METHOD FOR PUFFING AND DRYING FOOD OR THE LIKE

摘要

PURPOSE:To improve puffing property by cooling a living thing-derived composition or processed food thereof to a temperature without freezing and simultaneously absorbing gas and then freezing the composition or processed food thereof and then subjecting the frozen composition or processed food thereof to microwave induction heating. CONSTITUTION:A living thing-derived composition or processed article (e.g. algae) thereof is charged into a vessel 1 for high pressure freezing and upper lid 2 is sealed with a bolt and nut 3. Then the composition is cooled to temperature (-8 to -15 deg.C) without freezing and simultaneously a gas is introduced from a pipe 4 and the composition is pressurized to >=12kg/cm<2> and gas is absorbed and impregnated and then a gas is released through a leak valve 7 to freeze the composition. Then the frozen composition is irradiated with a microwave having <=915MHz frequency in output of 50-200KW/Hr under reduced pressure of ordinary pressure B to >=70Torr. and subjected to microwave induction heating to puff the food.