JP4881273B2 - Tofu manufacturing method and mold box used therefor - Google Patents

Description

  The present invention relates to a method for producing tofu that can be easily taken out from a container of tofu produced by solidifying semi-solidified tofu in a mold box, and a mold box used in the method.

  In general, so-called cotton tofu is produced by crushing soybeans soaked in water, boiling the resulting raw kure into boiled koji, filtering this into okara and soy milk, and solidifying the resulting soy milk with a coagulant. It is. More specifically, in the hardening step, a filter cloth is laid on a mold box (clothing), a coagulant is put into soy milk to solidify, and after breaking, the broken tofu in a solid state is put on the filter cloth. The process of putting in the mold box (molding), dehydrating from the top, turning the mold box upside down to take out the tofu on the plate (returning), and washing the used filter cloth (cloth rinsing) Is included. In the manufacturing method, the work of upholstering requires the filter cloth to be laid down to the bottom and four corners of the mold box without any wrinkles or gaps, and the washing of the mold box is being automated, but the cloth rinse must be performed separately. Therefore, there is a problem that time and labor are required in the two steps.

  In order to solve such a problem, a punching metal mold box (Patent Document 1) or a mold box in which a nylon resin layer is attached to the inner and outer peripheries of the mold box and the inner periphery of the microhole provided in the mold box (patent Although methods have been proposed in which the work of laying filter cloth and the work of washing are omitted by using the literature 2), in these mold boxes, the tofu adheres to the mold box during molding depending on the properties of the tofu. As a result, chipping or peeling occurs on the surface of the tofu, and thus it cannot be said that the problem of tofu peeling off from the mold box can be sufficiently solved.

On the other hand, unlike the conventional cotton cloth on the bottom (bottom) of the mold box and the top surface of the semi-solidified tofu, disposable synthetic fiber paper is applied to simplify the tofu production process ( Patent Document 3), and the like (Patent Document 4) that improve mold release properties by laying a metal net have been proposed. However, none of these lays a woven cloth only on the bottom surface of the mold box, and it was not always satisfactory in terms of appearance, releasability and simplicity.
JP 2002-112727 A JP-A-8-289755 JP-A-8-9915 JP-A-3-183448

  Therefore, the object of the present invention is to make it easy to take out the tofu from the mold box after coagulating the semi-solidified tofu, reduce the burden of installing and washing the filter cloth, and provide a tofu with an excellent appearance There is to do.

  In order to solve the above-mentioned problems, the inventors of the present invention have intensively researched and laid a woven cloth on the bottom of the mold box before injecting the semi-solidified tofu into the mold box. As a result of further research, the present inventors have completed the present invention.

That is, the present invention relates to a method for producing tofu in which semi-solid state tofu is poured into a mold box and solidified, and then the mold box is turned upside down to take out the tofu on a plate. The present invention relates to the above method wherein the tofu can be easily taken out by laying a woven cloth only on the bottom surface of the mold box before pouring into the mold box.
The present invention also relates to the above method, wherein a woven fabric is used in which bar-like objects are attached at both ends so that the fabric can be extended at the bottom of the mold box.
Furthermore, the present invention relates to the above method, wherein the mold box has grooves for loading rod-like objects attached to both ends of the woven fabric laid on the bottom surface of the mold box.
The present invention also relates to the method, wherein the woven fabric is lined with a support.
Furthermore, the present invention relates to the method, wherein the support is a flexible sheet.
The present invention also relates to the above-mentioned method, wherein a woven fabric having no rod-like material attached at both ends thereof is used.
Furthermore, the present invention relates to the method, wherein the mold box does not have a groove on the bottom surface of the mold box.

The present invention also relates to a mold box used in the above method, wherein the mold box has a plurality of holes having a diameter of 0.1 mm to 5.0 mm on a side surface of the mold box.
Further, according to the present invention, the mold box includes a lid portion that presses the upper surface of the semi-solidified tofu poured into the mold box, and the lid portion has a plurality of holes having a diameter of 0.1 mm to 5.0 mm. , Relating to the mold box.
The present invention also relates to the mold box, wherein the bottom surface has a groove for loading a rod-shaped object attached to both ends of the woven fabric laid on the bottom surface.
Furthermore, this invention relates to the said mold box which does not have a groove | channel on a bottom face.

  According to the method for producing tofu of the present invention, it is only necessary to lay the woven cloth only on the bottom surface of the mold box. Therefore, the work load is greatly reduced as compared with the work of laying up to the conventional side surface. When taking out, the tofu does not remain in the mold box and can be taken out neatly. This is because before we inject the semi-solidified tofu into the mold box, lay the woven cloth on the bottom of the mold box, so that when the mold box is turned upside down and the tofu is taken out on the plate, Since it is taken out from the mold box together, it can be prevented that the tofu remains on the bottom of the mold box, and the woven cloth is peeled off after the tofu is taken out from the mold box. This is because peeling of the tofu can be freely controlled, and chipping or peeling of the tofu surface can be prevented.

Moreover, according to another aspect of the present invention, a flexible woven fabric can be used even with a flexible woven fabric by attaching a rod-shaped product to both ends of the woven fabric and providing a groove in the bottom of the mold box in which the rod-shaped product can be loaded. Since it can be laid on the bottom surface without wrinkles or gaps in a short time, the time required for upholstering can be greatly reduced. In addition, the used woven cloth can be returned to the bottom of the mold box and washed together with the mold box in the automatic mold box cleaning process, so that the cloth rinsing process can be omitted, reducing the work load. Production efficiency is improved.
Furthermore, according to another aspect of the present invention, the woven fabric is lined with a support to give hardness to the flexible woven fabric, and the woven fabric is laid on the bottom of the mold box in a short time without wrinkles or gaps. Therefore, the time required for upholstering can be greatly shortened. Similarly to the woven fabric with rods attached to both ends, the woven fabric lined with the support must be returned to the bottom of the mold box after use and washed together with the mold box in the mold box automatic cleaning process. Therefore, the cloth rinsing process can be omitted, the work load is reduced, and the production efficiency is improved.
Further, according to another aspect of the present invention, by using a flexible sheet as the support, the woven fabric is given hardness, and can be peeled off after the tofu is taken out from the mold box. Since control can also be secured, chipping or peeling of the tofu surface can be prevented, and the tofu can be made to have a desired hardness.
Furthermore, according to another aspect of the present invention, by lining the woven fabric with a support, it is laid on the bottom of the mold box in a short time without wrinkles or gaps at both ends of the woven fabric without mounting rods. As a result, it is possible to save the trouble of attaching the rod-like object and to greatly reduce the time required for the upholstery. Moreover, since the woven fabric can be washed together with the mold box after use in the same manner as the woven fabric in which the rod-like objects are mounted on both ends, the cloth rinsing step can be omitted, and the work load is reduced. Reduced production efficiency.

  Further, according to another aspect of the present invention, by providing a plurality of holes to the extent that semi-solidified tofu does not appear on the side and lid of the mold box, despite the fact that the woven fabric is not laid on the side, Semi-solidified tofu does not come out, and the tofu can be peeled well from the mold box while ensuring drainage. On the other hand, since the woven fabric is laid on the bottom surface of the mold box, the size of the hole for obtaining the desired drainage property, that is, the hardness of tofu may be appropriately determined.

In the method for producing tofu according to the present invention, the tofu can be easily taken out by placing a woven cloth on the bottom of the mold box before injecting the semi-solidified tofu into the mold box.
The semi-coagulated tofu here refers to the one that has been broken after a coagulant is added to the soymilk and solidified, and the degree of coagulation is not particularly limited. Examples of the coagulant include crude seawater magnesium chloride (seawater bittern), emulsification, magnesium chloride solution, calcium sulfide solution, glucono delta lactone (GDL), and a coagulant obtained by appropriately mixing these.

Examples of the woven cloth laid on the bottom surface of the mold box of the present invention include cotton cloth, fluororesin woven cloth, polypropylene woven cloth, nylon woven cloth, and other chemical fiber woven cloth. After removing the tofu from the mold box, the woven fabric is peeled off from the tofu, and since the woven fabric is washed and reused, it is flexible and preferably resistant to acidic and alkaline chemicals. In particular, cotton cloth, fluororesin woven cloth and polypropylene woven cloth are preferable, and cotton cloth is particularly preferable in view of the appearance of the finished tofu.
The size of the woven fabric of the present invention is not particularly limited, but is preferably cut or processed into the same size as the bottom surface of the mold box.

The woven fabric of the present invention can be fitted with sticks at both ends so that it can be extended at the bottom of the mold box. The rod-shaped material may be made of a metal such as stainless steel, titanium, aluminum, iron or the like, or the surface of which is subjected to a surface treatment such as a fluorine coating, a fluororesin, a polyamide resin, or an ultrahigh molecular weight polyethylene. It may be made of non-metal such as synthetic resin. In particular, those made of stainless steel or titanium are preferred from the viewpoints of strength, workability, economy, chemical resistance, food safety, and the like. Moreover, the shape of the rod-shaped object is not particularly limited, but may be a rectangular parallelepiped shape, a cylindrical shape, or a semi-cylindrical shape.
The method of attaching the rod-shaped object at both ends of the woven fabric of the present invention is not particularly limited, and examples thereof include a method of sandwiching both ends of the woven fabric between two rod-shaped objects and a method of winding around the rod-shaped object. For example, it is preferable to attach the both ends of the woven fabric by sandwiching them between two rectangular parallelepiped rods.

The woven fabric of the present invention can be lined with a support to impart hardness to the woven fabric. The woven fabric and the support may be sewn together or bonded with an adhesive or the like.
The support of the present invention is preferably a flexible sheet, and the material is not particularly limited. For example, a mesh sheet made of polypropylene, nylon, fluororesin, polyethylene or stainless steel, a punching sheet, or the like is used. In addition, a sheet that can be flexibly bent while securing a certain degree of hardness is preferable. Furthermore, the sheet | seat which has the water permeability which can discharge | emit the water | moisture content which comes out of tofu at the time of tofu solidification is preferable. A typical example is a polypropylene mesh sheet.
The size of the support of the present invention is not particularly limited, but is preferably cut or processed into the same size as the woven fabric.
In addition, when using the woven fabric backed with the support body, it is not necessary to mount | wear with a rod-shaped object in the both ends of this woven fabric.

  The mold box of the present invention comprises a box portion and a lid portion in which the bottom surface and the side surface are integrated, and the bottom surface, the side surface and the lid portion have a plurality of holes. The mold box of the present invention may be made of a metal such as stainless steel, titanium, aluminum, iron or the like, or the surface of which is subjected to surface treatment such as fluorine coating, fluororesin, polyamide resin, ultrahigh molecular weight polyethylene. It may be made of non-metal such as synthetic resin. In particular, those made of stainless steel or titanium are preferred from the viewpoints of strength, workability, economy, chemical resistance, food safety, and the like. The shape of the hole provided in the mold box of the present invention is not particularly limited, but may be a shape including a curve such as a circle, an ellipse, and a semicircle, or a polygon such as a triangle or a rectangle, particularly a regular polygon. However, it is particularly preferably circular. When the shape of the hole is circular, the diameter of the hole can be designed as appropriate, but the diameter of the hole on the bottom surface is preferably about 0.1 mm to 5.0 mm, more preferably 0.5 mm to 5.0 mm from the drainage surface. Further, it is preferably 3 mm, and the pitch is preferably about 0.1 to 10.0 mm, more preferably 3.0 to 6.0 mm, and the diameters of the holes on the side surface and the lid part ensure drainage. In order to prevent tofu from coming out of the hole, it is preferably about 0.1 mm to 5.0 mm, more preferably 0.5 mm to 1.0 mm, and the pitch is preferably about 1.0 to 2.0 mm, more preferably. Is 1.3 to 1.7 mm. Moreover, the thickness of the bottom face, side face, and lid of the mold box of the present invention is not particularly limited, but a thickness of about 0.3 mm to 3.0 mm, preferably about 0.5 mm to 2.0 mm is suitable.

The side surface of the mold box of the present invention may have a two-layer structure, and the inside of the side surface may be the above side surface, and the outside may be the same as the bottom surface.
The bottom of the mold box of the present invention may have a groove for loading a rod-shaped object attached to both ends of the woven fabric, and the shape of the groove is preferably the same as the rod-shaped object, and the surface state of the tofu In order to make the surface flat, the depth of the groove is preferably about the same as the height of the rod-shaped object.
When a woven fabric lined with a support is used, it is not necessary to mount a rod-shaped object at both ends of the woven fabric, so that there is no groove for loading the rod-shaped object on the bottom of the mold box of the present invention. Good.

  The tofu produced by the tofu production method of the present invention is not particularly limited, but is typically so-called cotton tofu.

Hereinafter, although the manufacturing method of this invention and one aspect | mode of the mold box used for it are demonstrated using drawing, this invention is not limited to these.
In one embodiment, the mold box 1 of the present invention includes a box part and a cover part 4 in which a bottom surface 2 and a side surface 3 are integrated, and has a plurality of holes 5 in the entire surface of the bottom surface 2 (FIG. 1). Further, the side surface 3 and the lid portion 4 also have a plurality of holes 6 over the entire surface. The holes 5 and 6 may be arranged regularly or irregularly.
In one aspect, the mold box 1 of the present invention is provided with a groove 7 inside a set of parallel side surfaces of the bottom surface 2 of the mold box 1 as shown in FIG.

In one aspect, the woven fabric 8 of the present invention has rod-like objects 9 at both ends thereof as shown in FIG.
In one aspect, the woven fabric 8 of the present invention is laid without wrinkles by loading rods 9 attached to both ends of the groove 7 provided in the mold box 1 as shown in FIG.
To produce tofu by the production method of the present invention, semi-solidified tofu is poured into a mold box 1 on which a woven fabric 8 is laid, and pressure is applied in the direction of the bottom surface 2 from the top of the lid portion 4 to produce the tofu. Solidify the tofu in the solidified state. After the tofu solidifies, the lid 4 is removed, the mold box is turned upside down to take out the tofu on a plate (not shown), and the mold box is turned upside down to be positioned on the top surface of the tofu. The woven fabric 8 is peeled off from the top surface of the tofu so that the tofu is not lost.
The used woven fabric 8 can be returned to the mold box 1 and cleaned together with the mold box in the automatic mold box cleaning process.

Embodiments of the tofu produced according to the present invention will be described below, but the present invention is not limited thereto.
Embodiment 1
A plurality of holes with a diameter of 3.0 mm are provided on the entire bottom surface with a pitch of 5.0 mm, and a plurality of holes with a diameter of 0.5 mm are provided on the entire surface of the side surface and the lid with a pitch of 1.5 mm. Place a cotton cloth with the same dimensions as the bottom of the mold box with rods on both ends in a titanium mold box with a groove for loading the sticks to be installed, and mix an appropriate amount of warm soy milk and sea water bittern. The prepared semi-solid tofu was poured and aged in a steam room. After aging, the mold box was turned upside down to remove the tofu on the plate, and the cotton cloth was peeled off from the tofu. The tofu was satisfactorily removed from the mold box, no part remained in the mold box, and the cotton cloth was peeled off well, and the tofu was not peeled off while being attached to the cotton cloth. Furthermore, by using a cotton cloth equipped with the above-mentioned mold box and rod-like object, the time required for the upholstery can be greatly shortened, and the cloth rinsing step can be omitted.

Embodiment 2
Instead of a titanium mold box having a groove as a mold box, a titanium mold box without a groove is used, and the same size as the bottom surface of the mold box with rods attached to both ends, instead of the cotton cloth, the same size as the bottom surface Tofu was produced in the same manner as in Embodiment 1 except that a cotton cloth lined with a polypropylene mesh sheet was used. As in the first embodiment, the tofu can be taken out of the mold box well, a part of the tofu is not left in the mold box, and the cotton cloth is peeled off well, and the tofu is peeled off with the tofu attached to the cotton cloth. It never happened. Furthermore, by using a cotton cloth lined with the mold box and the polypropylene mesh sheet, the time required for the upholstery can be greatly shortened, and the cloth rinsing step can be omitted.

  According to the method for producing tofu of the present invention, when tofu is taken out from the mold box after coagulation, the tofu can be taken out without remaining in the mold box. In addition, the time required for cloth tensioning can be greatly shortened, and the cloth rinsing step can be omitted, so that the work load is reduced and the production efficiency is improved.

It is a perspective view which shows the one aspect | mode of the type | mold box of this invention. It is the figure which looked at the box part of the type | mold box of this invention before laying a woven fabric from the top. It is the figure which looked at the box part of the type | mold box of this invention after spreading a woven fabric from the top. It is sectional drawing of the type | mold box of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Type box 2 Bottom face 3 Side face 4 Lid part 5, 6 Hole 7 Groove 8 Woven cloth 9 Stick-shaped object

Claims (1)

  In the method for producing tofu obtained by injecting semi-solidified tofu into a mold box having a woven cloth only on the bottom surface, solidifying the mold box, turning the mold box upside down and taking out the tofu on a plate, the woven cloth Is mounted with a rod-like object at both ends thereof, or is backed by a support, and is washed while being loaded in the mold box or removed from the mold box, and the above manufacturing method is repeated. The said manufacturing method which is used.

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