Commercial Freeze Drying Equipment for Food

Commercial freeze drying equipment is an automated system designed for high-volume production of freeze-dried food products in industrial settings. It is typically used in the food processing industry to create shelf-stable goods and to preserve products for long-term storage. The equipment is often used to create products such as freeze-dried fruits, vegetables, proteins, and dairy products. Freeze-drying is a method of food preservation where food is frozen, subjected to reduced pressure, and heated so that the sublimed frozen water is removed from the food, leaving it in a stable state. The freeze-drying process allows food to retain flavor, aroma and nutritional value while significantly reducing spoilage and extending shelf life.

Compared with the usual drying methods such as sun drying, oven drying, spray drying etc., the freeze drying has the following advantages:

1.     Proteins don't denature，microorganisms maintain their biological activity.

2.     Almost no loss of volatile substances, heat-denatured nutrients and aroma components in the product.

3.     The growth of microorganisms and the action of enzymes can hardly be carried out and the product can best maintain its original properties.

4.     After freeze-drying, the volume and shape of the product are almost unchanged, and the rehydration is good.

5.     Freeze-dried under vacuum with very little oxygen, so that easily oxidized material is protected.

6.     Freeze drying can remove95-99.5% of the moisture in the material, and the storage period of the product is longer.