Freeze-drying is a method in which water (or liquid) contained in food is frozen (or solidified) in the process of freezing, and is further gasified via sublimation as opposed to the evaporation that takes place in the normal drying process.
The materials of the main body, the vacuum pump and the control system as well as the configuration can be adjusted to meet customer needs.
As freeze-drying machines for testing can also be optionally switched automatically for vacuum-drying application, the same machine can be used for both tasks.
Vacuum freeze-drying machines for testing are ideal for processing small sample amounts and drying high value-added products such as sea cucumbers and expensive herbal medicines in freeze-drying plants. These machines are commonly used to process Chinese freeze-dried sea cucumbers,fresh vegetable,fruit and some medicine.