| 摘要 |
PROBLEM TO BE SOLVED: To make the temperature in an inner kettle uniform without the occurrence of crumbling by boiling and boiling over, to give rise to small pits and to beautifully finish cooked rice by temporarily vigorously giving rise to the convection in the inner kettle in the boiling start time. SOLUTION: When the inside of the inner kettle 2 attains an approximately boiling state, high electric power is made by a temporary adding means 11 for a heating quantity controlled by a main heating control means 7 so as to temporarily make the heating electric power higher than in any other time and the heating operation of both heating means and lid heating means is stopped to prevent the breaker from being activated.
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