Manufacturing method of smoking material, smoking material, molded smoking material, and sintered smoking material

Abstract

The present invention aims to provide a method for easily producing smoking material from residue generated during the production process of fermented foods, which will also contribute to solving environmental problems and food waste issues. [Solution] A method for producing smoking material, comprising forming lees generated during the production process of fermented foods into particles having an average particle size of 0.5 to 1.5 mm, placing the formed particles in a drying section so that the thickness is 20 mm or less, and drying the particles placed in the drying section so that the mass is 86% or less of the mass before drying.

Description

[Technical field]

[0001] The present invention relates to a method for producing a smoking material, a smoking material, a formed smoking material, and a sintered smoking material. [Background technology]

[0002] Most of the residues (lees) generated during the manufacturing process of fermented foods have been disposed of as waste by incineration, etc. However, from the perspective of climate-related disasters, 2 In order to reduce emissions, attempts have been made to effectively use the cake without incineration, etc. For example, soy sauce cake generated during the manufacturing process of soy sauce, a fermented food, is used as livestock feed and fertilizer for agricultural products. However, in the current situation where cheap imported raw materials with high nutritional value are easily available, the value of soy sauce cake as feed and fertilizer is low, and it has not always been profitable.

[0003] For this reason, effective utilization of the residue generated during the production process of fermented foods has been studied. Patent Document 1 discloses that the residue generated during the production process of fermented foods is used as a smoking material. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6802616 Summary of the Invention [Problem to be solved by the invention]

[0005] In order to use it as a smoking material, it is necessary to adjust the moisture content in the smoking material, but in Patent Document 1, the lees are made into an aqueous solution, and the extract and flavor are transferred to wood to make the smoking material, so the time required to dry the wood increases, which can result in higher manufacturing costs. Furthermore, if the moisture content of wood is high, it is prone to corrosion, mold, and putrid odors, and treatment to suppress this may be necessary.

[0006] The object of the present invention is to provide a method for easily producing smoking material from residues generated during the production process of fermented foods, which will also contribute to solving environmental and food waste problems. [Means for solving the problem]

[0007] According to the present invention, The process of forming the residue generated during the manufacturing process of fermented foods into particles with an average particle size of 0.5 to 1.5 mm. The formed particles are placed in a drying section so that the thickness is 20 mm or less; and drying the particles placed in the drying section to a mass of 86% or less of the mass before drying; A method for producing a smoking material is provided, comprising: Effect of the Invention

[0008] According to the present invention, a method for easily producing smoking material from residue generated during the production process of fermented foods can be provided. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The following embodiments are described in detail. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more features among the multiple features described in the embodiments may be arbitrarily combined.

[0010] <Method of manufacturing the smoking material according to this embodiment> The method for producing a smoking material according to the present embodiment includes forming the residue generated during the production process of fermented foods into particles having an average particle size of 0.5 to 1.5 mm, placing the formed particles in a drying section so that the thickness of the formed particles is 20 mm or less, and drying the particles placed in the drying section so that the mass of the particles is 86% or less of the mass before drying. This makes it possible to easily produce a smoking material from the residue generated during the production process of fermented foods.

[0011] (Process of forming lees into particles) In the method for producing a smoked material according to the present embodiment, first, the lees generated in the manufacturing process of fermented foods are formed into particles having an average particle size of 0.5 to 1.5 mm. The lees generated in the manufacturing process of fermented foods are not particularly limited, but examples thereof include soy sauce lees, beer saccharification lees, beer yeast lees, whiskey fermentation lees, sake lees, and vinegar fermentation lees. The lees generated in the manufacturing process of these fermented foods can be provided by the manufacturer of the fermented foods. In one embodiment, the lees generated in the manufacturing process of fermented foods can be soy sauce lees. By using soy sauce lees, a smoked material that can produce smoked foods having a savory aroma of soy sauce can be obtained. Hereinafter, the method for producing a smoked material according to the present embodiment will be described using soy sauce lees as the lees generated in the manufacturing process of fermented foods.

[0012] Soy sauce cake is the residue left after squeezing soy sauce moromi, and is not particularly limited, and soy sauce cake generated by various methods such as the traditional brewing method, the mixed brewing method (new brewing method), the mixed method (amino acid addition method), etc. The type of soybean used as the raw material is also not particularly limited, and examples include whole soybeans (unprocessed soybeans), defatted soybeans, and dehulled soybeans.

[0013] The soy sauce cake is formed into particles with an average particle size of 0.5 to 1.5 mm. The forming means is not particularly limited, and can be formed using a mincer, juicer, etc. Mincers and juicers are equipped with a plate (filter) that can adjust the average particle size, and can form the soy sauce cake into particles with an average particle size of 0.5 to 1.5 mm. In addition, although soy sauce cake has a relatively high viscosity, mincers and juicers can control the average particle size by selecting a filter while crushing it under pressure, even if the object to be formed has a relatively high viscosity. Therefore, in forming with a mincer or juicer, clogging of the soy sauce cake and adhesion of the soy sauce cake to the inside of the forming device are suppressed.

[0014] The average particle size of the molded particles can be 0.3 mm or more in one embodiment, 0.5 mm or more in another embodiment, and 0.8 mm or more in another embodiment. This allows the aroma of the lees to remain sufficiently in the smoking material even after the drying process, and a good smoking material can be obtained. The average particle size of the molded particles can be 2.0 mm or less in one embodiment, 1.5 mm or less in another embodiment, and 1.0 mm or less in another embodiment. This allows the smoking material to be easily made to have an appropriate moisture content in the drying process, and can be obtained to have combustion stability and emit an appropriate amount of smoke. The average particle size of the molded particles is obtained by a sieving method, in which sieves are stacked in order from the smallest opening to the smallest opening, and the sample remaining on each sieve is weighed, and the particle size at which the cumulative 50% is obtained is the average particle size.

[0015] (Step of placing the molded particles in a drying section) Next, the molded particles are placed on the drying section to a predetermined thickness, in other words, a predetermined height from the drying section. The upper limit of the thickness of the molded particles may be 30 mm or less in one embodiment, 20 mm or less in another embodiment, and 15 mm or less in another embodiment. This allows a smoking material having an appropriate moisture content to be easily obtained, and a smoking material having combustion stability and capable of releasing an appropriate amount of smoke can be obtained. The lower limit of the thickness of the molded particles is not particularly limited, but may be 5 mm or more in one embodiment, 10 mm or more in another embodiment, and 15 mm or more in another embodiment. This saves space required for drying.

[0016] The arrangement of the molded particles is not particularly limited. For example, the molded particles may be arranged in contact with each other, in non-contact, or overlapping. The molded particles may be placed on the drying section in a plate shape of a predetermined thickness as a whole. In addition, the drying section on which the molded particles are placed is not particularly limited as long as the molded particles can be placed, and may be a plate-shaped member, a sheet member, a flat-bottom container such as a tray, or the like.

[0017] (Step of drying the particles placed in the drying section) Next, the particles placed on the drying section are dried. The drying conditions, such as the drying method, drying temperature and time, are not particularly limited as long as the drying of the particles placed on the drying section is performed so that the mass of the particles after drying is a predetermined value relative to the mass before drying. For example, the drying of the particles may be performed by natural drying at, for example, 15 to 30°C (approximately room temperature) by placing the drying section on which the particles are placed in an ventilated dark place, or by placing the drying section on which the particles are placed in a device that keeps the temperature and humidity constant and drying at, for example, 15 to 30°C (approximately room temperature), or by placing the drying section on which the particles are placed in a dryer and drying at, for example, 80 to 100°C. In addition, the particles placed on the drying section may be stirred at predetermined intervals during drying. This allows the particles to be dried uniformly and the drying speed of the particles to be increased.

[0018] In one embodiment, the particles can be dried so that the upper limit of the mass after drying is 90% or less by mass of the mass of the particles before drying, and in another embodiment, 86% or less by mass of the mass of the particles before drying. This can suppress the generation of mold and odor, and can provide a smoking material with an appropriate moisture content. The mass of the particles after drying can be determined by arranging a predetermined amount of particles (e.g., 100 g) so as to be distinguished from other particles, and measuring the mass of the distinguished particles at predetermined time intervals. In one embodiment, the relationship of the mass change of the particles to the drying time of the particles can be determined in advance, and the drying time can be adjusted to dry the particles to a predetermined mass.

[0019] In addition, the lower limit of the mass of the particles after drying is not particularly limited, but in one embodiment, the particles can be dried to 80% by mass or more of the mass before drying, and in another embodiment, the particles can be dried to 84% by mass or more of the mass before drying, which allows the aroma of soy sauce to remain in the smoking material, resulting in a good smoking material.

[0020] Furthermore, the method for producing the smoking material according to the present embodiment may include judging whether the smoking material is acceptable or not.

[0021] (Step of judging the pass / fail of dried particles) A test may be carried out to determine whether the dried particles pass or fail. In the pass / fail determination, the dried particles are burned, and the pass / fail of the dried particles before combustion is determined based on the color of the particles after combustion. For example, the dried particles are burned in the same manner as when used as a smoking material, and when the color changes to black, the dried particles are determined to pass as a smoking material, and when the color changes to a color other than black, such as dark brown, the dried particles are determined to fail as a smoking material. This makes it possible to obtain a smoking material with stable quality. In addition, during the test to determine whether the dried particles pass or fail, the smoke aroma and the continuity of combustion may be checked to evaluate the performance as a smoking material, or a food may be smoked, and the smoky aroma and the taste of the food may be checked to evaluate the performance as a smoking material.

[0022] Furthermore, the method for producing a smoking material according to the present embodiment may include the following steps.

[0023] (Process for forming smoking material into a molded body) The smoking material may be formed into a molded body having a block shape. The method for forming the molded smoking material (molded smoking material) is not particularly limited. In one embodiment, the molded smoking material may be formed by introducing the smoking material into a mold made of resin or metal and molding it into a predetermined size and shape, and a molding machine may be used. In addition, pressure may be applied during molding to remove internal gas (air). In another embodiment, the molded smoking material may be formed by adding a binding component to the lumber, mixing, and then introducing the mixture into a mold made of resin or metal and molding it into a predetermined size and shape, and a molding machine may be used. In addition, pressure may be applied during molding to remove internal gas (air).

[0024] When a binding component is used, a carbohydrate (sugar) can be used as the binding component, and examples thereof include dextrin, pullulan, starch, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, carboxymethyl cellulose, galactomannan, etc. The content of the binding component is not particularly limited, and can be 10% by mass or less in one embodiment, 7% by mass or less in another embodiment, 5% by mass or less in yet another embodiment, 0.1% by mass or more in one embodiment, 1% by mass or more in another embodiment, and 3% by mass or more in yet another embodiment, based on the shaped smoking material. This makes it possible to maintain the shaped body and to produce a smoking material that can emit an appropriate amount of smoke.

[0025] (Process for sintering smoking materials) The smoking material may be a sintered body having a block shape. The method for forming the sintered smoking material (sintered smoking material) is not particularly limited, and may involve firing the above-mentioned molded smoking material without a binding component or the above-mentioned molded smoking material with a binding component. The firing temperature is not particularly limited, and may be selected, for example, from the range of 50 to 150°C. In addition, the above-mentioned molded body may be fired while still in the mold, or the molded body may be removed from the mold and fired.

[0026] <Smoking material according to this embodiment> The smoking material according to this embodiment is made of fermented food residue components and has a moisture content of less than 25% by mass. The smoking material is made of fermented food residue components and does not contain wood, so it does not produce the corrosion, mold, or putrid odors that occur depending on the moisture content of wood.

[0027] The dregs of fermented foods may be the same as those described in the above <Manufacturing method of smoking material according to this embodiment>. Hereinafter, the smoking material according to this embodiment will be described using soy sauce dregs as the dregs generated in the manufacturing process of fermented foods. The components contained in the dregs of fermented foods vary depending on the fermented foods, but for example, soy sauce dregs contain dietary fiber, moisture, ash, protein, lipids, carbohydrates, salt, etc. Note that ash is the residue obtained by incinerating food at high temperature and removing organic matter and moisture, and examples of this include minerals such as potassium, sodium, and iron. The smoking material may be made of components of the dregs of fermented foods, or may contain components that generate a smoky aroma.

[0028] The average particle size of the smoking material is not particularly limited, but may be 0.5 to 1.5 mm. The average particle size of the smoking material is substantially equal to the average particle size of the lees formed during the manufacturing process of the smoking material. Therefore, the average particle size of the smoking material may be 0.3 mm or more in one embodiment, 0.5 mm or more in another embodiment, 0.8 mm or more in another embodiment, and 2.0 mm or less in one embodiment, 1.5 mm or less in another embodiment, and 1.0 mm or less in another embodiment. This allows the smoking material to have an appropriate moisture content, and to have combustion stability and emit an appropriate amount of smoke. The average particle size of the smoking material is obtained by a sieving method, in which sieves are stacked in order from the smallest mesh size, and the sample remaining on each sieve is weighed, and the average particle size at which the cumulative 50% is obtained is the average average particle size.

[0029] The upper limit of the moisture content of the smoking material can be less than 25% by mass in one embodiment, and 20% by mass or less in another embodiment. This can suppress the generation of corrosion, mold, and putrid odors, and can provide a smoking material with an appropriate moisture content. The moisture content of the smoking material can be calculated by drying the smoking material at about 110°C for 2 hours, and then calculating the mass of the smoking material before and after drying.

[0030] The lower limit of the moisture content of the smoking material is not particularly limited, but in one embodiment, it can be 10% by mass or more of the mass of the particles before drying, and in another embodiment, it can be 15% by mass or more, which allows the aroma of soy sauce to remain in the smoking material, resulting in a good smoking material.

[0031] (molded smoked wood) The smoking material may be a molded body having a block shape. The molded smoking material (molded smoking material) is an assembly of a plurality of smoking materials and has a fixed shape. The shape of the molded smoking material is not particularly limited, and examples thereof include rod shapes such as rectangular parallelepipeds and cylindrical shapes, cubes, spheres, pyramids such as triangular pyramids and square pyramids, and disk shapes. In one embodiment, the molded smoking material is a rectangular parallelepiped (block shape). The dimensions of the block-shaped molded smoking material are not particularly limited, and the cross section perpendicular to the longitudinal direction may be 10 to 50 mm x 10 to 50 mm, and the length in the longitudinal direction may be 100 to 300 mm. As an example, the dimensions of the block-shaped molded smoking material may be 40 mm x 40 mm x 180 mm. The cross section is not limited to a square shape, and may be a rectangle.

[0032] The shaped smoking material may have a binding component. As the binding component, a carbohydrate (sugar) can be used, and examples thereof include dextrin, pullulan, starch, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, carboxymethyl cellulose, galactomannan, and the like. The content of the binder is not particularly limited, and may be 10% by mass or less in one embodiment, 7% by mass or less in another embodiment, 5% by mass or less in yet another embodiment, 0.1% by mass or more in one embodiment, 1% by mass or more in another embodiment, and 3% by mass or more in yet another embodiment, based on the shaped smoking material. This allows the smoking material to be maintained as a shaped body and to emit an appropriate amount of smoke.

[0033] The moisture content of the formed smoked material can be less than 25% by mass in one embodiment, 20% by mass or less in another embodiment, 10% by mass or more of the mass of the particles before drying in one embodiment, and 15% by mass or more in another embodiment. This can suppress the generation of corrosion, mold, and putrid odors, and can provide a smoked material with an appropriate moisture content, and the aroma of soy sauce can remain in the smoked material, making it a good smoked material. The moisture content of the formed smoked material can be calculated by drying the smoked material at about 110°C for 2 hours and measuring the mass of the formed smoked material before and after drying.

[0034] (Sintered smoking material) The smoking material may be a sintered body. The sintered body of the smoking material (sintered smoking material) is a smoking material obtained by sintering a plurality of smoking materials and has a fixed shape. The shape of the sintered smoking material is not particularly limited, and examples thereof include rod shapes such as rectangular parallelepipeds and cylindrical shapes, cubes, spheres, pyramids such as triangular pyramids and square pyramids, and disk shapes. In one embodiment, the sintered smoking material is a rectangular parallelepiped (block shape). The dimensions of the block-shaped sintered smoking material are not particularly limited, and the cross section perpendicular to the longitudinal direction may be 10 to 50 mm x 10 to 50 mm, and the length in the longitudinal direction may be 100 to 300 mm. As an example, the dimensions of the block-shaped sintered smoking material may be 40 mm x 40 mm x 180 mm. The cross section is not limited to a square shape, and may be a rectangle.

[0035] The sintered smoking material may contain a binding component. The binding component may be the same as that contained in the formed smoking material, and the content of the binding component may be the same. This allows the smoking material to be maintained as a sintered body and to emit an appropriate amount of smoke.

[0036] The moisture content of the sintered smoking material can be less than 25% by mass in one embodiment, 20% by mass or less in another embodiment, 10% by mass or more of the mass of the particles before drying in one embodiment, and 15% by mass or more in another embodiment. This can suppress the generation of corrosion, mold, and putrid odors, and can provide a smoking material with an appropriate moisture content, and the aroma of soy sauce can remain in the smoking material, making it a good smoking material. The moisture content of the sintered smoking material can be calculated by drying the smoking material at about 110°C for 2 hours and measuring the mass of the sintered smoking material before and after drying.

[0037] The shaped smoking material and the sintered smoking material may have grooves for cutting so that the amount used can be adjusted. The shaped smoking material and the sintered smoking material may have an ignition agent or the like applied to a part of the shaped smoking material and the sintered smoking material. This allows the ignition agent to continue to emit smoke for a certain period of time once it is ignited.

[0038] Smoking materials that are not bound together are easy to use for hot smoking because the temperature inside the smoker rises in a short time, whereas block smoking materials, molded smoking materials, and sintered smoking materials can continue to emit smoke for a long time, making them easy to use for warm smoking and cold smoking.

[0039] <Summary of the embodiment> The above embodiment discloses at least the following method for producing smoking material and smoking material.

[0040] 1. The method for producing the smoking material of the above embodiment is as follows: The process of forming the residue generated during the manufacturing process of fermented foods into particles with an average particle size of 0.5 to 1.5 mm. The formed particles are placed in a drying section so that the thickness is 20 mm or less; and drying the particles placed in the drying section to a mass of 86% or less of the mass before drying; Includes. According to this embodiment, smoking material can be easily produced from the residue generated during the production process of fermented foods, and the generation of corrosion, mold, and putrid odors can be suppressed, and smoking material with an appropriate moisture content can be obtained.

[0041] 2. In the above embodiment, The particles placed in the drying section are dried to a mass of 84 to 86% of the mass before drying. According to this embodiment, it is possible to obtain a good smoking material that can suppress the generation of corrosion, mold, and putrid odors, has an appropriate moisture content, and retains the aroma of soy sauce in the smoking material.

[0042] 3. In the above embodiment, The lees are soy sauce lees. According to this embodiment, a smoked food having the savory aroma of soy sauce can be obtained.

[0043] 4. In the above embodiment, The shaping is performed using a mincer. According to this embodiment, even if the object to be molded has a relatively high viscosity, clogging and adhesion of dregs to the inside of the device are suppressed.

[0044] 5. In the above embodiment, The method further includes burning the dried particles and determining whether the dried particles pass or fail before burning based on the color of the particles after burning. According to this embodiment, it is possible to obtain smoking material with stable quality.

[0045] 6. In the above embodiment, When the color of the particles after combustion is black, the dried particles before combustion are judged as pass. According to this embodiment, it is possible to obtain smoking material with stable quality.

[0046] 7. The smoking material of the above embodiment is A smoking material composed of ingredients of fermented food residue, The moisture content is less than 25% by mass. According to this embodiment, the material is made of fermented food residue and does not contain wood, so that the odors of corrosion, mold, and decay that occur depending on the moisture content of wood are suppressed, and the smoking material has an appropriate moisture content.

[0047] 8. In the above embodiment, It is made from the residue of the fermented food. According to this embodiment, since the material is made from fermented food residue and does not contain wood, the odors of corrosion, mold, and decay that occur depending on the moisture content of wood are suppressed, and a smoking material with an appropriate moisture content can be obtained.

[0048] 9. In the above embodiment, The fermented food residue is soy sauce residue. According to this embodiment, a smoked food having the savory aroma of soy sauce can be obtained.

[0049] 10. In the above embodiment, The moisture content is 20% by mass or less. According to this embodiment, it is possible to obtain a smoking material that is suppressed from corroding, being moldy, and having a putrid odor, and that has an appropriate moisture content.

[0050] 11. In the above embodiment, The particles have an average diameter of 0.5 to 1.5 mm. According to this embodiment, it is possible to obtain a smoking material that is suppressed from corroding, being moldy, and having a putrid odor, and that has an appropriate moisture content.

[0051] 12. In the above embodiment, The particles have a moisture content of 20% by mass or less and an average particle size of 0.5 to 1.5 mm. According to this embodiment, it is possible to obtain a smoking material that is suppressed from corroding, being moldy, and having a putrid odor, and that has an appropriate moisture content.

[0052] 13. The smoking material of the above embodiment is It is a molded smoking material having a block shape. This embodiment facilitates use in hot and cold smoking.

[0053] 14. The molded smoking material of the above embodiment is The moisture content is 20% by mass or less. According to this embodiment, it is possible to obtain a smoking material that is suppressed from corroding, being moldy, and having a putrid odor, and that has an appropriate moisture content.

[0054] 15. The molded smoking material of the above embodiment is Contains a binding component. This embodiment allows for the smoking material to be of a predetermined size and shape.

[0055] 16. The smoking material of the above embodiment is It is a sintered smoking material having a block shape. This embodiment facilitates use in hot and cold smoking.

[0056] 17. The sintered smoking material of the above embodiment is The moisture content is 20% by mass or less. According to this embodiment, it is possible to obtain a smoking material that is suppressed from corroding, being moldy, and having a putrid odor, and that has an appropriate moisture content.

[0057] 18. The sintered smoking material of the above embodiment is Contains a binding component. This embodiment allows for the smoking material to be of a predetermined size and shape. EXAMPLES

[0058] The present embodiment will be described below with reference to examples. However, the present embodiment is not limited to the following examples as long as the gist of the present embodiment is not exceeded.

[0059] Example 1 20 kg of soy sauce cake was sequentially put into a mincer equipped with a plate with 1 mm openings, and the soy sauce cake was molded into particles with an average particle size of 0.5 to 1.5 mm. The mincer used was equipped with a plate with multiple 1 mm openings, and the molded soy sauce cake was molded into an average particle size of 1 mm. The molded particles were placed on a sheet member, which is a drying section, so that the thickness was about 20 mm. In order to check the degree of drying, 100 g of molded particles were arranged so that they could be distinguished from other molded particles. The drying section on which the molded particles were placed was placed in a dark place that was ventilated, and the molded particles of soy sauce cake were dried at around room temperature (about 23 degrees). From the start of drying, the mass of the distinguished molded particles was measured every 24 hours (1 day) to determine the mass after drying, and the molded particles were stirred.

[0060] The molded particles were dried for about 96 hours (4 days). The dried molded particles had a mass of 85% of the mass before drying. The average particle size of the molded particles was 1.0 mm, and the moisture content was 18% by mass. The moisture content of the dried molded particles was determined by drying the dried molded particles at about 110°C for 2 hours and measuring the mass of the molded particles before and after drying. Comparative Example 1 Dried shaped particles were prepared in the same manner as in Example 1, except that the shaped particles were dried for about 72 hours (3 days). The dried shaped particles had a mass of 92% of the mass before drying. The average particle size of the shaped particles in Comparative Example 1 was 1.0 mm, and the moisture content was 25% by mass.

[0061] (Evaluation of smoking materials) The dried molded particles of Example 1 and Comparative Example 1 were separately placed in a smoker containing food and burned to check the color change of the molded particles after burning, the continuity of burning, the smoky aroma of the food, and the taste of the food. The dried molded particles of Example 1 and Comparative Example 1 were also placed in a sealed container and stored for about one month to check the condition after storage.

[0062] The color of the molded particles of Example 1 after burning changed to black. The molded particles emitted smoke for about 4 hours, and had sufficient burning continuity. The smoked food had a fragrant soy sauce aroma and a soy sauce flavor. The dried molded particles of Example 1 stored for about one month showed no change in color, and no mold was observed. This shows that the dried molded particles of Example 1 were good smoking materials.

[0063] The color of the molded particles of Comparative Example 1 after burning changed to dark brown. The molded particles emitted smoke for about 4 hours and had sufficient burning continuity. However, the smoked food had a weak soy sauce aroma and flavor. In addition, the dried molded particles of Comparative Example 1 stored for about one month showed no change in color, but mold was observed. This showed that the dried molded particles of Comparative Example 1 could not be used as a smoking material.

[0064] Although the embodiment of the invention has been described above, the invention is not limited to the above embodiment, and various modifications and variations are possible within the scope of the gist of the invention.

Claims

1. Forming the residue generated during the production process of fermented foods into particles with an average particle size of 0.5 to 1.5 mm; Placing the molded particles in a drying section so that the thickness is 20 mm or less; and drying the particles placed in the drying section to a mass of 86% or less of the mass before drying; A method for producing smoking material comprising the steps of:

2. The method for producing a smoking material according to claim 1, wherein the particles placed in the drying section are dried to a mass of 84 to 86% of the mass before drying.

3. The method for producing a smoking material according to claim 1, wherein the lees are soy sauce lees.

4. The method for producing smoking material according to claim 1 , wherein the shaping is performed using a mincer.

5. The method of claim 1, further comprising burning the dried particles and judging the pass / fail of the dried particles before burning based on the color of the particles after burning.

6. The method for producing smoking material according to claim 5, wherein the dried particles before combustion are judged to be acceptable when the color of the particles after combustion is black.