Working Principle of freeze drying

How to freeze dry your product correctly?

Before you choose a freeze dryer or plan to invest on freeze drying plant, you'd better know freeze drying principle well, and you will learn more information about freeze drying or lyophilization working step.

Freeze-drying—technically known as lyophilisation, lyophilization, or cryodesiccation—is a dehydration process typically used to preserve a perishable material or make the material more convenient for transport. Freeze-drying works by freezing the material and then reducing the surrounding pressure to allow the frozen water in the material to sublime directly from the solid phase to the gas phase.