| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating cooker of simple constitution capable of thawing frozen food at high quality, achieving compactness in device size, and simplifying control. SOLUTION: This heating cooker is composed of a food tank 1 to contain food, and a circulation fan 4 and a heater 5 provided in a circulation duct 20. At an upper and a lower parts of the circulation duct 20, an intake port 22 and a blow port 23 for air into/out of the food tank are provided. To an upper part of the circulation duct 20, an outside air supply passage 21 is connected. In the circulation duct 20, a steam supply port 7 is installed. In thawing cooking, outside air is sent from the outside air supply passage 21 into the food tank, while steam generated by a steam generating heater 6 is supplied from the steam supply port 7 into the circulation duct 20. Supplied steam is mixed with outside air sent from the outside air supply passage 21 to be low-temperature steam to be supplied into the food tank. By condensation heat transfer of steam, subject food 2 can be efficiently thawed. COPYRIGHT: (C)2004,JPO&NCIPI
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