After the vacuum freeze dryer, the material is put into the material box for freezing The freezing process of materials involves, on one hand, the vacuum system evacuating and removing a portion of the moisture; On the other hand, when the material is frozen, the moisture contained in the molecules is discharged to the surface of the material to freeze. After meeting the freezing requirements, the material is heated and dried by the heating system, and the moisture contained in the material is brought to the freezing capture box for freezing by vacuuming, achieving the freeze-drying requirements of the material.

Characteristics of vacuum freeze dryer:

The moisture content of the dried material is very low (less than 5%) and can be stored for a long time.

The loss of nutrients is small, and the substance after freeze-drying is porous, with a loose texture and a similar appearance to before drying.

It can achieve the goal of maintaining the original color, aroma, taste, shape, and freshness of the material. The ingredients are preserved, and the taste becomes stronger due to dehydration.

After freeze-drying, the material mostly has a porous sponge like structure, which can quickly recover after adding water and has excellent rehydration properties.

Application fields of vacuum freeze dryer

1. Pharmaceutical industry: Freeze drying technology can be used for dehydration and preservation of traditional Chinese and Western medicines such as serum, plasma, vaccines, enzymes, etc.

2. Food industry: Vacuum freeze-drying technology is mainly used in the food industry to dry coffee, vegetable leaves, fruit juice, strawberries, whole shrimp, meat, specialty vegetables, etc. It can maintain the color, aroma, taste, shape, and nutritional content of food unchanged, facilitate long-term storage and transportation, and is very suitable for the production of convenient nutritional foods.

3. Nutritional and health care: Vacuum freeze-drying technology can also be used to dry royal jelly, pearl powder, ginseng, turtle powder, black ant powder, snake powder, etc. It can preserve its nutritional and active ingredients for a long time.

4. Biological research: Vacuum freeze-drying technology can be used to preserve bacteria, arteries, bones, skin, cornea, nerve tissue, and various organs for a long time. When used, it can provide renewable water and maintain its biochemical and physical properties.

5. Other applications, such as the production of aerospace insulation ceramics, wood and silk in archaeology, preservation of products, specimen making, preparation of special materials, etc., have good results.