JP7276925B1 - Thawing heat treatment container for frozen cooked rice - Google Patents

Abstract

A thawing heat treatment container for frozen cooked rice is provided that prevents the formation of lumps of cooked rice when thawing frozen cooked rice and also prevents the boiled rice positioned at the bottom of the container from becoming soggy. A container for thawing and heat treating frozen boiled rice includes a flat container for storing plate-shaped cooked rice, a perforated inner plate for storing in the flat container and forming a drip storage space below, and a constant density on the bottom surface. A needle-shaped body is provided vertically, and a pressure plate is formed on the upper surface with a projecting leg for forming a constant droplet storage space between the flat container cover and the flat container lid when inverted. [Selection drawing] Fig. 1

Description

The present invention relates to a container for thawing and heating frozen cooked rice.

Conventionally, as a method of preserving cooked rice, a method of putting cooked rice into a flat container such as a tupperware or wrapping it in food packaging film and freezing it has been adopted.

If you divide the cooked rice into small portions and store it in the freezer, you can defrost it in a microwave oven and eat it after each meal. As a result, frozen storage of boiled rice is used especially by households with a small number of people and single persons.

However, since cooked rice has a strong stickiness, if it is individually wrapped in a flat container or a film for food packaging, the cooked rice grains will stick to each other and form clumps. Therefore, a method has been proposed in which frozen boiled rice is thawed and the lumps are loosened to improve the texture (for example, Patent Document 1).

JP-A-1993-111354

Certainly, according to the above prior art, by coexisting frozen cooked rice and water or an aqueous protein solution and heating them in a concave container, lumps of cooked rice can be loosened and cooked rice with excellent texture can be provided. .

However, there is a problem that the water seeped out from the cooked rice as it is thawed and the added water or protein aqueous solution accumulate at the bottom of the concave container, thus soaking the cooked rice at the bottom of the concave container.

The present invention has been made in view of such problems, and provides a thawing heat treatment container for frozen cooked rice that prevents the formation of lumps of cooked rice when thawing frozen cooked rice and prevents the boiled rice located at the bottom of the container from becoming soggy. It is intended to provide

The present invention comprises a flat container for storing plate-shaped cooked rice, a perforated insole plate for storing in the flat container and forming a drip storage space below, needle-shaped bodies vertically arranged at a constant density on the lower surface, and an upper surface. A container for thawing and heat treating frozen boiled rice, characterized by comprising a pressing plate with protruding legs for forming a constant droplet storage space between the lid of the flat container and the container when the container is turned upside down. It depends.

According to the first aspect of the invention, the flat container for storing the plate-shaped cooked rice and a plurality of holes vertically penetrating through the flat container are provided, and the flat container accommodates the rice and drips between the bottom surface of the flat container and the flat container. A perforated insole plate for forming a storage space, needle-like bodies vertically arranged at a constant density on the bottom surface, and legs projecting from the top surface to form a constant droplet storage space between the lid of the flat container. The pressing plate provided and the thawing heat treatment container for frozen boiled rice have the following effects.

That is, when frozen storage is performed in the container for thawing and heat treatment of frozen cooked rice according to claim 1, and then thawing is performed, since the needle-shaped bodies penetrate through predetermined portions of the plate-shaped cooked rice, the cooked rice grains are separated from each other during freezing. It is possible to prevent sticking and thaw and heat flexible rice with no lumps on the whole.

The water seeped out from the cooked rice is accumulated in the drip storage space located at the bottom of the flat container, thereby preventing contact between the cooked rice and the water.

Next, the thawed and heated flat container is turned over with the needle-like member of the pressing plate stuck in the cooked rice, and heated again in the inverted state with the pressing plate positioned downward and the perforated insole plate positioned upward. At this time, moisture such as drops stored in the flat container is discharged from the steam hole at the end of the flat container, and the lower surface of the frozen boiled rice is also sufficiently heat-treated. Then, the flat container is turned over to return to the original container state and heated again.

As a result, the cooked rice pierced by the needles is sufficiently irradiated with microwaves through the surface and peripheral portions of the needles in the upper layer, the lower layer, and the intermediate portion thereof, and is sufficiently heated as a whole. The entire frozen boiled rice is evenly and evenly thawed and heated, the conductive heat spreads to every corner of the flat container, and uneven solidified lumps can be eliminated.

In addition, the moisture accumulated in the droplet storage space due to the thawing of the frozen cooked rice becomes steam due to the heat treatment and circulates in the flat container. By passing through the steam circulation path formed between and, the whole cooked rice can be thawed to a fluffy state.

Moreover, when the steam circulating in the flat container cools down and forms water droplets, it flows down along the needle-like body into the droplet storage space below the container, so the entire cooked rice is made plump only by the moisture seeping out from the frozen cooked rice. state can be unzipped.

Fig. 2 is a perspective view showing the configuration of a container for thawing and heat-treating frozen boiled rice according to the present embodiment. FIG. 4 is a plan view showing the configuration of the flat container lid and the flat container according to the present embodiment; FIG. 4 is an explanatory diagram showing the configuration of a pressing plate according to the embodiment; Fig. 2 is an end view for explaining the configuration of the frozen boiled rice thawing heat treatment container according to the present embodiment in a side view. FIG. 4 is an explanatory view showing a procedure for thawing frozen boiled rice using the thawing heat treatment container for frozen boiled rice according to the present embodiment.

The gist of the present invention is to have a flat container for storing plate-shaped cooked rice, and a plurality of holes vertically penetrating through the flat container, which is stored in the flat container and has a drip storage space between it and the bottom surface of the flat container. A perforated insole plate for forming water droplets, needle-shaped bodies vertically arranged at a constant density on the lower surface, and legs protruding from the upper surface for forming a certain droplet storage space between the flat container lid and the pressing. It is characterized by comprising a plate.

Hereinafter, the thawing heat treatment container for frozen boiled rice according to the present embodiment will be described in detail with reference to the drawings.

As shown in FIG. 1, the thawing heat treatment container A for frozen boiled rice according to the present embodiment includes a flat container 10 that stores the plate-shaped cooked rice R, and a drip storage space 40A that is stored in the flat container 10 and drips downward. 4(b)), needle-shaped bodies 31 are vertically arranged on the lower surface 30a at a constant density, and on the upper surface 30b there is space between the flat container lid 11 when inverted. and a pressing plate 30 having legs 32 protruding therefrom for forming a constant droplet storage space 40B (see FIG. 4(b)). In addition, FIG. 4(a) is an end view showing the disassembled state of each configuration of the frozen boiled rice thawing heat treatment container A, and FIG. It is the end view which showed the assembled state in side view.

The plate-shaped cooked rice R stored in the thawing heat treatment container A according to the present embodiment is an aggregate of cooked rice grains r made by cooking and gelatinizing uncooked rice. Alternatively, it may be in the state of so-called white rice. In addition, as the type of uncooked rice, it is possible to freely select one that is generally traded in the market, such as non-glutinous rice and glutinous rice.

As shown in FIGS. 1 and 2B, the flat container 10 is a bottomed shallow container that can be sealed by closing an upper opening 12 with a flat container cover 11 . The internal capacity of the flat container 10 is not particularly limited, but can be set to an amount (approximately 100 mL to 300 mL) that can easily accommodate one bowl of rice or one serving of plate-shaped cooked rice R. In addition, FIG.2(b) has shown the top view of the flat container 10. As shown in FIG.

The material of the flat container 10 can be freely selected as long as it can be heated in a microwave oven. It is possible to adopt a glass or the like having a

As shown in FIGS. 1 and 2(a), the flat container lid 11 has an openable and closable steam hole 14 at its end. Excess steam generated when the frozen plate-shaped cooked rice R is thawed is discharged to the outside from the steam holes 14. - 特許庁Further, the steam hole 14 functions as a water discharge hole 15 for discharging water to the outside of the thawing heat treatment container A when the container A is turned upside down and tilted. In addition, FIG. 2( a ) shows a plan view of the flat container lid 11 .

In addition, as shown in FIG. 4(b), the flat container 10 can accommodate a perforated insole plate 20 for forming a drop storage space 40A below.

As shown in FIG. 1, the porous insole plate 20 includes a rectangular insole plate main body 21, supporting legs 22 extending substantially downward from the peripheral edge of the insole plate main body 21, and the insole plate main body 21. , and is composed of a plurality of (six in this embodiment) holes 23 vertically penetrating.

The perforated insole plate 20 is accommodated in the bottom portion of the flat container 10 with the plate thickness direction in the vertical direction, so that the support legs 22 come into contact with the bottom surface 13 of the flat container 10 to regulate the position of the insole plate main body 21. A droplet storage space 40A is formed between the bottom surface 13 and the insole plate main body 21. - 特許庁

In addition, the space above the perforated insole plate 20 (hereinafter also referred to as the “cooked rice storage space 41”) and the drop storage space 40A are brought into internal communication with each other through the holes 23, so that the cooked rice storage space 41 stores the water. When the frozen plate-shaped boiled rice R is thawed, the water oozing out can be dripped into the drip storage space 40A through the holes 23. - 特許庁

Therefore, it is preferable that the size of the hole 23 is such that steam and water droplets can pass through but the cooked rice grains r cannot pass through. For example, if the diameter of the hole 23 is 1 mm to 4 mm, the cooked rice grains r in the cooked rice storage space 41 do not come into contact with the moisture in the drip storage space 40A, so that the thawed cooked rice grains r do not become soggy.

The material of the porous insole plate 20 can be freely selected as long as it can be heated in a microwave oven like the flat container 10. Silicon, earthenware, porcelain, heat-resistant glass, and the like can be used.

As shown in FIGS. 1 and 3, the pressure plate 30 is a rectangular plate-shaped pressure plate body 33 formed to have substantially the same size as the insole plate body 21, and is vertically provided on the lower surface of the pressure plate body 33 at a constant density. A plurality of (six in this embodiment) needle-like bodies 31 and a plurality of (three in this embodiment) legs 32 projecting from the upper surface of the pressing plate main body 33 . 3A shows a plan view of the pressing plate 30, and FIG. 3B shows a bottom view of the pressing plate 30. As shown in FIG.

A plurality of (six in this embodiment) holes 34 are formed at predetermined locations in the pressing plate main body 33 so as to pass through the pressing plate body 33 in the vertical direction. The diameter of the holes 34 is substantially the same as the diameter of the holes 23 of the perforated insole plate 20 .

The needle-like body 31 is formed in a tapered needle shape with a diameter of 0.5 mm to 2 mm. The needle-like body 31 having such a structure pierces the pressure plate 30 into the cooked rice stored in the flat container 10, and separates the cooked rice grains r, r from each other without crushing the cooked rice grains, thereby forming the plate-shaped cooked rice R as a whole. Make it flexible without lumps. Further, the needle-shaped object 31 inserted into the plate-shaped cooked rice R forms a steam circulation path 42 through which the steam can pass between itself and the cooked rice grains r and a microwave radiation space in the microwave oven. Thereby, steam generated when thawing the frozen plate-shaped cooked rice R spreads evenly in the thawing heat treatment container A, and the plate-shaped cooked rice R can be thawed in a plump and moist state.

The leg 32 is formed as a substantially plate-like body elongated in the left-right direction. By gripping the legs 32, the pressing operation of the pressing plate 30 can be easily performed. Further, when the entire thawing heat treatment container A is turned upside down with the pressing plate 30 housed in the flat container 10, the top portion 32a of the leg 32 comes into contact with the flat container lid 11. Thus, it functions as a support leg 35 that regulates the position of the pressing plate main body 33 . As a result, the drip storage space 40B is formed between the pressing plate main body 33 and the flat container lid 11 by inverting the thawing heat treatment container A upside down.

Hereinafter, a method of freezing cooked rice and a method of thawing cooked rice will be described using the above-described thawing heat treatment container A for frozen cooked rice.

First, in the method of freezing cooked rice according to the present embodiment, the porous insole plate 20 is placed on the bottom surface 13 of the flat container 10, and the cooked rice is placed on the upper surface of the porous insole plate 20, and then spread out evenly. A shaped cooked rice R is formed, and a pressure plate 30 is further superimposed thereon, and needle-shaped bodies 31 are inserted into the plate shaped cooked rice R and frozen.

More specifically, the porous insole plate 20 is placed on the bottom surface 13 of the flat container 10 with a capacity of 200 ml, and 150 g of cooked rice is placed in the cooked rice storage space 41 on the upper surface of the porous insole plate 20, and then spread to flatten the plate-shaped cooked rice. form R. Next, the plate-shaped cooked rice R housing the pressing body 30 is pressed while the needle-shaped body 31 is pierced. At this time, by arranging the holes 23 of the perforated inner plate 20 and the needle-like bodies 31 in opposing positions, the needle-like bodies 31 can pass through the holes 23 and come into contact with the bottom surface 13 of the flat container 10. can. Finally, the open portion 12 above the flat container 10 is closed with the flat container cover 11 to seal it, and the container is frozen in a freezer.

By freezing the plate-shaped cooked rice R in a state in which the needle-shaped bodies 31 are pierced in this manner, the following effects can be obtained. That is, the plate-shaped cooked rice R during cryopreservation may be pressed when wrapped in a container or packaging film, and the cooked rice grains r may adhere to each other to form a large lump of cooked rice. However, if needle-shaped bodies 31 are pierced through predetermined portions of plate-shaped cooked rice R and frozen, it is possible to prevent cooked rice grains r from adhering to each other and to suppress the formation of boiled rice lumps. As a result, when the rice is laid out in a bowl, the lumps of cooked rice are not partly included, and when the chopsticks are used to pick up the cooked rice, there is no need to worry about the clumps of cooked rice. can be eliminated.

Next, a procedure for thawing the plate-shaped cooked rice R in the thawing heat treatment container A that has been frozen by the method for freezing cooked rice described above will be described.

The method of thawing cooked rice according to the present embodiment is a method of thawing plate-shaped cooked rice R stored in a thawing heat treatment container A and frozen in a microwave oven. is placed in the heating chamber of the microwave oven M to defrost the plate-shaped cooked rice R, and the second heating processing S1 to further heat the plate-shaped cooked rice R by placing the defrosting heat processing container A upside down and placing it a heat treatment S2, a water discharge treatment S3 for discharging excess moisture dripped into the drop storage space 40B, which is condensation of steam generated during the first heat treatment S1 and the second heat treatment S2, to the outside of the container; It is characterized by comprising a third heat treatment S4 in which the defrosted heat treatment container A is returned to its original inverted state and further heated.

More specifically, in the first heat treatment S1, the thawing heat treatment container A containing the frozen flat cooked rice R is placed in the heating chamber of the microwave oven M. As shown in FIG. Next, the frozen plate-shaped cooked rice R is thawed by heating for about 2 minutes at 500 W.

The moisture exuded from the frozen cooked rice R in the first heat treatment S1 becomes dew condensation W, and drips along the needle-like member 31 into the droplet storage space 40A.

In the second heat treatment S2, the thawing heat treatment container A that has undergone the first heat treatment S1 is placed upside down and further heated at 500 W for approximately one minute.

Excess steam generated through the first heat treatment S1 and the second heat treatment S2 escapes from the steam hole 14 provided in the flat container lid 11, but part of it remains in the thawing heat treatment container A to form condensation. The dew condensation W flows down to the side of the pressing plate body 33 along the inner wall surface of the flat container 10 and the needle-like members 31 of the pressing plate 30 penetrating the plate-shaped cooked rice R, and flows down to the hole 34 and the peripheral edge of the pressing plate 30. to the droplet storage space 40B.

In the wastewater treatment S3, the dew condensation W dripped into the droplet storage space 40B is discharged to the outside of the thawing heat treatment container A. As a method of discharging, the dew condensation W is removed through the water discharge hole 15 provided at the end of the flat container cover 11 . By discharging the dew condensation W in this way, it is possible to prevent the cooked rice grains r from coming into contact with moisture and to prevent the cooked rice grains r from becoming soggy.

In the third heat treatment S4, the thawing heat treatment container A, which has been subjected to the drainage treatment S3, is placed in an inverted state, and further heated at 500 W for about 1 minute.

At the time of the third heat treatment S4, the moisture remaining in the thawing and heat treatment container A turns into steam and circulates inside the thaw and heat treatment container A. Condensation W generated by cooling or excess steam flows down along the needle-like body 31 toward the bottom surface 13 of the flat container 10, and flows down the holes 23 provided in the perforated insole plate 20 and the wall surface of the flat container 10. It drips into the droplet storage space 40A.

Then, the water dripped into the droplet storage space 40A becomes steam again by heating in the microwave oven, escapes from the hole 23, and circulates in the thawing heat treatment container A via the steam circulation path 42. FIG.

As described above, when the frozen plate-shaped cooked rice R stored in the thawing heat treatment container A according to the present invention is thawed in the microwave oven, the first heat treatment S1 in the normal placement state and the inverted placement state are performed. By sequentially performing the second heat treatment S2, the drainage treatment S3 for discharging excess moisture, and the third heat treatment S4 in the normal placement state, the following effects are obtained.

That is, in the first heat treatment S1, the frozen plate-shaped cooked rice R is thawed, and the thawed heat treatment container A is turned upside down and further heated (second heat treatment S2) to remove condensation W from the flat container lid. Since the water is dripped into the drip storage space 40B provided on the 11 side, the drainage treatment S3 can be easily performed through the water discharge hole 15 provided in the flat container lid 11. FIG. By performing the wastewater treatment S3, the water content in the thawing heat treatment container A is maintained at an appropriate amount. Further, in the subsequent further heating (the third heat treatment S4), the moisture becomes steam to keep the plate-shaped cooked rice R moist while being heated, so that the thawed cooked rice can be made plump as a whole.

The plate-shaped cooked rice R in the thawed heat treatment container A that has been thawed through such a process is exposed without a lump of cooked rice when the pressing plate 30 is pulled out. You can eat it as it is.

The frozen boiled rice thawing heat treatment container A described using the embodiments as described above is not limited to the above-described embodiments, and various aspects can be adopted within the scope of the present invention.

For example, in the present embodiment, the number of needle-like bodies 31 is six, the number of legs 32 is three, and the holes 23 of the porous insole plate 20 and the holes 34 of the pressing plate 30 are six, respectively. It is not limited to these, and can be freely selected as long as the frozen cooked rice can be sufficiently thawed and the effects of the present invention can be exhibited.

Further, for example, in the present embodiment, the shape of the legs 32 is a substantially plate-like body extending in the left-right direction of the pressing plate 30. If the position can be regulated and the drop storage space 40B can be formed between the pressing plate 30 and the flat container lid 11, the shape and arrangement can be freely selected. For example, the legs 32 may be arranged in a substantially rectangular shape or substantially an X shape in plan view.

Further, in the thawing heat treatment container A according to the present embodiment, the pressing plate 30 is frozen in a state in which the plate-shaped cooked rice R is penetrated. may be formed. The space is provided so as to be at least larger than the longitudinal direction of the cooked rice grains r, and as described later, when the thawing heat treatment container A is inverted and heated and thawed, the cooked rice grains r are separated from the plate-shaped cooked rice R and pressed. Any size can be freely selected as long as it falls on the plate body 33 .

In order to reliably form a gap, a side wall of the flat container 10 may be provided with a cooked rice storage line for determining the amount of cooked rice to be stored. The cooked rice storage line is provided below the pressing plate body 33 when the pressing plate 30 is stored in the flat container 10 . As a result, if the amount of cooked rice to be stored does not exceed the cooked rice storage line, the gap can be reliably formed.

Since the pressing plate 30 and the plate-shaped cooked rice R do not come into contact with each other by providing the space, the plate-shaped cooked rice R is pressed and the cooked rice grains r do not adhere to each other, and a layer of air is included between the cooked rice grains r. Can be frozen in place. As a result, the plate-shaped cooked rice R can be thawed in a plump state.

Moreover, when heating and thawing the thawing heat treatment container A having a space upside down, that is, when heating and thawing with the space positioned below the plate-shaped cooked rice R, the following effects are obtained. The cooked rice grains r that make up the plate-shaped cooked rice R are loosened as they are thawed and drop step by step through the gaps onto the pressing plate main body 33, so that air layers are formed between the dropped cooked rice grains r. be. Also, the dew condensation adhering to the cooked rice grains r separates from the cooked rice grains r due to the falling impact and flows down into the droplet storage space 40B. As a result, contact between excess water and the cooked rice grains r can be reliably prevented, and the plate-shaped cooked rice R can be thawed in a state in which the overall plumpness and good moisture content are maintained.

A Thawing heat treatment container 10 Flat container 11 Flat container cover 12 Open part 13 Bottom surface 14 Steam hole 15 Moisture discharge hole 20 Porous insole plate 21 Insole plate main body 22 Support leg 23 Hole 30 Pressing plate 30a Lower surface 30b Upper surface 31 Needle-shaped body 32 Leg 32a Top 33 Pressing plate body 34 Hole 35 Supporting leg 40A Drop storage space 40B Drop storage space 41 Cooked rice storage space 42 Steam circulation path R Plate-shaped cooked rice r Cooked rice grain S1 First heat treatment S2 Second heat treatment S3 Drainage Treatment S4 Third heat treatment M Microwave oven

Claims (1)

A flat container for storing plate-shaped cooked rice;
a perforated insole plate having a plurality of vertically penetrating holes, which is accommodated in the flat container to form a droplet storage space between itself and the bottom surface of the flat container;
a pressing plate having needle-shaped bodies vertically arranged at a constant density on the lower surface and legs protruding from the upper surface for forming a constant droplet storage space between the flat container cover and the pressing plate;
A thawing heat treatment container for frozen boiled rice, characterized by comprising:

Images