JPH0347086B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rice cooking method using a rice cooker that can be set with a timer.

Conventional technology The conventional method of cooking rice in a rice cooker with a timer is to select a rice cooking pattern as shown in Fig. 3, and the reserved time when using a time switch is set at the time when the rice has finished cooking and the rice has been stirred. , Compare the rice cooking start time based on the difference between the current time and the reserved time, and use the timer set reference time (2 hours) as a reference. If it is longer than that, the rice cooking pattern is set (no water supply step to the rice), if it is less than that, the rice cooking pattern is selected. Rice is cooked using a rice cooking pattern (including a process of watering the rice). That is, in step 1, it is determined whether the set time of the timer set is more than the reference time (2 hours), and if it is more than the reference time,
When the predetermined time A in 2 is not reached, proceed to the rice cooking pattern in 3. If the time is less than the predetermined time B in 4, proceed to the rice cooking pattern in 5. When both are 6, the sensor indicates the rice cooking end temperature is 134℃. When detected, proceed to the additional cooking pattern 7. In such rice cooking pattern selection, the predetermined time A is set to 45 minutes before the scheduled time, and the predetermined time B is set to 54 minutes before the scheduled time so that the scheduled time including the rice cooking and cooking time is a fixed time.

Problems to be Solved by the Invention In such a conventional rice cooker, the actual water supply time for rice is the time that is calculated by subtracting the time including unevenness from the start of rice cooking to the end of rice cooking from the timer set time. Depending on the reserved time, the rice cooking pattern was used to select whether or not to add water to the rice during the process of turning the rice into delicious rice.

However, consumers' current demand for rice cookers is not only to cook delicious rice, but also to have a rice cooker that does not burn. Burning when cooking rice in a stove has an important meaning in itself, and the melanoidin reaction has the effect of making the rice more delicious due to its fragrant aroma.However, consumers these days dislike this burntness, and they prefer products that do not cause burntness. I'm looking for. However, the process of cooking rice in a rice cooker is a reaction between rice and water, and as mentioned above, the rice cooker finishes cooking by detecting the temperature when the water is gone and the temperature suddenly rises from around 100℃. It has been said that the burnt condition changes depending on the temperature change at the bottom of the pot and the elapsed time when the temperature suddenly rises from 100℃. It is said that when cooking rice immediately after washing, even if you set the cooking end temperature and additional cooking power to prevent burning, the water and rice stored in the pot will cause the starch to dissolve from the rice. It settles on the bottom of the pot, and burns occur due to the temperature and elapsed time of these precipitates after the rice is cooked, and also due to the temperature rise due to additional cooking power. This char is different from normal char on rice because it is starchy char that has melted away, and it takes a lower temperature and time to form than the char on the rice itself.

In addition, the longer the timer is set, the more sediment there is and the stronger the burns become.Therefore, there is a difference in the occurrence of burns when the rice is cooked immediately after washing and when the timer is used. There is a problem with storing it away.

The present invention solves these conventional problems, and aims to provide a timer-equipped rice cooker that does not cause burning even when the timer is set.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a temperature detection section that detects the temperature of the bottom of a pot that stores rice, a heating section that heats the bottom of the pot, and a timer. A rice cooking method using a rice cooker, which is equipped with a timer section for setting and a control section for controlling these, in which at least one of the rice cooking end temperature and the amount of electricity for additional cooking is changed depending on the timer setting time of the timer section. It is something.

Effect With the above configuration, when the timer is set, the rice and water stored in the pot react with each other over time, and the rice absorbs water and increases the moisture content of the rice. At the same time, the water also absorbs starch from the rice. The rice will melt and settle to the bottom of the pot, but the cooking end temperature can be lowered according to the timer setting to reach the temperature of 110, which is generally considered to be the temperature at which burning occurs.
In order to prevent burning by reducing the time over ℃ and the peak temperature value, and at the same time to remove excess water that adheres to the surface of the rice grains during the unevenness after cooking, to make the rice look better. Taking into consideration that additional cooking, which has become popular in recent years, causes the bottom of the pot to heat up again and cause burnt parts, the power consumption for additional cooking is reduced according to the timer setting to prevent burning. In this way, by changing either or both of the rice finishing temperature and the additional cooking power consumption, we can prevent the bottom of the pot from scorching the finished rice and adjust the temperature of the bottom of the pot when the timer is used and when it is not in use. The situation can be equalized.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the drawings. FIG. 1 is a flowchart illustrating the operation of an embodiment of the present invention. In step 11, check whether the timer set time is longer than the reference time (2 hours) or not.
In step 2, determine whether it is longer than another standard time (8 hours),
If the timer set time is 8 hours or more,
When the predetermined time A of 13 is reached, the rice cooking pattern 14 is started, and at 15 the sensor detects the rice cooking end temperature.
When the temperature is detected at 110℃, proceed to the 16th additional cooking pattern and reduce the additional cooking power to 1/1 of the power of the rice cooking heater.
Set to 2 and turn on the electricity for 1 minute to add additional cooking.

If the timer set time is 2 hours or more but less than 8 hours, when the predetermined time B in 17 is reached, the rice cooking pattern in 18 is started, and when the sensor detects the rice cooking end temperature of 120°C in 19, the rice cooking pattern in 20 is started. Proceed to the pattern, set the additional cooking power to 1/2 of the power of the rice cooking heater, and turn on the power for 3 minutes to cook additional rice.

In addition, if the timer set time is less than 2 hours, when the predetermined time B of 21 is reached, 22
The process proceeds to the rice cooking pattern 23, and when the sensor detects the rice cooking end temperature of 134° C., the process proceeds to the additional cooking pattern 24, in which additional cooking power is applied to the rice heater for another 3 minutes.

The respective values for the rice cooking end temperatures 15, 19, and 23 and the additional cooking patterns 16, 20, and 24 shown here are based on the timer setting time because the way the rice burns varies depending on the heating structure of the rice cooker itself. These changes are made according to the following.

FIG. 2 is a block diagram showing the temperature detection means 25.
The temperature of the bottom of the pot is detected by a signal from a sensor 27 that contacts the bottom of the pot 26, and the heating means 28 uses a cast-in heater 29 that contacts the bottom of the pot 26 to heat the rice 30 and water 31 stored in the pot 24. heat up. This heating pattern is such that the rice cooking end temperature is controlled by the control means 33 according to the timer setting time set by the timer means 32 and the amount of electric power for additional cooking.

Effects of the Invention As described above, according to the present invention, when rice is cooked using a timer, the starch that is eluted from the rice and precipitated at the bottom of the pot during the soaking time in the pot is reduced over time before the rice starts cooking. Taking into account that charring occurs at a lower temperature than normal rice charring and in a short period of time, the end temperature of rice and the temperature after the end of cooking are determined by the elapsed time of soaking water in the pot, which is determined by the timer setting time. By changing the amount of electric power for additional cooking, it is possible to prevent burnt rice, and even if the rice is cooked immediately after washing or by using a timer, the degree of burntness can be equalized.

[Brief explanation of drawings]

FIG. 1 is a flowchart for explaining the operation of an embodiment of the present invention, FIG. 2 is a block diagram, and FIG. 3 is a flowchart for explaining the operation of a conventional example. 11, 12... Timer set setting time determination step, 13, 17, 21... Predetermined time determination step, 1
4, 18, 22...Rice cooking pattern, 15, 19,
23...Rice-cooking end temperature determination step, 16, 20, 2
4...Additional cooking pattern, 27...Temperature sensor,
29...Heater.

Claims (1)

[Claims] 1. A method for cooking rice using a rice cooker that includes a temperature detection section that detects the temperature of the bottom of a pot that stores rice, a heating section that heats the bottom of the pot, a timer section that sets a timer, and a control section that controls these. A rice cooking method that changes at least one of the rice cooking end temperature and the amount of electricity for additional cooking according to a timer setting time of a timer section.