| 摘要 |
PURPOSE:To heat a container-packed food to a desired high temperature at a short time, by heating a soft and granular food from the outside of container in which the food is housed by compressing from upside with a substance capable of generating reaction heat by mutually blending. CONSTITUTION:A soft and granular food such as cooked rice is housed in a container in state compressed from upside. Then the outside of the container containing the food is heated by a heating device using a substance capable of chemically reacting and generating reaction heat by mutually blending. According to the above-mentioned method, air between the lower layer part of the soft and granular food and bottom of the food container and air existing among each food particle are reduced, because soft and granular food such as cooked rice is housed in the food container in state previously compressed from upside. Therefore, when the food is heated from the outside of a container containing the food, heat transfer efficiency to the inner food is improved. So, inner food can be heated to high temperature at a short time compared with the case compressing no inner food. |
