Lab Mini Vacuum Freeze Dryer Equipment for Medicine Drying

Freeze drying is a technology that uses the principle of sublimation to dry. It is a process that quickly freezes the dried substance at low temperature, and then directly sublimates the frozen water molecules into water vapor in an appropriate vacuum environment.

The basic principle of freeze-drying is based on the change of three states of water. Water has solid state, liquid state and gas state, and the three states can both transform and coexist. To obtain high-quality products, we should have a comprehensive understanding of the theory and technology of freeze-drying. The freeze-drying process includes three stages: pre freezing, sublimation and re freeze-drying. Reasonable and effective shortening of freeze-drying cycle has obvious economic value in industrial production.