| 摘要 |
PURPOSE: A cup-form vessel capable of heating water supplied to an inner vessel by an exothermic reaction of water overflowed from the inner vessel with a heating element by forming a storage space for the heating element generating an exothermic reaction with water therein is provided which permits a user to have a taste of suitably cooked food. CONSTITUTION: This double-wall vessel comprises: an outer vessel(12) having a specified shape; an inner vessel(14) to be placed at the inside of the outer vessel to have a clearance space separated from the inner surface of the outer vessel with a specified distance and to contain cooked food; and a heating element(16) placed in the clearance space to react with water.
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