Vacuum Freeze Dryer is an advanced Hi-Tech dehydration technology, It makes hydrous materials frozen in the low temperature status, then under the vacuum condition, it adopts thermal radiation method for heating, to sublimate ice to gas directly. After the moisture comes out, it uses ice-condenser (cold trap) and vacuum device to dehydrate the water content. It is a combined application technology based on multidisciplinary development, including refrigeration, heating, vacuum, biological, electrical and etc. Vacuum freeze drying technology has widely application, such as for chemical products, biologics, health product, herbs, agricultural products ( meat, poulty, egg, sea food, vegetables and fruits and etc.)

The vacuum freeze-drying is advanced method of dehydration. The process takes advantage of the principle of ice crystal’s lyopilization under purified vacuum condition,in which the water in ice form on the frozen goods can be directly lyopilized into steam without melting in advance,to get the dried goods.The freeze dryer is a mechanical, refrigeration, vacuum, electric control in one integrated technology application.

Freeze-dry (brief named Freeze-dry) is a stable process of material dried which will put the material contained with water to freeze to solid first, then make among them of the water sublimate from solid to air condition, removing water to preserve materials