JP2012034855A - Rice cooking aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooking aid by which a user can skillfully and generally evenly cook special rice such as low protein polished rice.SOLUTION: The rice cooking aid (10) is to be accommodated in a rice cooking pot (1) on cooking special rice such as low protein polished rice, and includes a sieve shape raised bottom body (3) with a number of through-holes in a size passable water but not passable rice particles and a sieve shape auxiliary container (2) with a number of through-holes in a size passable water but not passable rice particles on overall surface. The sieve shape raised bottom body (3) has a shape positioning on the bottom center part of the rice cooking pot (1) and upward projecting out so that only water may exist in an inside space (30). The sieve shape auxiliary container (2) is made into a shape along the pot inside, prescribed gaps (20a), (20b) are formed so that only water may exist in the gap to the pot inner surface, and the sieve shape raised bottom body (3) is set on the center of the bottom part.

Description

  The present invention relates to a rice cooking aid that is stored in a rice cooker when cooking special rice such as low protein rice or starch rice.

  Recently, as part of the treatment of patients with kidney disease and high blood sugar levels, dietary treatments using staple rice such as low protein rice and starch rice have been adopted. Conventionally, when cooking low protein rice, low protein rice and water are put into a rice cooker in the same manner as ordinary white rice and cooked by gas fire or IH heating. Moreover, in the rice cooker, a colander container that operates in the vertical direction in the rice cooker and a drive device that operates the colander container upward are provided. There is a container that rises to the top, drains low-protein rice in a colander-like container, and cooks it to steam using the water remaining in the rice cooker (Patent Document 1).

JP-A-9-173209

  Low protein rice has the property that it removes much of the surface layer containing protein from white rice and starch is exposed on the surface of the rice, so that it quickly gelatinizes during cooking. Therefore, if rice is cooked as it is, the temperature at the inner periphery of the pot rises faster than the center of the pot, and the low protein rice in the periphery is gelatinized before the heat passes through the center, eliminating the grain interval and heating to the center of the pot. It was difficult for water to pass through, and heat transfer to the low protein rice in the center of the pot was hindered, making it difficult to cook well. Further, even in the rice cooker (Patent Document 1), the low protein rice in the raised colander-like container is preliminarily gelatinized by the low protein rice on the surface exposed to water vapor, which inhibits heat conduction to the center by water vapor. It is difficult to cook low protein rice evenly in the center.

  In addition, when cooking low protein rice in a rice cooker, the amount of rice is reduced and the low protein rice is stored shallowly and widely in the bottom so that the entire low protein rice is heated almost simultaneously from the inside of the kettle. However, the current deep-bottom rice cooker used for white rice cooking is less than the minimum amount of rice, and the required amount of cooking is not ensured.

  In view of the above circumstances, an object of the present invention is to provide a rice cooking aid that can cook special rice such as low protein rice evenly even in the current rice cooker used for white rice cooking.

The rice cooker according to the present invention is
When cooking special rice such as low protein rice and starch rice, it is a rice cooking aid that is housed in a rice cooker,
It has a colander-shaped bottom body in which a large number of through-holes having a size that allows water to pass and rice grains cannot pass,
The monkey-like raised bottom is formed in a shape that is located at the center of the bottom of the rice cooker and protrudes upward so that only water is present in the inner space.
Due to the above configuration, special rice such as low protein rice in the rice cooker is deposited on the outside of the monkey-shaped bottom body in the state of being soaked in water, and the monkey-shaped raised bottom body is located at the center of the special rice pot. Be placed. There is only water in the space inside the colandered bottom. During cooking, the water in the space of the colander-shaped bottom body is heated to become heated water, and the special rice at the center of the pot is conductively heated through the heated water. Therefore, even if the special rice around the inner surface of the kettle begins to cook and gelatinizes early and the heat transfer to the central portion of the kettle is obstructed, the special rice in the central portion of the kettle remains in the space of the raised monkey bottom body. Heat is transmitted by conductive heating through heated water and cooked.

In the rice cooking aid,
Provided with a colander-shaped auxiliary container in which a large number of through-holes having a size that allows water to pass and rice grains cannot pass,
The colander-shaped auxiliary container has a shape along the inner surface of the hook, a predetermined gap is formed so that only water exists between the inner surface of the hook and the colander-shaped bottom body is provided at the bottom center. Is desirable.
According to this, special rice is accommodated in a colander-shaped auxiliary container, and only water exists in the gap between the colander-shaped auxiliary container and the inner surface of the rice cooker. Special rice is easily gelatinized and burnt quickly, but the special rice around the inner surface of the pot is not directly heated from the rice cooker by the colander-shaped auxiliary container, and heated water in the gap between the colander-shaped auxiliary container and the rice cooker Since it is heated by conduction, it can prevent the special rice from being burnt during cooking. The monkey-like raised bottom body can be provided integrally or separately with respect to the bottom center of the monkey-like auxiliary container.

In the rice cooking aid,
The monkey-like raised bottom body and the monkey-like auxiliary container are configured separately,
A plurality of convex portions are formed by projecting upward a part of the bottom of the colander-shaped auxiliary container,
The monkey-like raised body is in the form of the monkey so that all of the convex portions are simultaneously in contact with the inner peripheral surface of the lower open end of the monkey-like raised bottom body or simultaneously with the outer peripheral surface of the lower open end. It is desirable to install at the bottom of the auxiliary container.
By configuring the colander-shaped bottom body and the colander-shaped auxiliary container separately, if the colander-shaped bottom body is removed after cooking, it is possible to make the special rice in the rice-cooking pot easier to walk, The monkey-like raised bottom body and the monkey-like auxiliary container can be separately cleaned, and the cleaning operation is facilitated.
Further, since the bottom of the colander-shaped auxiliary container is provided with a plurality of convex portions so as to contact only either the outer peripheral surface or the inner peripheral surface of the lower open end of the colander-shaped bottom body, The raised bottom body can be easily installed in the center of the bottom of the colander-shaped auxiliary container, and when the special rice and water are put into the rice cooker or during cooking, the colander raised body is the rice cooker. It is possible to prevent the inconvenience of being shifted from the center position of the bottom of the.

In the rice cooking aid,
The bottom part of the colander-shaped auxiliary container is provided with a leg portion that projects a part of the bottom of the colander-shaped auxiliary container downward, and the upper end of the colander-shaped auxiliary container is provided with the upper end of the colander-shaped auxiliary container outward. It is desirable that a flange portion extending to the side is provided.
According to this, by the said leg part and the said flange part, the clearance gap in which only water exists between a colander-shaped auxiliary container and the inner surface of a rice cooker can be formed reliably reliably. Therefore, the inner peripheral portion of the special rice pot can be heated evenly and uniformly through the heating water.
Moreover, since the said leg part and the said flange part are formed with the colander-shaped auxiliary container itself, water can be distribute | circulated.

  As mentioned above, according to the rice cooking aid which concerns on this invention, even if it is special rices, such as low protein rice which is easy to inhibit the heat transfer to a pot central part, by using the above-mentioned monkey-like bottom body, Since conduction heating through the heating water in the colander-shaped bottom body becomes possible, the heat is also transmitted to the special rice in the center of the pot, so that rice can be cooked. Therefore, special rice can be cooked evenly from the inner periphery of the pot to the center of the pot.

It is a disassembled perspective view which shows the structure of the rice cooking assistance tool by embodiment. It is sectional drawing which shows the state which accommodated the rice cooking auxiliary tool by embodiment in the rice cooking pot. It is a top view of the colander shaped bottom body of the rice cooking assistance tool by embodiment. It is sectional drawing which shows the state which put low protein rice and water in the rice cooking pot in which the rice cooking assistance tool was accommodated. It is explanatory drawing which shows the mode in the rice cooking of the low protein rice using the rice cooking assistance tool. It is a graph which shows the temperature change of the bottom temperature of the rice cooking pot in the case of using rice cooking aids, and the case where it is not used, and the temperature change of the inner surface peripheral part of a low protein rice, and a pot center part. It is a top view of the monkey-like raising bottom body of the rice cooking assistance tool by other embodiment.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, the rice cooking aid (10) according to the embodiment is accommodated in the rice cooker (1) when special rice such as low protein rice (R) or starch rice is cooked. It consists of a colander-shaped auxiliary container (2) and a colander-shaped bottom body (3). The rice cooker (1) is housed in a commercial rice cooker (not shown) with gas fire, IH heating or electric heater, and in the shape of a two-handed pan with a grip portion (12) provided at the opposite position of the outer peripheral surface. Is formed. In addition, when cooking ordinary rice such as white rice, a predetermined amount of ordinary rice and water are put in a rice cooker (1) without using the rice cooking aid (10), and set in a rice cooker to cook rice.

  The colander-shaped auxiliary container (2) is a colander-shaped metal work product in which a number of punching holes (for example, a hole diameter of about 2 mm) are formed as through-holes having a size that allows water to pass but rice grains cannot pass. It is formed slightly smaller than the rice cooker (1) along the inner shape of (1). On the circular bottom of the colander-shaped auxiliary container (2), three downwardly projecting legs (21) are formed at equal positions in the radial direction from the center, and on the outside of the legs (21). Are formed with three convex portions (22) that are convex upward. Further, a flange portion (23) is extended outward from the upper end of the colander-shaped auxiliary container (2). Since these leg part (21), convex part (22) and flange part (23) are formed by bending the colander-shaped auxiliary container (2), etc., it has a through-hole and can circulate water. it can.

  When the colander-shaped auxiliary container (2) is accommodated in the rice cooker (1), as shown in FIG. 2, there is a leg (between the bottom of the rice-shaped auxiliary container (1) and the bottom of the colander-shaped auxiliary container (2). A gap (20a) corresponding to the height of 21) is formed, and the flange portion (23) extends between the inner wall surface of the rice cooker (1) and the outer peripheral surface of the colander-shaped auxiliary container (2). A gap (20b) corresponding to the length is formed. The gap (20a) on the bottom surface side of the rice cooker (1) and the gap (20b) on the inner wall surface side of the rice cooker (1) are formed continuously with the same dimensional spacing. As shown in FIG. Only water (W) is present in 20a) and 20b). Low protein rice (R) is easily gelatinized and scorched early after rice cooking, but low protein rice (R) around the inner surface of the pot should be in contact with the rice cooking pot (1) with a colander-shaped auxiliary container (2). The water (W) in the intervals (20a) and (20b) is conductively heated through the heated water heated by the rice cooker (1). Thereby, the burning of low protein rice (R) can be prevented at the time of cooking rice. In addition, since the dimension of the gap (20a) (20b) can be set uniformly by the leg portion (21) and the flange portion (23), the entire inner peripheral portion of the inner surface of the low protein rice (R) is heated with water. It can be heated uniformly. The dimension of the interval (20a) (20b) is set to 10 mm, for example.

As shown in FIG. 3, the monkey-like raised body (3) has a punching hole (for example, with a hole diameter of approximately about the same size as the monkey-like auxiliary container (2)). 2 mm) is a colander-shaped metal processed product formed over the entire area, and is attached to the center of the bottom of the colander-shaped auxiliary container (2). The monkey-like raised bottom body (3) is composed of a circular top surface (31) and a tapered peripheral surface (32) that slightly expands in diameter from its peripheral edge toward the lower open end (33). ) And the diameter of the lower open end (33) and the protrusion of the protrusion (22) so that the inner peripheral surface of the inner contact surface simultaneously contacts the three protrusions (22) provided at the bottom of the colander-shaped auxiliary container (2). The position is set.
When the monkey-shaped raised bottom body (3) is installed in the center of the bottom of the monkey-shaped auxiliary container (2), as shown in FIG. 2, all the convex parts (22) of the monkey-shaped auxiliary container (2) ), And a space (30) in which only water exists is formed inside the monkey-shaped raised bottom body (3).

The monkey-like raised bottom body (3) is a mode in which the inner peripheral surface of the lower open end (33) is in contact with the three convex portions (22) at the bottom of the monkey-like auxiliary container (2) at the same time, as described above. Since it is installed in the colander-shaped auxiliary container (2), it can be installed with the center of the top surface (31) of the raised bottom body (3) aligned with the center of the bottom of the colander-shaped auxiliary container (2), and in the horizontal direction after installation Therefore, the positioning of the monkey-like raised bottom body (3) to the monkey-like auxiliary container (2) is easy, and the position is maintained. Moreover, when the low protein rice (R) and water (W) are placed in the rice cooker (1) or during cooking, the colander-shaped bottom body (3) is prevented from being displaced from the center of the bottom of the rice cooker (1). can do.
The monkey-like raised bottom body (3) may have a configuration in which the outer peripheral surface of the lower open end (33) is in contact with the convex portions (22) of the monkey-like auxiliary container (2) at the same time.

  And as shown in FIG. 4, when low protein rice (R) is put in the rice cooker (1) in which the colander-shaped auxiliary container (2) and the colander-shaped bottom body (3) are set, The through-holes formed in the auxiliary container (2) and the monkey-like raised bottom body (3) are sized so that the rice grains cannot pass through, so the low protein rice (R) covers the monkey-like raised bottom body (3). It is housed in the colander-shaped auxiliary container (2) and does not fall below the colander-shaped auxiliary container (2) and the colander-shaped raised bottom body (3). Then, a specified amount of water (W) according to the amount of low protein rice (R) is placed in the rice cooker (1). Water (W) passes through the through holes of the colander-shaped auxiliary container (2) and the colander-shaped bottom body (3), and the gap (20a) (20b) between the rice cooker (1) and the colander-shaped auxiliary container (2) It accumulates in the rice cooker (1) including the space (30) inside the colander-shaped bottom body (3).

  Low protein rice (R) is deposited on the upper surface of the monkey-like raised bottom (3), and low protein rice (R) deposited on the top surface (31) of the highest monkey-like raised body (3) is also water. The height (h1) of the monkey-like raised bottom body (3) is set so as to be immersed in (W). That is, the height (h1) of the colander-shaped bottom body (3) is such that the entire low-protein rice (R) is water (W) even if it is the minimum rice amount to the maximum rice amount that can be cooked in this rice cooker (1). ).

  In addition, the diameter of the lower open end (33) of the monkey-like raised bottom (3) is such that the low protein rice (R) in the center of the pot is the water (30) inside the space (30) inside the monkey-like raised bottom (3) ( W) is set to a size necessary for conductive heating with heated water. The diameter is set by setting the radius difference (h0) between the colander-shaped auxiliary container (2) and the colander-shaped raised bottom body (3), which can be regarded as the thickness of the low protein rice (R), in the peripheral portion of the inner surface of the pot. The For example, in the case of a gas rice cooker, this radius difference (h0) is preferably set within a range of 11% to 20% of the pot diameter of the rice cooker (1). It is determined appropriately according to the type of R). Specific examples of the difference in radius (h0) are set to 13% of the pot diameter for 1/3 low protein rice, 11% of the pot diameter for 1/16 low protein rice, and 20% of the pot diameter for starch rice.

  In the accommodation mode shown in FIG. 4, when the rice cooking operation is started by applying heat from the bottom of the rice cooking pot (1) with gas fire, the water (W) in the rice cooking pot (1) is heated, and the arrow in FIG. As shown in Fig. 3, low protein rice (R) in the colander-shaped auxiliary container (2) is conducted while convection through the colander-shaped auxiliary container (2) and the colander-shaped raised bottom body (3). Heat.

  Low protein rice (R) is easy to gelatinize early after cooking, compared to plain rice such as white rice, but low protein rice (R) around the inner surface of the pot is Since the water (W) between the colander-shaped auxiliary container (2) and the rice cooker (1) is not heated directly from the rice cooker (1), it is conductively heated through the heated water. Can prevent burning of low-protein rice (R) on the side.

  The low protein rice (R) at the center of the kettle is conductively heated through the heated water existing in the space (30) inside the monkey-like raised bottom body (3). Therefore, even if the low protein rice (R) around the inner surface of the kettle is gelatinized early after rice cooking and the heat transfer to the kettle center is inhibited, Heat is transferred by the conductive heating through the heating water in the space (30) of the raised bottom body (3) and is cooked. As a result, low protein rice (R) can be cooked evenly from the inner periphery of the pot to the center of the pot. Thus, even when cooking low protein rice (R) with the current deep-bottom rice cooker (1) and rice cooker used for ordinary rice cooking such as white rice, the rice cooking aid (10) is used. Thus, low protein rice (R) can be cooked evenly throughout.

  In addition, the monkey-like raised bottom body (3) is positioned by the convex portion (22) provided at the bottom of the monkey-like auxiliary container (2), so that the monkey-like raised bottom does not move inadvertently in the horizontal direction. The low protein rice (R) deposited on the outer surface of the body (3) can be heated from below by the heating water in the space (30) of the monkey-shaped bottom body (3). And after cooking, if the monkey-like bottom body (3) is removed, the cooked rice of low protein rice (R) can be easily moved away. ) And the colander-like bottom body (3) are separated to facilitate the cleaning operation.

  Next, when cooking low protein rice (R) with a gas rice cooker, the temperature change of the inner surface of the pot and the center of the pot in the cooked rice with and without the rice cooker (10) This is shown in the graph of FIG.

  When the rice cooking aid (10) is not used, as shown in FIG. 6 (A), when rice cooking is started and heating of the rice cooking pot (1) is started, low protein rice (R ), The rate of increase in temperature change at the center of the pot of low protein rice (R) during rice cooking as shown by curve Z is low. The temperature of the low protein rice (R) at the center of the kettle (curve Z) finally reached about 90 ° C., about the same as the temperature at the periphery of the kettle (curve Y) about 14 minutes after the start of heating. Moreover, since the bottom temperature of the rice cooking pot (1) shown by the curve X has risen to about 200 degreeC, it turns out that heat is confined in the inner peripheral part of a pot. From this, it can be seen that when rice is cooked with low protein rice (R), heat transfer to the pot central portion is hindered, and the cooking time for heating the pot central portion at about 90 ° C. is shorter than that of the inner peripheral portion of the pot. As a result, even if the low protein rice (R) in the peripheral part of the inner surface of the pot was cooked well, the whole of the low protein rice (R) in the central part of the pot could not be cooked uniformly.

  On the other hand, when the rice cooking aid (10) is used, as shown in FIG. 6 (B), the temperature (curve Z) at the center of the low protein rice (R) is the heating start of the rice cooking pot (1). About 8 minutes later, the difference between the temperature around the inner surface of the kettle (curve Y) was small and reached about 100 ° C. Moreover, since the bottom temperature (curve X) of the rice cooking pot (1) has risen only to about 145 ° C., it can be seen that the accumulation of heat in the inner peripheral portion of the pot is alleviated. From this, by using the rice cooking aid (10) when cooking low protein rice (R), the center of the pot is fully heated without changing from the inner periphery of the pot, and the low protein rice (R) is uniformly distributed throughout. It turns out that it can cook evenly.

  In the above embodiment, the rice cooking aid (10) is composed of the colander-shaped auxiliary container (2) and the colander-shaped bottom body (3) as separate bodies, but the bottom of the colander-shaped auxiliary container (2) is formed. It is good also as what formed the monkey-like raising bottom body (3) integrally by raising.

Further, the monkey-like raised bottom body (3) of the above embodiment employs a through-hole formed over the entire area of the top surface (31) and the tapered peripheral surface (32). As shown, the top surface (31) is not provided with a through hole, and a shape in which the through hole is formed only on the tapered peripheral surface (32) can also be employed.
Further, in the embodiment, the low protein rice (R) is configured to be cooked by depositing so as to cover the entire top surface (31) and the tapered peripheral surface (32) of the colander-shaped bottom body (3). However, it is also possible to deposit rice in a donut shape only around the tapered peripheral surface (32). In this case, the amount of cooked rice can be set small.

(1) ... rice cooker
(2) ・ ・ ・ Monkey auxiliary container
(3) ・ ・ ・ Monkey-shaped raised body
(10) ・ ・ ・ Cooking aid
(20a) (20b) ・ ・ ・ Interval
(21) ・ ・ ・ Leg
(22) ・ ・ ・ Convex
(23) ・ ・ ・ Flange part
(30) ・ ・ ・ Space
(R) ・ ・ ・ Low protein rice (special rice)
(W) ・ ・ ・ Water

Claims (4)

When cooking special rice such as low protein rice and starch rice, it is a rice cooking aid that is housed in a rice cooker,
It has a colander-shaped bottom body in which a large number of through-holes having a size that allows water to pass and rice grains cannot pass,
The above-mentioned monkey-like raised bottom is a rice cooking aid that is located in the center of the bottom of the rice cooker so that only water exists in the inner space and protrudes upward. In the rice cooking assistance tool of Claim 1,
Provided with a colander-shaped auxiliary container in which a large number of through-holes having a size that allows water to pass and rice grains cannot pass,
The colander-shaped auxiliary container has a shape along the inner surface of the pot, a predetermined gap is formed so that only water exists between the inner surface of the pot, and the colander-shaped bottom body is provided at the center of the bottom. Auxiliary tool. In the rice cooking assistance tool of Claim 2,
The monkey-like raised bottom body and the monkey-like auxiliary container are configured separately,
A plurality of convex portions are formed by projecting upward a part of the bottom of the colander-shaped auxiliary container,
The monkey-like raised body is in the form of the monkey so that all of the convex portions are simultaneously in contact with the inner peripheral surface of the lower open end of the monkey-like raised bottom body or simultaneously with the outer peripheral surface of the lower open end. Rice cooker installed at the bottom of the auxiliary container. In the rice cooking assistance tool of Claim 2 or 3,
The bottom part of the colander-shaped auxiliary container is provided with a leg portion that projects a part of the bottom of the colander-shaped auxiliary container downward, and the upper end of the colander-shaped auxiliary container is provided with the upper end of the colander-shaped auxiliary container outward. A rice cooker provided with a flange extending to the top.

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