FREEZE DRYER AND METHOD THAT PRESERVED ORIGINAL APPEARANCE OF FRUIT AND VEGETABLES

摘要

The present invention relates to a freeze dryer for preserving fruits or vegetables intact and a drying method thereof. The freeze dryer for preserving vegetables intact involves sublimation under a high-degree vacuum state, and comprises: a drying chamber where products are dried out; a cooling chamber for thawing; and a pipe connecting the drying chamber and the cooling chamber together and comprising a blocking valve.