| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure cooker set comprising a heat-insulating pot with enhanced strength against deformation, capable of efficiently heating air in the space between an inner pot and an outer pot. SOLUTION: The outer surface 122a of a side wall 122 of the outer pot 120 is formed in the shape of an octagonal prism, and the inner surface 122b is formed in the shape of a cylinder. Accordingly, thick parts and thin parts are alternately formed in the circumferential direction of the side wall 122. In the thick parts of the side wall 122, the temperature is relatively high as the influence of outside air of the outer pot 120 is small, while in the thin parts, the temperature is relatively low as the influence of outside air is large. As a result, the difference in temperature is generated in air in contact with these parts, and air is circulated between these parts, and therefore, air in the space 140 can be easily heated. COPYRIGHT: (C)2007,JPO&INPIT
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