JP2005080683A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker capable of preventing occurrence of boiling over when cooking with a wrong water quantity while securing the taste of cooked rice when cooking rice with a normal water quantity in the case a user cooks a large quantity of rice. <P>SOLUTION: The rice cooker is provided with a control means 6 which measures a time from the detection of a first prescribed temperature by a pot temperature detection means 3 to the detection of a second prescribed temperature by a lid temperature detection means 4 as a rice-cooking quantity judging time, and controls a heating means 2 according to the rice cooking quantity judged by the measured rice-cooking quantity judging time. When the rice-cooking quantity judging time is longer than the first prescribed time, the control means 6 controls the heating means 2 so as to cook the rice while suppressing heating output in following rice cooking processes. Thus, when a user erroneously sets a little larger quantity of water in the case of cooking a large quantity of rice, the rice is cooked while suppressing the heating output to prevent the occurrence of boiling over. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rice cooker used mainly in general households.

  Conventionally, in this type of general rice cooker, rice cooking processes of a plurality of rice cooking menus such as white rice and porridge are stored, and cooking is performed by controlling the heating output according to the rice cooking process. In general, the rice cooking process includes a water absorption process, a smoothing process, a rice cooking amount determination process, a boiling maintenance process, and an unevenness process. When rice cooking is started, a water absorption process is first performed. Here, as preparation for cooking rice, the water is kept at a constant temperature (about 50 ° C.) to allow the rice to absorb water sufficiently. Next, the process proceeds to a leveling process in which heating is performed with a high heating output, and heating is performed. When the leveling process ends, the process proceeds to the next rice cooking amount determination process. In the rice cooking amount determination step, while maintaining a high heating output, the time until boiling is measured using the temperature detected by the pan temperature detection means and the lid temperature detection means, thereby determining the rice cooking amount. And in a next boiling maintenance process, according to the determined rice cooking amount, a heating output is adjusted and boiling maintenance is performed. At this time, when the water in the pan is reduced, the temperature of the pan gradually rises, and when the predetermined temperature is reached, the boiling maintaining step is terminated. And finally, it shifts to an unevenness process in which the inside of the pan is uniformly blended. The unevenness process ends when a predetermined time elapses, and the rice cooking ends.

Thus, when cooking rice, after a water absorption process, it heats and boils with a high heating output to a rice cooking amount determination process, and cooks rice with the heating output according to the amount of rice cooking after that. However, in the conventional rice cooking process, in the boiling maintenance process, especially when moving from the cooked rice amount determination process to the boiling maintenance process, which is boiled at a high heating output, a rice ball (a mixture of hot water and starch) occurs from the boiling water. Then, it reached the vicinity of the lid of the container of the rice cooker, and there was a problem that while the rice bowl continued to boil, it spilled from the hole for steam venting opened in the lid of the container. With respect to this problem, in the conventional rice cooker, when the determined amount of cooked rice is equal to or greater than the predetermined amount of cooked rice, the heating output is decreased for a predetermined time to perform rice cooking (see, for example, Patent Document 1). ).
JP-A-3-202024

  However, with conventional rice cookers, it is not possible to detect an abnormality in the amount of water, so cooking with a normal amount of water is effective, but when the user sets a large amount of water and starts cooking, a particularly large amount of rice is cooked. When cooking rice, if the time to reduce the heating output is short, spilling will occur, and conversely, if it is long, spilling can be prevented, but now the taste of rice when cooking with normal water volume There was a problem of dropping.

  The present invention solves the above-described conventional problems, and can prevent the occurrence of spilling when the amount of water is incorrect while securing the taste of rice with a normal amount of water when cooking with a large amount of rice. The purpose is to provide rice cookers.

  In order to solve the above-mentioned conventional problems, the rice cooker of the present invention detects the first predetermined temperature at which the pan temperature detecting means is preset, and then the lid temperature detecting means is preset at the second. The time until the predetermined temperature is detected is measured as the rice cooking amount determination time, and includes a control unit that controls the heating unit according to the rice cooking amount determined by the measured rice cooking amount determination time. Is longer than the first predetermined time set in advance, it is determined that the amount of water is abnormal, and in the subsequent rice cooking process, cooking is performed while suppressing the heating output.

  Thereby, when a user cooks a large amount of rice, if the amount of water is set too much by mistake, the amount of water abnormality is determined at the time of determining the amount of cooking, and the rice is cooked while suppressing the heating output.

  When the user cooks a large amount of rice, the rice cooker of the present invention can prevent the occurrence of spillage when the amount of water is incorrect while securing the taste of cooking with a normal amount of water.

  1st invention detects the temperature of the lid | cover which covers the pan | casing which is detachably accommodated in a main body, the heating means for heating the pan, the pan temperature detection means which detects the temperature of a pan, and the upper part of a main body A lid temperature detecting means that detects the first predetermined temperature that is set in advance after the start of rice cooking, and then the second predetermined temperature that the lid temperature detecting means is set in advance. The time until detection is measured as the rice cooking amount determination time, and the heating unit is controlled according to the rice cooking amount determination means for determining the rice cooking amount based on the measured rice cooking amount determination time and the rice cooking amount determined by the rice cooking amount determination means. Control means, and when the rice cooking amount determination time is longer than a first predetermined time set in advance, in the subsequent rice cooking process, the heating means performs cooking while suppressing heating output. Control When the user cooks a large amount of cooked rice, when the user cooks a large amount of rice while ensuring the taste of cooking with normal water, An abnormality in the amount of water is determined, and the rice is cooked while suppressing the heating output, and the occurrence of spilling can be prevented.

  2nd invention is equipped with the alerting | reporting means which performs alerting | reporting operation | movement especially in 1st invention, and when a control means is longer than the 1st predetermined time set beforehand, it will notify that. By controlling the notification means so as to notify, when the user cooks a large amount of cooked rice, if the amount of water is mistakenly set so that it is determined that the amount of water is abnormal, that fact will be notified. In addition, it is possible to cause the user to audibly recognize that the taste of rice is inferior to normal due to an abnormal amount of water, and to call attention to the amount of water in the next rice cooking.

  3rd invention is equipped with the display means which performs display operation | movement especially in 1st or 2nd invention, and when a control means is longer than the 1st predetermined time preset rice cooking amount determination time, By controlling the display means to display that effect, when the user cooks a large amount of cooked rice, if it is determined that the water amount is abnormal because the amount of water is set too much, that effect is displayed. Therefore, the user can visually recognize that the taste of rice is inferior to normal due to an abnormal amount of water, and can call attention to the amount of water in the next cooking.

  The fourth invention is characterized in that, in particular, in the first to third inventions, the control means forcibly ends the rice cooking when the rice cooking amount determination time is longer than a second predetermined time set in advance. By doing so, when the user cooks a large amount of rice, if the water amount is set too much and the water amount is determined to be abnormal, the rice will be forcibly terminated, preventing the occurrence of spillage. It can eliminate the waste of electricity to cook rice with insufficient taste.

  In a fifth aspect of the invention, particularly in the fourth aspect of the invention, when the rice cooking amount determination time is longer than a preset second predetermined time, the control means controls the notification means so as to notify that fact. When the user cooks the maximum amount of rice cooked, the amount of water is set too much, so it is determined that the amount of water is abnormal, and when cooking is forcibly terminated, that fact will be notified. In order to prevent the occurrence of spillage and to eliminate the waste of power to cook the rice with insufficient taste, let the user audibly recognize that the rice was forcibly terminated, and the amount of water in the next rice cooking You can call attention.

  In a sixth aspect of the invention, particularly in the fourth or fifth aspect of the invention, when the rice cooking amount determination time is longer than a second predetermined time set in advance, the control means displays a display means to display that effect. It is characterized by controlling, when the user cooks the maximum amount of rice cooked, the amount of water is set too much, so it is determined that the amount of water is abnormal and when cooking is forcibly terminated, a message to that effect is displayed In order to prevent the occurrence of spilling and to avoid the waste of power to cook rice with insufficient taste, let the user visually recognize that cooking was forcibly terminated, and at the next cooking It is possible to call attention to the amount of water.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1: shows the block diagram of the rice cooker in the 1st Embodiment of this invention. FIG. 2 shows a schematic cross-sectional view of the rice cooker according to the first embodiment of the present invention.

  In FIG. 2, the main body 9 shows a rice cooker, is equipped with a detachable pot 1 and has a heating coil 13 for heating the pot 1. The pan 1 is made of a magnetic material such as stainless steel or iron, and the heating coil 13 includes an inner coil 11 disposed outside the bottom surface of the protective frame 15 and an outer coil 12 disposed on the outer periphery thereof. The heating means 2 is configured together with the inverter 14 for supplying a high-frequency current to the heating coil 13 configured on the control board 16. The heating coil 13 generates an alternating magnetic field by the high-frequency current supplied by the inverter 14 and induction-heats the pan 1 with this alternating magnetic field.

  The pan temperature detecting means 3 is a thermistor that detects the temperature of the pan 1 and detects the temperature based on a resistance value. The lid temperature detecting means 4 is a thermistor that detects the temperature of the openable / closable lid 10 that covers the upper part of the main body, and detects the temperature based on the resistance value.

  In FIG. 1, the rice cooking amount determination means 5 and the control means 6 are constituted by a microcomputer 17 mounted on a control board 16. The rice cooking amount determination means 5 detects the first predetermined temperature (in this embodiment, 80 ° C.) that the pan temperature detection means 3 has set in advance after the start of cooking, and then the lid temperature detection means 4. Is measured as a rice cooking amount determination time, and the amount of rice cooking is determined by the measured rice cooking amount determination time. I am doing so. The control means 6 controls the heating output of the heating means 2 based on the rice cooking amount determined by the rice cooking amount determination means 5 and a predetermined rice cooking sequence, and further, a buzzer (not shown) as the notification means 7 and a display means. 8 (not shown) is controlled.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are hereafter demonstrated using the flowchart of FIG. 3, and the figure of the rice cooking process of FIG.

  First, it is determined whether or not there is a request to start cooking in step S1 of FIG. If there exists a request | requirement, it will progress to step S2 and will start cooking rice. If there is no request, step S1 is repeated until there is a request. Step S2 is a water absorption step, and the heating means 2 is controlled by the control means 6 as shown in FIG. 4, and the water temperature is maintained at a temperature (about 50 ° C.) just before the start of gelatinization of rice starch for a certain time. In this way, the rice grains are sufficiently absorbed in a short time. If a water absorption process is complete | finished, it will progress to the leveling process of step S3. Here, heating is performed at a high heating output. In the next step S4, the pan temperature detecting means 3 detects the pan temperature and determines whether or not the temperature exceeds 80 ° C. If not, step S4 is repeated until it exceeds. If bottom temperature exceeds 80 degreeC, it will progress to a determination process and will measure rice cooking amount determination time by step S5. Next, in step S6, the lid temperature detecting means 4 detects the lid temperature and determines whether or not the temperature exceeds 70 ° C. If it does not exceed, it will return to step S5 and will continue measurement of the rice cooking amount determination time until it exceeds. If a lid | cover temperature exceeds 70 degreeC, it will progress to following step S7 and will determine the amount of rice cooking. The rice cooking amount is determined based on the measured rice cooking amount determination time. In this embodiment, the amount of rice cooking is 5 steps (levels 1 to 5), level 1 when the rice cooking amount determination time is less than 160 seconds, level 2, when it is 160 seconds to less than 210 seconds, level 2, 210 seconds to 250 seconds If it is less than 500 seconds, it is level 3. If it is less than 500 seconds, it is level 4. If it is less than 500 seconds, it is level 5. For example, in the case of a rice cooker that cooks 1 kg, level 1 is less than 3 go, level 2 is 3 go or more and less than 4 go, level 3 is 4 go or more and less than 5 go, level 4 is 5 go or more and less than 8 go, level 5 Corresponds to 8 or more. When the amount of cooked rice is determined, it is determined in the next step S8 whether the cooked rice amount determination time has exceeded the first predetermined time. In the present embodiment, the first predetermined time is 660 seconds. In the case of a rice cooker cooked with 1 kg, this is the rice cooking amount judgment time when cooking with a 10-meal rice amount in a state where 200 ml of water has been added from the normal water amount. If this time is not exceeded, the process proceeds to step S10 as it is, but if it exceeds, it is determined that the amount of water is abnormal, and the amount of cooked rice is corrected in step S9. Here, the cooking rice level is corrected from 5 to 3. Then, the process proceeds to the next step S10. Step S <b> 10 is a boiling maintaining step, and the heating means 2 is controlled in accordance with the amount of cooked rice determined here or corrected after determination. For example, when the rice cooking level is 5, as shown by the solid line in FIG. 3 (A), the boiling is maintained at a high heating output, and when the rice cooking level is 3, the boiling level is as shown by the dotted line in (B). Maintain the boiling by reducing the heating output. That is, the lower the cooked rice level, the smaller the amount of heating required for maintaining the boiling, so the boiling is maintained with the heating output suppressed. Here, when it is determined that the amount of water is abnormal, the amount of cooked rice is corrected, and thus the optimum amount of heating according to the actual amount of cooked rice is not achieved. Since the rice cake that has been wiped up to the vicinity of the lid 10 is lowered to the vicinity of the water surface in the pot 1, the occurrence of spilling can be prevented. And if the water in a pan runs out and the pan temperature rises to a predetermined cooking temperature (in this embodiment, it is set to 130 ° C.), the process proceeds to the unevenness process in which the inside of the pan is uniformly blended in step S11. The unevenness process ends when a predetermined time elapses, and the rice cooking ends.

  As described above, in the present embodiment, after the pan temperature detecting means 3 detects the first predetermined temperature set in advance, the lid temperature detecting means 4 sets the second predetermined temperature set in advance. The time until detection is measured as a rice cooking amount determination time, and includes a control unit 6 that controls the heating unit 2 according to the rice cooking amount determined by the measured rice cooking amount determination time. Is longer than the first predetermined time set in advance, it is determined that the amount of water is abnormal, and in the subsequent rice cooking process, the user controls the heating means 2 so as to cook rice while suppressing the heating output. When cooking a large amount of cooked rice, while ensuring the taste when cooking with normal water volume, if you set a large amount of water by mistake, determine the amount of water abnormality when determining the amount of rice cooked, and suppress the heating output thereafter Cooking rice Become a Ukoto, it is possible to prevent the occurrence of boiling over.

  In the present embodiment, the heating coil 13 is used as the heating means 2, but this may be a heating method using a heater, a gas combustion appliance, or the like. Any method can be used.

  Moreover, in this Embodiment, although the rice cooking amount judgment time at the time of cooking in the state which was 200 ml water-hydrated from the time of normal water quantity with the amount of rice cooking of 10 go as 1st predetermined time was set, this is the maximum with normal water quantity What is necessary is just the time longer than the rice cooking amount determination time when cooking rice cooking amount.

(Embodiment 2)
FIG. 5: is the figure which showed the operation | movement flowchart of the rice cooker of the 2nd Embodiment of this invention.

  In the configuration of the control unit 6 of the first embodiment, when the rice cooking amount determination time is longer than the first predetermined time set in advance, the notification unit 7 determines that the water amount is abnormal and notifies that effect. Is controlled. The other configurations are the same as those in the first embodiment, and will be omitted.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using the flowchart of FIG. The operation from step S1 to step S11 is the same as the operation in the first embodiment, and a description thereof will be omitted.

  After correcting the amount of cooked rice in step S9, the buzzer as the notification means 7 is sounded for a predetermined time in step S12, and the process proceeds to the next step S10.

  As described above, in the present embodiment, when the rice cooking amount determination time is longer than the first predetermined time set in advance, a large amount of users can be obtained by controlling the notification means to notify that effect. When cooking the amount of cooked rice, when it was determined that the amount of water was incorrect and the water amount was abnormal, it would be notified, and because the amount of water was abnormal, the taste of rice was inferior than usual The user can be audibly recognized, and can be alerted to the amount of water in the next rice cooking.

  In this embodiment, a buzzer is used for the notification means 7, but this causes the user to audibly recognize that the taste of rice is inferior to normal due to an abnormal amount of water. Any configuration that can call attention to the amount of water is acceptable.

(Embodiment 3)
FIG. 6 is an operation flowchart of the rice cooker according to the third embodiment of the present invention.

  In the control means 6 of the first embodiment, when the rice cooking amount determination time is longer than the first predetermined time set in advance, the display means 8 determines that the water amount is abnormal and displays that fact. Is controlled. The other configurations are the same as those in the first embodiment, and will be omitted.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using the flowchart of FIG. The operation from step S1 to step S11 is the same as the operation in the first embodiment, and a description thereof will be omitted.

  After correcting the amount of cooked rice in step S9, in step S13, it is displayed on the LCD as the display means 8 that the water amount is abnormal, and the process proceeds to the next step S10.

  As described above, in the present embodiment, when the rice cooking amount determination time is longer than the first predetermined time set in advance, the user controls the display unit 8 so as to display the fact. When a large amount of rice is cooked, if it is determined that the amount of water has been set too high, it will be displayed as such, and the taste of the rice will be inferior to normal due to an abnormal amount of water. Can be visually recognized by the user, and attention to the amount of water in the next rice cooking can be urged.

  In the present embodiment, an LCD is used as the display means 8, but this allows the user to visually recognize that the taste of rice is inferior to normal due to an abnormal amount of water. Any configuration that can call attention to the amount of water is acceptable.

(Embodiment 4)
FIG. 7: is the figure which showed the operation | movement flowchart of the rice cooker of the 4th Embodiment of this invention.

  In the control means 6 of Embodiment 1, when the rice cooking amount determination time is longer than the preset second predetermined time, it is determined that the amount of water is abnormal and the rice cooking is forcibly terminated. Is. The other configurations are the same as those in the first embodiment, and will be omitted.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated using the flowchart of FIG. The operation from step S1 to step S11 is the same as the operation in the first embodiment, and a description thereof will be omitted.

  After determining the amount of cooked rice in step S7, it is determined in step S14 whether the cooked rice amount determination time has exceeded the second predetermined time. In the present embodiment, the second predetermined time is 800 seconds. In the case of a rice cooker cooked with 1 kg, this is the rice cooking amount determination time when the rice is cooked in a state where 300 ml of water is added with a 10-yet amount of rice from the normal time. If this time is not exceeded, the process proceeds to step S8 as it is, but if it exceeds, it is determined that the amount of water is abnormal, and rice cooking is terminated.

  As described above, in the present embodiment, when the rice cooking amount determination time is longer than the second predetermined time set in advance, it is determined that the water amount is abnormal, and the user is forced to end the rice cooking. When cooking a large amount of rice, if it is determined that the amount of water is incorrect and the water amount is abnormal, the rice will be forcibly terminated, preventing the occurrence of spilling and insufficiently cooked rice This eliminates the waste of electric power.

  In the present embodiment, the second predetermined time is set longer than the first predetermined time. However, this may be the same as the first predetermined time. In short, when the maximum amount of rice is cooked with the normal amount of water. It suffices if the time is longer than the rice cooking amount determination time.

(Embodiment 5)
FIG. 8: is the figure which showed the operation | movement flowchart of the rice cooker of the 5th Embodiment of this invention.

  The configuration is such that, in the control means 6 of the first embodiment, when the rice cooking amount determination time is longer than the second predetermined time set in advance, the notification means is controlled so as to notify that fact. is there. The other configurations are the same as those in the first embodiment, and will be omitted.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using the flowchart of FIG. The operation from step S1 to step S11 is the same as the operation in the first embodiment, and a description thereof will be omitted.

  When the rice cooking amount determination time exceeds the second predetermined time in step S14, it is determined that the amount of water is abnormal, and in step S15, the buzzer as the notification means 7 is sounded for a predetermined time, and the rice cooking is terminated.

  As described above, in the present embodiment, when the rice cooking amount determination time is longer than the preset second predetermined time, the user can control the notification means 7 so as to notify that fact. When cooking a large amount of rice, when the amount of water is set incorrectly, it is determined that the amount of water is abnormal, and when the rice is forcibly terminated, this will be notified, preventing the occurrence of spilling and insufficient The user can be audibly recognized that the cooking has been forcibly terminated in order to eliminate the waste of power to cook the rice with a good taste, and the user can be alerted to the amount of water in the next cooking.

  In the present embodiment, a buzzer is used for the notification means 7, but this prevents the user from spilling over and forcibly cooks the rice in order to eliminate the waste of power for cooking rice with insufficient taste. Any configuration may be used as long as it allows the user to audibly recognize that it has been terminated and to call attention to the amount of water in the next rice cooking.

(Embodiment 6)
FIG. 9: is the figure which showed the operation | movement flowchart of the rice cooker of the 6th Embodiment of this invention.

  The configuration is such that when the rice cooking amount determination time is longer than the second predetermined time set in advance in the control means 6 of the first embodiment, the display means 8 is controlled to display that effect. It is. The other configurations are the same as those in the first embodiment, and will be omitted.

  About the rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using the flowchart of FIG. The operation from step S1 to step S11 is the same as the operation in the first embodiment, and a description thereof will be omitted.

  When the rice cooking amount determination time exceeds the second predetermined time in step S14, it is determined that the amount of water is abnormal, and in step S16, the LCD that is the display unit 8 displays that the water amount is abnormal, and the rice cooking is terminated.

  As described above, in the present embodiment, when the rice cooking amount determination time is longer than the preset second predetermined time, the user controls the display unit 8 so as to display the fact. When cooking a large amount of rice, when the amount of water is set too much by mistake, it is determined that the amount of water is abnormal, and when the rice is forcibly terminated, this will be displayed, preventing the occurrence of spilling and insufficient It is possible to make the user visually recognize that rice cooking has been forcibly terminated in order to eliminate the waste of electric power of cooking rice with a good taste, and to call attention to the amount of water in the next rice cooking.

  In the present embodiment, an LCD is used as the display means 8, but this prevents the user from spilling over and forcibly cooks the rice in order to eliminate the waste of power for cooking rice with insufficient taste. Any configuration can be used as long as it allows the user to visually recognize that the process has been completed, and can call attention to the amount of water in the next cooking.

  As described above, the present invention can prevent spilling due to an error in the amount of water when cooking a large amount of rice, so it can be applied not only to home use but also to rice cookers for business use.

The block diagram of the rice cooker in Embodiment 1 of this invention. Typical sectional drawing of the rice cooker in Embodiment 1 of this invention. Operation flowchart of rice cooker in Embodiment 1 of the present invention The figure which shows the rice cooking process in Embodiment 1 of this invention. Operation flowchart of rice cooker in Embodiment 2 of the present invention Operation flowchart of rice cooker in Embodiment 3 of the present invention Operation flowchart of rice cooker in embodiment 4 of the present invention Operation flowchart of rice cooker in embodiment 5 of the present invention Operation flowchart of rice cooker in Embodiment 6 of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pan 2 Heating means 3 Pan temperature detection means 4 Lid temperature detection means 5 Rice cooking amount determination means 6 Control means 7 Notification means 8 Display means 9 Main body 10 Lid

Claims (6)

A pan detachably stored in the main body, a heating means for heating the pan, a pan temperature detecting means for detecting the temperature of the pan, and a lid temperature detecting means for detecting the temperature of the lid covering the upper part of the main body After the start of cooking, the time from when the pan temperature detecting means detects the preset first predetermined temperature until the lid temperature detecting means detects the preset second predetermined temperature is set. A rice cooking amount determination means that measures the rice cooking amount determination time and determines the rice cooking amount by the measured rice cooking amount determination time, and a control means that controls the heating means according to the rice cooking amount determined by the rice cooking amount determination means, The said control means controls the said heating means to suppress a heating output and to cook rice, when rice cooking amount determination time is longer than the 1st predetermined time set beforehand, The rice cooker characterized by the above-mentioned. It is provided with a reporting means for performing a reporting operation, and the control means controls the reporting means so as to notify that when the rice cooking amount determination time is longer than a preset first predetermined time. The cooker according to claim 1. The display means for performing the display operation, and the control means controls the display means to display that when the rice cooking amount determination time is longer than a first predetermined time set in advance. The cooker according to claim 1 or 2. 4. The cooked rice according to claim 1, wherein the control means forcibly ends the cooked rice when the cooked rice amount determination time is longer than a second predetermined time set in advance. vessel. The rice cooker according to claim 4, wherein the control means controls the notifying means so as to notify that when the rice cooking amount determination time is longer than a preset second predetermined time. 6. The rice cooking according to claim 4 or 5, wherein the control means controls the display means so as to display that when the rice cooking amount determination time is longer than a preset second predetermined time. vessel.

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