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Understanding the Freeze-Drying Process by Azzwa Zubairi is a document available to read on EtoBox.
Freeze drying, also known as lyophilization, is a process used to preserve perishable materials. It works by freezing the material and reducing pressure to allow frozen water to sublimate from solid to gas without passing through the liquid phase. There are four stages: pretreatment, freezing, primary drying where 95% of water sublimates, and secondary drying to remove remaining water. Freeze drying results in materials that can be stored at room temperature for years without refrigeration due to their low
- Author
- Azzwa Zubairi
- Language
- EN