What is a Vacuum Freeze-Drying Oven? A Low-Temperature Drying Equipment for Preserving Biological Activity
A vacuum freeze-drying oven, also known as a lyophilizer, is a specialized drying device that removes moisture from heat-sensitive materials through sublimation under low temperature and vacuum conditions. It preserves the original structure, biochemical activity, and rehydration capability of the product, making it indispensable in pharmaceuticals, biotechnology, food processing, and laboratory research. This article explains its working principle, key components, performance indicators, and selection guidelines.