| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a machine for both freezing and thawing, holding the form and the freshness of a hand-rolled sushi in which Japanese horseradish and sushi ingredient are put on sushi cooked rice. <P>SOLUTION: This freezing and thawing machine is provided by performing an instantaneous freezing at approximately -30°C as a vacuum package 9 or an inert gas-sealed package form by utilizing an ultrasonic wave in highly conductive water, and also performing the thawing as an instantaneous thawing to -3°C core temperature in ethyl alcohol-added water 38 at approximately -5°C by utilizing the ultrasonic wave in water. It is possible to thaw the sushi by taking out from a freezer at a necessary time by necessary amounts, and to avoid various material losses. <P>COPYRIGHT: (C)2009,JPO&INPIT |
