| 摘要 |
PROBLEM TO BE SOLVED: To cope with various needs of a user by increasing the number of selections of a heat insulation temperature without the inconvenience of use. SOLUTION: When heating liquid content, boiling hot water and supplying it for use while heat-insulating it, a normal display state at a display means is switched to the display of a specified heat insulation temperature relating to heat insulation temperature selection among selectable lower limit heat insulation temperature, upper limit heat insulation temperature and heat insulation temperature between them, and the displayed heat insulation temperature or heat insulation state is changed continuously or stepwise every time an operation is performed until an establishing condition is satisfied thereafter. The final display temperature is set as a selected heat insulation temperature when there is no operation performed even when the establishing condition is satisfied, heat insulation control is performed, and the display means returns to normal display. COPYRIGHT: (C)2007,JPO&INPIT
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