What is a Vacuum Freeze-Drying Oven? A Low-Temperature Dehydration Equipment for Preserving Bioactive Materials
A vacuum freeze-drying oven (lyophilizer) is a specialized dehydration device that removes moisture by sublimation under low temperature and high vacuum. It preserves the original structure, biological activity, and nutrients of heat-sensitive materials, making it essential in pharmaceuticals, food processing, biotechnology, and material science. This article covers its working principle, types, key specifications, and selection tips.