Freeze Drying Pet Food Advantages ...

Freeze drying or lyophilization is a low temperature dehydration process. Typically use to preserve perishable materials or make the material more convenient for storage.

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Freeze drying removes water by freezing the materials, and then place them in a vacuum chamber, to enable the frozen water in materials to sublime directly from solid phase to gas.

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There are mainly 3 stages in a freeze drying process: Freezing, Primary drying and Secondary drying.

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