moving both the opening 13 and the connecting piece 70. In other words, for relative movement between the opening 13 and the connecting piece 70, neither the opening 13 nor the connecting piece 70 can remain fixed. The connecting piece 70 can generally be provided as a lid and / or can be designed to comprise the shell collector 50. The connecting piece 70 can be received in the housing 20 such that it is (linearly) movable with respect to the housing 20, in particular to effect relative movement with respect to the opening 13. Since relative movement between the opening 13 and the connecting piece 70 is provided for coupling / uncoupling, it is not required that the distal end of the side wall 12 be inclined. Therefore, the opening 13, i.e., the plane in which the opening 13 extends, can extend perpendicular to the side wall 12 of the chamber 10.Therefore, simpler manufacturing of the chamber 10 is achieved, as it is not necessary to tilt the side wall 12. Additionally, the perpendicular extension of the opening 13 with respect to the side wall 12, i.e., a horizontal extension in the toasting position, allows for improved sealing, particularly due to the flat connection. As shown in Figures 12 to 14, the apparatus 1 may comprise housing 20 such that housing 20 contains chamber 10. Therefore, housing 20 may be provided so that chamber 10 is not visible from outside the apparatus 1, i.e., not visible to the user of the apparatus 1. Therefore, housing 20 may surround chamber 10 on all sides. This increases the safety of the apparatus 1, as the risk of the user touching the (possibly hot) chamber 10 is eliminated or at least significantly reduced. However, housing 20 still facilitates filling chamber 10 with coffee beans and emptying the coffee beans from chamber 10. For this reason, housing 20 may include a bean receiving opening 24 and a bean discharge opening 25.Therefore, the opening 13 of chamber 10 can be selectively aligned with the grain receiving opening 24 (see Figure 13; grain receiving position) or with the grain discharge opening 25 (see Figure 14;). (grain discharge position). Therefore, by passing the coffee beans through the grain receiving opening 24, optionally provided with a filling aid such as a hopper, the coffee beans move through the opening 13, aligned with the grain receiving opening 24, into chamber 10. In the grain discharge position of chamber 10 (see Figure 14), the opening 13 is therefore aligned with the grain discharge opening 25. Thus, coffee beans can be discharged from chamber 10 through the opening 13 and subsequently through the grain discharge opening 25. With respect to the discharge direction of the coffee beans from chamber 10, and therefore outside the grain discharge opening 25, a receiving element 26 can be arranged downstream of the grain discharge opening 25. The receiving element 26 can be at least partially positioned below the grain discharge opening 25. The receiving element 26 is adapted to collect the coffee beans discharged from chamber 10 in the grain discharge position. The receiving element 26 can be arranged to expel the collected (e.g., roasted) coffee beans for further processing.to a coffee grinder and / or a beverage preparation machine. The receiving element 26 can be detachably connected to the housing 20. Therefore, the receiving element 26 can be manipulated to remove the collected coffee beans and / or to clean the receiving element 26. The connection between the receiving element 26 and the bean discharge opening 25 can be sealed, e.g., with a specific sealing element, to prevent the coffee beans, which are discharged through the opening 56 into the receiving element 26, from escaping the receiving element 26 and escaping the appliance 1. The connection between the receiving element 26 and the bean discharge opening 25 can be provided by means of an angle element. The receiving element 26 can be a (collection) container. As shown in Figures 12 to 14, the user interface 30 can be provided on a front face of the housing 20. For example, the user interface 30 is located between the grain receiving opening 24 and the grain discharge opening 25, particularly when viewed from a front view of the apparatus 1. In the embodiment shown in Figures 12 to 14, the housing 20 is at least partially cylindrical. The openings 24, 25, and preferably the user interface 30 can be located on the cover surface of the housing 20, which is, for example, the cylindrical surface of the housing 20. The user interface 32 is preferably located on a side of the housing 20, which, if the housing 20 is the optional cylindrical shape, is the at least partially circular surface.As shown in Figures 12 to 14, the user interface 32 can be in the form of a knob and / or a shape that corresponds at least partially to the shape of the housing 20. It should be clear to a person skilled in the technique that the modalities shown in the Figures are only preferred modalities, but that, nevertheless, other designs of an apparatus 1 may also be used.

Claims

1. An apparatus (1) for roasting coffee beans, the apparatus (1) comprising: a chamber (10) in which coffee beans can be received for roasting, characterized in that the chamber (10) comprises an opening (13), and a device for roasting the coffee beans received in the chamber (10), wherein the chamber (10) is movable about an axis of movement in different positions, wherein these positions comprise a roasting position and a bean discharge position, wherein • in the roasting position the device is arranged to roast the coffee beans received in the chamber (10), and • in the bean discharge position the chamber (10) is arranged such that the coffee beans can be discharged through the opening (13) from the chamber (10).

2. The apparatus (1) according to claim 1, characterized in that the camera (10) can be rotated to different positions, and / or in that the axis of movement extends horizontally.

3. The apparatus (1) according to claim 1 or 2, characterized in that the camera (10) is adapted to move manually and / or automatically to each of the different positions, and / or wherein the apparatus (1) further comprises a user interface (30, 32), such as a handle and / or a knob, for manually moving the camera (10) to each of the different positions.

4. The apparatus (1) according to any one of the preceding claims, characterized in that the apparatus (1) comprises a joining piece (70), such as a lid, to cover and preferably fit with the opening (13) in the roasting position to close and preferably seal the chamber (10) for roasting the coffee beans.

5. The apparatus (1) according to claim 4, characterized in that the opening (13) is arranged such that, when the chamber (10) is moved to the toasting position, the opening (13) moves towards the joining piece (70) to engage a coupling with the joining piece (70) in the toasting position, wherein the coupling is preferably a sealing coupling.

6. The apparatus (1) according to claim 4 or 5, characterized in that, when the chamber (10) is in the toasting position, the joining piece (70) and the opening (13) can be relatively movable relative to each other so that the opening (13) and the joining piece (70) can be coupled together, wherein the coupling is preferably a sealing coupling.

7. The apparatus (1) according to any one of the preceding claims, characterized in that the chamber (10) comprises a side wall (12), and wherein the distal end of the side wall (12) defines the opening (13), wherein the distal end of the side wall (12) is preferably inclined such that the opening (13) extends obliquely with respect to the side wall (12).

8. The apparatus (1) according to any one of the preceding claims, characterized in that in the grain discharge position the chamber (10) is arranged to discharge by gravity the coffee grains from the chamber (10) through the opening (13), wherein in the grain discharge position the opening (13) is preferably oriented downwards, 9. The apparatus (1) according to any one of the preceding claims, characterized in that the different positions further comprise a bean receiving position, wherein in the bean receiving position the chamber (10) is arranged to receive, through the opening (13), coffee beans for subsequent roasting in the roasting position, wherein in the bean receiving position the chamber (10) is preferably arranged to receive the coffee beans by gravity into the chamber (10) through the opening (13), and / or wherein in the bean receiving position the opening (13) is preferably oriented upwards.

10. The apparatus (1) according to any one of the preceding claims, characterized in that in the grain discharge position the device is adapted to provide an airflow to discharge the coffee grains from the chamber (10) through the opening (13).

11. The apparatus (1) according to any one of the preceding claims, further comprising a housing (20) for housing at least the chamber (10) and preferably also the device, characterized in that the housing (20) preferably comprises a grain receiving opening (24) and a grain discharge opening (25), wherein the grain receiving opening (24) and the grain discharge opening (25) are arranged in such a way that the opening (13) of the chamber (10) can be selectively aligned with the grain receiving opening (24) or the grain discharge opening (25).

12. The apparatus (1) according to any one of the preceding claims, characterized in that the device is arranged to generate an air current to agitate the coffee beans received in the chamber (10).

13. The apparatus (1) according to any one of the preceding claims, characterized in that the apparatus (1) is a domestic appliance.

14. The method for roasting coffee beans in a chamber (10) in which the coffee beans can be received for roasting, characterized in that the chamber (10) comprises an opening (13), the method comprising the steps of: receiving coffee beans into the chamber through the opening (13), roasting, in a roasting position, the coffee beans received in the chamber (10), moving, with respect to a movement axis, the chamber (10) to a bean discharge position, discharging, in the bean discharge position, the coffee beans through the opening (13) from the chamber (10), and moving, with respect to the movement axis, the chamber (10) to the roasting position.

15. The method according to claim 14, further comprising the step of moving, with respect to the axis of movement, the chamber to a grain receiving position, preferably further comprising the step of receiving, in the grain receiving position of the chamber (10), coffee beans into the chamber through the opening (13).

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