KR20110075127A - Manufacturing process of vacuum packinh of soybean curd - Google Patents

Abstract

PURPOSE: A producing method of vacuum packed bean curd is provided to store molded bean curd in a vacuum packing container after freezing, without dipping in water. CONSTITUTION: A producing method of vacuum packed bean curd comprises the following steps: mounting a cover on soft bean curd in a molding frame, and naturally compressing to mold the bean curd; de-molding the bean curd from the molding frame without inserting into water; cutting the de-molded bean curd; inserting the cut bean curd into a vacuum packaging container through an inlet without contacting the water; and inserting the vacuum packaging container in a freezing tank while preventing cooling water inside the freezing tank from contacting the bean curd inside the container.

Description

Manufacturing process of vacuum packinh of soybean curd}

The present invention relates to a method for manufacturing a vacuum packaging tofu, and more particularly, to the consumer by the vacuum packaging after cutting the molded tofu to a certain size without the water in the molding process, put into a vacuum packaging container and cooled. Tofu products that are rich in tofu unique to tofu can be provided, and when vacuum-packed tofu is heated with boiling water or microwave, it is molded in the tofu molding process and tastes like eating fresh tofu directly. It relates to a method for manufacturing a vacuum packaging tofu to feel.

Tofu is a food made from soybean and is one of the foods that we enjoy in our diet due to the high amount of vegetable protein. It can be divided into those sold and the tofu cut to a certain size in a packaging container, which is sealed and packaged and handled and sold.

As described above, the tofu food, whether unpacked or packaged, is sold and cooled in cold water.

For example, unpacked tofu is sold and stored in cold water in a container. In the case of packaged tofu, the tofu is cooled after being immersed in cool water before sealing the packaging. Since it is put in a container and sealed, the sealed packaging container is sold in a sealed state in which the cooling water buried in the tofu is put into the packaging container when the tofu is cooled.

By the way, although tofu food is known to give the most savory and light taste when it is eaten in a warm state without putting the compression molded in the mold in water, whether it is unpacked or packaged as described above, it is press-molded in the mold One of the reasons for cooling frozen tofu with cold water is to prevent the deterioration of tofu food and to extend its shelf life.

Therefore, consumers should try to eat warm tofu as the tofu food has the most savory and light taste, that is, hot tofu is poured into the mold in the tofu manufacturing process, covered with a cloth and pressed to remove the molded product from the mold and not put in water. The situation is not getting a chance.

The present invention has been proposed in view of the problems presented in the prior art as described above, in the provision of tofu food in the tofu molding process to complete the tofu among the various processes for preparing tofu in the state without containing the tofu Consumers put vacuum packed tofu into a vacuum packaging container and heat it with boiling water or microwave in a vacuum packaging container to prepare the tofu forming process. The invention was invented for the purpose of providing a high quality vacuum packed tofu that can taste savory and light taste, such as tofu tofu directly.

The present invention as a means for pursuing the above object,

Washing process for washing soybeans with water, soaking the washed soybeans in water, grinding process for grinding the soybeans soaked in water in the soaking process, green soybean milk crushed in the grinding process by centrifugation The first filtration step of filtering the raw waste by separating the raw paper and recovering the raw soybean milk, a steaming process of heating and steaming the soybean milk obtained in the first filtration process at a temperature of 100 ° C. or higher, and the steamed soymilk heated by the steaming process. Secondary filtration process to filter fine biji by centrifugation, coagulant input and pure tofu coagulation process to coagulate steamed soymilk by mixing coagulant with steamed soymilk obtained in the second filtration process to make soft tofu, the coagulant input and pure tofu coagulation Pure tofu crushing process to grind the tofu curd into a small size in a lump state, Tofu molding process is to fill the mold in the mold to produce a tofu, and the tofu molded in the molding process in the head to demoulded in a mold to cut to a certain size, put into a vacuum packaging container, cooled and vacuum packed, Vacuum packaged tofu is produced through a sterilization process in which hot water is sterilized by putting vacuum packed tofu into a hot water sterilizer with a vacuum packaging container, and then rapidly cooling the vacuum packed tofu which has undergone the hot water sterilization process into a rapid cooler. In the manufacturing method of vacuum packaging tofu,

The tofu molding process consists of a process of molding the tofu by placing the lid of the mold on the soft tofu filled in the mold and then pressing it naturally with only the weight of the lid, between the tofu molding process and the hot water sterilization process.

A tofu cutting process of demolding the molded tofu into a state in which the molded tofu is not spun into the water by spontaneously pressing only the weight of the lid of the molding die in the tofu molding process and cutting the deformed tofu to a predetermined size according to the weight-specification standard;

A tofu feeding step of injecting the tofu cut into a predetermined size in the tofu cutting step into the vacuum packaging container through the inlet of the vacuum packaging container without contacting water;

In the tofu dosing process, in order to cool the vacuum packaging container into which the tofu is introduced in the cooling tank in which the coolant is stored, the opening of the vacuum packaging container is such that the cooling water does not enter the vacuum packaging container through the inlet of the vacuum packaging container. Tofu contained in the vacuum packaging container is a means for transporting the vacuum packaging container floating on the surface of the cooling water so that a portion from the bottom to the middle of the vacuum packaging container exposed to the water and containing the tofu is submerged in the cooling water. Tofu cooling step of cooling;

The vacuum packaging step of vacuum-packing the vacuum packaging container by removing the air from the inside of the vacuum packaging container through the inlet of the vacuum packaging container subjected to the tofu cooling process and heat-sealed the inlet.

In addition, in the tofu cooling process, using the plurality of baskets connected to the conveyor at a predetermined interval to transfer the vacuum packaging container with the inlet of the vacuum packaging container containing the tofu floating on the surface of the cooling water stored in the cooling tank. It characterized in that it is configured to cool the tofu injected into the vacuum labeled container by the method.

According to the present invention, in the tofu molding process to complete the tofu manufacturing process, the tofu molded in a natural pressing state is taken out of the molding mold and cut into a predetermined size according to the size by weight standard without being put in water, and then put into a vacuum packaging container. After cooling to prevent the cooling water from penetrating, and then vacuum packing to manufacture a vacuum packaging tofu, consumers are warmed in a vacuum packaging container when warmed with hot water or a microwave oven in a vacuum packaging container. The tofu taste is to provide the effect to feel the savory and light taste, such as taking the tofu molded in the tofu molding process of the tofu manufacturing process out of the mold to taste immediately.

Detailed description of the vacuum packaging tofu manufacturing method according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a manufacturing process diagram of the packaging tofu of the present invention, each of the process from the process of cleanly cleaning the beans (soybean) that is the raw material of the tofu in the present invention to the process of manufacturing a vacuum packaging tofu by a rapid cooling process The process sequence will be described as follows.

<Washing process>

This process is to remove foreign substances by washing the soybean, which is a raw material, with water, and also remove foreign substances such as stones and iron powder in this process.

<Ball process>

This process is called raw water washed in the washing process called clean water, it is soaked in water for 6-12 hours during the summer season (April to October), and during the winter season (November to March) Soak it in water for 9-15 hours.

<Grinding process>

In this process, soybeans called water and an appropriate amount of water are put together in a grinder (including metstone) to grind finely to produce green soybean milk.

<1st filtration process>

This step is a step of separating the green soybean milk and raw paper from the green soybean milk juice finely ground in the grinding process.

In the first filtration process centrifuged the green soybean milk using a centrifugal separator to filter the raw fat of the coarse fibrous component in the green soybean milk to obtain a green soybean milk containing finely divided fiber.

<Steaming process>

This process is a process of heating and steaming the soybean milk juice obtained by the said primary filtration process. In the said steaming process, it is usually heated to 100 degreeC or more, and steamed soybean milk is produced.

<Secondary filtration process>

This process is a filtration process which separates fine busy paper from steamed soybean milk obtained by heating to 100 degreeC or more in the said steaming process.

The secondary filtration process is also a process of centrifuging and filtering the fine busy matter contained in steamed soybean milk once more using a centrifuge like the primary filtration process.

<Injection of coagulant and pure tofu coagulation process>

In this process, a predetermined amount of coagulant (such as water) is added to steamed soybean milk which has undergone the steaming process and the secondary filtration process, and the coagulant is mixed evenly with steamed soymilk by stirring and mixing steamed soymilk. After the work is completed, it is a process of producing a tofu that solidifies in a lump form while entangled vegetable protein components in steamed soybean milk by the coagulant action of a coagulant for a predetermined time (5-30 minutes).

Soft Tofu Crushing Process

This process is a step of crushing the soft tofu solidified in the form of agglomerates in the coagulant injection and the soft tofu coagulation step to a small size, in the soft tofu crushing step is used to grind the soft tofu using a tool such as a spatula or a grill.

As described above, the process of washing the beans to the process of compressing the soft tofu to produce tofu is made of the same process as the conventional tofu manufacturing process.

The present invention is characterized in that the tofu shaping process is performed by filling a predetermined amount of pure tofu into small pieces in the soft tofu fracturing process to form a tofu, and then cutting the tofu according to the weight-specific specifications and putting it in a vacuum packaging container. Since the process of cooling and vacuum-packing is newly configured, the following description will be given for each process to characterize the right features of the present invention.

<Tofu molding process>

This step is a step of filling a predetermined amount of pure tofu, which has been broken into small pieces in the soft tofu crushing step, into a mold, and shaping the tofu.

The tofu molding process fills the predetermined amount of the soft tofu in the state where the soft tofu is filled in the forming mold, and then collects the edges of the spreading cloth in order to cover the top surface of the soft tofu and cover the lid of the forming mold thereon. It is configured to shape the tofu by spontaneous compression with only the weight of the lid on top.

<Tofu cutting process>

This process is a step of demolding the molded tofu from the mold by spontaneously pressing only the weight of the lid of the mold in the head molding process and cutting it to a predetermined size in accordance with the weight size standard.

The tofu cutting process is to cut the tofu taken out of the mold into a predetermined size in a warm state without putting it in water, and also tofu cut to a predetermined size is transferred to the next step (tofu input process) without putting it in water.

<Tofu input process>

In this step, the tofu cut to a predetermined size in the tofu cutting step is introduced into a vacuum packaging container without contact with water.

In the tofu injection process, as shown in FIG. 2, a vacuum packing container 10 made of a material capable of vacuum packing, for example, a PE synthetic resin film is used, and one side of the vacuum packing container 10 is cut to a predetermined size. The inlet 11 through which the prepared tofu 20 can be opened is formed in an open state. Therefore, the operator is to put the head 20 through the inlet 11 of the vacuum packaging container (10).

<Tofu cooling process>

This step is a step of cooling the tofu 20 introduced into the vacuum packaging container 10 in the tofu dispensing step without making contact with water.

2 is a view showing an example of the tofu cooling process. According to the figure, the cooling water surface of the cooling tank 30 in which the coolant is stored is configured to be transported in a state in which a plurality of baskets 50 arranged at a predetermined interval on the conveyor 40 are immersed at a predetermined depth. As shown in the enlarged view of FIG. 2, the baskets 50 arranged in the conveyor 40 have a plurality of through holes 51 formed therein, so that the coolant is transferred to the basket 50 when the baskets 50 are immersed in the water surface. It is supposed to circulate inside.

Therefore, when the vacuum packaging container 20 into which the head 20 is inserted in the upper side of one side (right side in the drawing) of the cooling tank 30 is introduced into the basket 50, the inlet 11 of the vacuum packaging container 20 is a basket ( Injected to protrude to the open top of the 50), the inlet 11 of the vacuum packaging container 10 introduced into each basket 50 is introduced into the basket 50 so as to be exposed on the surface of the cooling water is transported In this case, the vacuum packaging container 10 containing the head 20 is to be introduced into the basket 50 before the basket 50 is submerged into the coolant surface at one side (left side of the drawing) of the cooling tank 30, The head 20 contained in the vacuum packaging container 10 is transported in a state in which the baskets 50 are partially locked to the surface of the coolant when the baskets 50 are transported in the rotational direction (clockwise in view of the drawing) of the conveyor 40. During the heat exchange action with the cooling water circulated through the through hole (51) into the basket (50) To be cooled.

As described above, while being partially immersed in the surface of the cooling water of the cooling tank 30 by the rotation operation of the conveyor 40, it is sequentially transferred from one side (left side in the drawing) to the other side (right side in the drawing) and exposed to the surface of the cooling water. The tofu cooling process is completed by drawing out the vacuum packaging container 10 containing the tofu 20 in the order of the basket 50.

<Vacuum Packaging Process>

This process is a process of vacuum packaging the vacuum packaging container 10 which has undergone the tofu cooling process.

In the vacuum packaging process, the air inside the container is drawn out through the inlet 11 of the vacuum packaging container 10 containing the tofu cooled in the tofu cooling process, and the inlet 11 is sealed-packed by a thermal adhesive method. At this time, the vacuum state of the vacuum packaging container 10 is to vacuum pack at a vacuum pressure that does not destroy the shape of the cooled tofu (20).

Hot water sterilization process

This process is a step of boiling water sterilization for 20 to 50 minutes (preferably 30 minutes) by putting the vacuum packaging container vacuum packed in the vacuum packaging process to hot hot water heated to 80 ~ 90 ℃ (preferably 85 ℃). At this time, the temperature of the tofu which is packaged in a vacuum state in the vacuum packaging container is heated to about 65 ~ 80 ℃ to sterilize.

<Quick Cooling Process>

This process is performed by cooling the vacuum packaging container subjected to the boiling water sterilization process in a cooling water of 5 to 9 ° C. (preferably 7 ° C.) for 70 to 120 minutes (preferably 90 minutes) to make the tofu contained in the packaging container at 10 ° C. ( Preferably it is a process of rapidly cooling below 8 degreeC).

The vacuum packaging tofu, which has been manufactured through the rapid cooling process, is stored in a refrigerator and shipped to each store. The vacuum packaging tofu of the present invention manufactured as described above is tofu molded by natural compression in the tofu molding process. The tofu contained in the vacuum packaging container is compressed by natural compression in the tofu molding process because it is cut and put into a vacuum packaging container, and the tofu contained in the vacuum packaging container is cooled and vacuum packed without directly contacting the coolant. It is packaged as it is, so that consumers can feel the savory and light taste unique tofu when they eat it by heating it with hot water or microwave in a vacuum packaging container.

On the other hand, in the manufacturing process of the present invention, the tofu cooling process for cooling the tofu put in the vacuum packaging container described in the embodiment using the cooling water stored in the cooling tank, but by using the cooling water to cool the tofu put in the vacuum packaging container It is not limited to this, tofu tofu by directly or indirectly using a cold air or other cooling medium within the scope of the technical idea of the present invention to cool the tofu injected into the vacuum packaging without directly contacting the cooling water. It may be regarded as to fall within the scope of the present invention.

1 is a vacuum packaging tofu manufacturing process of the present invention

Figure 2 is a detailed view of tofu cooling process of the vacuum packaging tofu manufacturing method of the present invention

[Description of Drawings]

10: vacuum packaging container

11: inlet

20: tofu

30: cooling tank

40: Conveyor

50: basket

51: through

Claims (1)

Washing process for washing soybeans with water, soaking the washed soybeans in water, grinding process for grinding the soybeans soaked in water in the soaking process, green soybean milk crushed in the grinding process by centrifugation The first filtration step of filtering the raw waste by separating the raw paper and recovering the raw soybean milk, a steaming process of heating and steaming the soybean milk obtained in the first filtration process at a temperature of 100 ° C. or higher, and the steamed soymilk heated by the steaming process. Secondary filtration process to filter fine biji by centrifugation, coagulant input and pure tofu coagulation process to coagulate steamed soymilk by mixing coagulant with steamed soymilk obtained in the second filtration process to make soft tofu, the coagulant input and pure tofu coagulation Pure tofu crushing process for crushing the tofu curd into a small size Tofu molding process is to fill the mold in the mold to produce a tofu, and the tofu molded in the molding process in the head to demoulded in a mold to cut to a certain size, put into a vacuum packaging container, cooled and vacuum packed, Vacuum packaged tofu is produced through a sterilization process in which hot water is sterilized by putting vacuum packed tofu into a hot water sterilizer with a vacuum packaging container, and then rapidly cooling the vacuum packed tofu which has undergone the hot water sterilization process into a rapid cooler. In the manufacturing method of vacuum packaging tofu, The tofu molding process consists of a process of molding the tofu by placing the lid of the mold on the soft tofu filled in the mold, and pressing it by the weight of the lid alone, between the tofu molding process and the hot water sterilization process. On A tofu cutting process of demolding the molded tofu into a state in which the molded tofu is not spun into the water by spontaneously pressing only the weight of the lid of the molding die in the tofu molding process and cutting the deformed tofu to a predetermined size according to the weight-specification standard; A tofu feeding step of injecting the tofu cut into a predetermined size in the tofu cutting step into the vacuum packaging container through the inlet of the vacuum packaging container without contacting water; In the tofu dosing process, in order to cool the vacuum packaging container into which the tofu is put in the cooling tank in which the cooling water is stored, the opening of the vacuum packaging container is such that the cooling water does not enter the vacuum packaging container through the inlet of the vacuum packaging container. Tofu contained in the vacuum packaging container is a means for transporting the vacuum packaging container floating on the surface of the cooling water so that a portion from the bottom to the middle of the vacuum packaging container exposed to the water and containing the tofu is submerged in the cooling water. Tofu cooling step of cooling; Vacuum packaging step of vacuum-packing the vacuum packaging container by removing the air from the inside of the vacuum packaging container through the inlet of the vacuum packaging container subjected to the head cooling process and heat-sealed the inlet; Tofu manufacturing method.

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