freeze dried foodIt is a natural, additive free, healthy and nutritious food. Freeze dried foods such as freeze-dried seasonings, casual freeze-dried foods, and ready to eat freeze-dried foods are popular among consumers in the market. Freeze drying technology requires freeze-dried food to retain its original body shape, color, and nutritional components, and to have good rehydration properties. At present, most freeze-dried foods on the market cannot be rehydrated or are difficult to rehydrate, and their nutritional components are lost. Based on this situation, the FZG food freeze dryer is introduced here to solve the rehydration problem of freeze-dried food.

Based on the situation where some freeze-dried foods in the market cannot be rehydrated or are difficult to rehydrate, it is determined that the reason is that the selected food freeze-drying machine equipment and freeze-drying process cannot meet the requirements. The reason why freeze-dried food cannot be rehydrated is that during the drying process, food materials are heated too quickly or continuously at high temperatures, causing them to disintegrate or char, changing the molecular structure and characteristics of the food materials. The FZG food freeze dryer adopts contact drying and directly exchanges heat with food materials. The partition of the FZG food freeze dryer has refrigeration and temperature control. The temperature control range of the partition is -45~80 ℃, and the heating rate is precisely controlled. The uniformity of the partition is controlled at ± 1 ℃. The vacuum degree control meets the range of 2.7~80pa. The FZG food freeze-drying machine equipment meets the technical requirements of freeze-drying process for food materials, and can set the freeze-drying process, including temperature, vacuum degree, heating rate, and operation time data setting and control operation, to ensure that the food material is temperature controlled and dried at low temperature, effectively control the sublimation rate to ensure that the food material does not disintegrate during the sublimation process, maintain the original molecular structure from being destroyed, and preserve the original color, aroma, taste, and nutritional components of the food material basically unchanged.

The use of FZG food freeze-drying function effectively solves the rehydration problem of freeze-dried food, and is widely used in freeze-drying various fruit and vegetable foods, meat foods, ready to eat foods, seafood foods, coffee foods, dairy products, etc.