| 摘要 |
PROBLEM TO BE SOLVED: To provide a baked sweet potato making apparatus which reduces a making cost by simplifying the device for cooking a large amount of delicious baked sweet potatoes for a short period of time through heating the sweet potatoes at a high temperature quickly right after heating the sweet potatoes at a low temperature slowly without having spots caused by heating on the sweet potatoes, and improves the maintaining properties. SOLUTION: The sweet potatoes are heated by far-infrared radiation in a heating container equipped with trays 14 or racks where the sweet potatoes are placed for heating in the inside, a heater 13 for emitting far-infrared rays above or under the trays 14, and ceramic balls 15 arranged in a plane. The sweet potatoes are heated in two levels, heating at a low temperature and at a high temperature, to extract characteristics of an enzyme for sweetening the baked sweet potatoes. For the purpose, a container for heating at a low temperature is provided in addition to the heating container. The container for heating at a low temperature increases the temperature inside the container by taking in the heated air and heated steam from the container for heating at a high temperature. The temperature inside the container is kept constant since the amount of the heated air and heated steam taken in is adjusted by a shutter or a damper. COPYRIGHT: (C)2006,JPO&NCIPI
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