Used Vacuum freeze dryer

The basic principle of freeze-drying is based on the three states of water. Water exists in three forms: solid, liquid, and gas. These three states can both transform into each other and coexist. When water is at the triple point (with a temperature of 0.01℃ and a water vapor pressure of 610.5 Pa), water, ice, and water vapor can coexist and be in equilibrium with each other. In a high vacuum environment, using the sublimation principle, the moisture in the pre-frozen materials is removed directly from the ice state to the water vapor state without melting the ice, thus achieving the purpose of freeze-drying. The freeze-dried products are sponge-like, without dry shrinkage, have good rehydration properties, contain very little moisture, and can be packaged and stored and transported at room temperature for a long time. Due to the advantages of vacuum freeze-drying over other drying methods, this technology has become increasingly popular since its emergence, and its applications in medicine, biotechnology products, and food have become increasingly widespread. Serum, bacterial strains, traditional and Western medicines, and other biological products are mostly some biological active substances. The vacuum freeze-drying technology also provides a good solution for preserving biological activity.

The freeze-drying machine is suitable for drying high-end raw materials, Chinese herbal slices, biological products, wild vegetables, dehydrated vegetables, food, fruits, chemicals, drug intermediates and other materials.