JPH0722548B2 - How to cook rice in a rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement in a heating method for cooking brown rice or porridge with a rice cooker.

[Prior Art] Rice cookers, which heat and cook rice using electric power, have become widespread nationwide and have become an indispensable appliance in the kitchen of each household. For that reason, the enthusiasm of each manufacturer for developing the technology is wonderful, and it literally takes on the stance of day by day.

The biggest aim of development is how to cook rice into delicious rice, and for that reason, continuous development efforts are being made in every detail. In particular, recently, in order to improve the taste of rice, it has been effective to heat the inner kettle containing rice not only from below but also from above. In addition, a rice cooking method in which the output of the lid heater is strengthened and the lid heater is used to heat the rice from above during rice cooking or muramura is adopted.
Therefore, the output of the lid heater is 10 watts from the conventional
Enhanced to 60-80 watts.

Fig. 2 is a sectional view of the rice cooker, in which 1 is an outer case and 2
Is a lid, 3 is an inner kettle, 4 is a bottom heater, 5 is a lid heater, 6 is a body heater, 7 is a radiator plate, 8 is an inner lid, 9 is rice, and 10 is water.

When cooking cooked rice using the rice cooker, the lid heater 5 is used together with the bottom heater 4 to heat the rice.
However, when cooking rice porridge and brown rice, the situation is somewhat different. FIG. 3 is a heating curve for cooking rice porridge, for example, and shows the temperature change of the rice porridge with time. When a predetermined amount of rice and water are put in the inner kettle 3 and the switch is turned on at 0 point, only the bottom heater 4 is turned on and heating is performed with a large output (high heat). At this time, the lid heater 5 is not used. When the temperature of the water rises due to the heating of the bottom heater 4 and boils at the point P, the thermistor arranged at the bottom detects the boiling, and the heating amount control means lowers the output of the bottom heater 4 to heat it by low heat. When the predetermined time t1 elapses, the output of the bottom heater 4 is made almost zero by the action of the timer, and the unevenness process is started.

Even when brown rice is cooked, the lid heater 5 is not used for cooking rice,
Heat and cook for a long time with the low-heat bottom heater 4.

When cooking rice porridge and brown rice in this way, the characteristic is that the lid heater is not used during rice cooking and only the bottom heater is used to cook over low heat for a long time.

[Problems to be Solved by the Invention] By the way, when brown rice or porridge is cooked by the rice cooker,
In the case of brown rice and porridge, there is more water than ordinary rice,
There were many spills and splatters when cooking rice, and when the lid was opened at the end of rice cooking, a drooping phenomenon occurred, which was a problem for some time.

The present invention has been made to solve the above problems,
Even when porridge or brown rice is cooked, it is intended to provide a heating method that does not cause spillage or splattering with the minimum required power consumption.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, when cooking porridge or brown rice, a predetermined amount of brown rice or rice and water are stored in an inner kettle, and a switch is turned on. After that, when the boiling of water is detected, the output of the bottom heater is lowered to reduce the heat and the lid heater is turned on for a predetermined time by a timer.

[Operation] As described above, when heating by the bottom heater of low heat after boiling water, by heating by the lid heater for a predetermined time,
The water in the upper part of the inner kettle evaporates rapidly, so that phenomena such as spillage do not occur.

[Examples of the Invention] FIG. 1 shows a heating curve which is an example of the present invention, in which (a) is a porridge and (b) is a heating curve for brown rice cooking.

As shown in the figure, when the porridge is cooked, when the thermistor detects boiling of water at point P, the output of the bottom heater 4 is reduced to a low heat, and at the same time, the lid heater is turned on. After the elapse of a predetermined time t3, the lid heater 5 is turned off by the timer, and the low heat bottom heater 4
The heating is continued only by itself, and after a predetermined time t2, the bottom heater 4 is turned off, and after that, the state of unevenness is entered. The heating time t2 by the low-heat bottom heater 4 and the heating time t3 by the lid heater 5 should be appropriately determined according to the softness of the porridge and other conditions.

In addition, when cooking brown rice, after the boiling is detected, the output of the bottom heater 4 is lowered to reduce the heat, and the lid heater 5 is turned on to heat the lid heater 5 from above for a predetermined time. When the heating of the lid heater 5 is stopped and the low-heat heating by the bottom heater 4 progresses,
Eventually, the temperature of the brown rice rises sharply Q because all the water to be evaporated finishes boiling. When the thermistor detects this temperature rise, it turns off the bottom heater 4 and then enters the state of unevenness. The heating time t5 by the lid heater 5 and the low heat heating time t4 by the bottom heater 4 should be selected according to the amount of cooked rice and the quality of brown rice.

During heating on a low heat by the heater 4, the lid heater 5 heats the cooked rice from above, so that the boiling of water is assisted and the phenomenon of spillage is eliminated.

[Advantages of the Invention] In the present invention, when rice porridge or brown rice is cooked with a rice cooker, heating is performed by the lid heater for a predetermined time in addition to the low heat heating of the bottom heater after boiling, so that the minimum power consumption is required The lid heater can accelerate the evaporation of water and prevent the phenomenon of spillage and scattering. It was also possible to prevent the phenomenon of swaying when the lid was opened.

[Brief description of drawings]

FIG. 1 (a) is a heating curve for cooking porridge which is an embodiment of the present invention, FIG. 1 (b) is a heating curve for cooking brown rice, and FIG. 2 is a partial sectional view of a rice cooker. , FIG. 3 is a heating curve for cooking conventional porridge. In the figure, 3 is an inner kettle, 4 is a bottom heater, and 5 is a lid heater. The same reference numerals in the drawings indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masakazu Kobayashi 1728 Omaeda, Hanazono-cho, Oza-gun, Saitama 1 Mitsubishi Electric Home Appliances Co., Ltd. Address 1 Mitsubishi Electric Home Equipment Co., Ltd. (56) Reference JP-A-63-150023 (JP, A)

Claims (1)

[Claims] 1. A bottom heater disposed below the inner kettle, a lid heater disposed above the inner kettle, and boiling detection means.
In the method of cooking rice with a heating amount control means, when boiling rice or rice porridge, boiling is detected by the boiling detection means, and the heating amount control means bottoms the time from boiling detection to cooking. A rice cooking method for a rice cooker, characterized in that the heater is controlled to a low heat and the lid heater is controlled to generate heat only within a certain time after the boiling is detected.