The working principle of a food freeze-drying machine is to transform and change the liquid, solid, and gas states of water under different temperatures and vacuum environments. The working process of a food freeze-drying machine is to put pre washed and cut food into the freeze-drying machine for low-temperature pre freezing to form a solid state, and then the warehouse of the food freeze-drying machine forms a vacuum environment. The food materials are sublimated in the vacuum environment, heated according to the characteristics of the materials, and the sublimation rate is operated according to the requirements, achieving the goal of removing moisture from the food materials. The freeze-dried food is spongy, non drying shrinkage, and has good rehydration properties, while preserving the original color, aroma, taste, and nutritional components of the food.

Freeze dried fruit and vegetable crisps are different from those processed by low-temperature frying and drying. Through processing with food freeze-drying machine equipment, they can preserve the original shape, color, and nutrition of the crispy fruit and vegetable crisps, giving them a crispy taste. Rehydration can restore most of the initial properties of fruits and vegetables. After processing with a vacuum freeze-drying machine, the food has very little water content and can be kept for a long time at room temperature, making it convenient for consumption, storage, and transportation.

The freeze-drying process of red dates using a food freeze-drying machine:

1. Select a jujube with uniform size, about 80% maturity, and a smooth surface, and use a suitable pore size (10 mm) punch to remove the jujube stones;

2. The vacuum freeze-drying process is generally divided into three stages: pre freezing, sublimation drying (primary drying), and analytical drying (secondary drying).;

3. Determine the appropriate process parameter combination for vacuum freeze-dried jujube slices through secondary universal rotation combination test analysis. Red dates processed by food freeze-drying machines have little water content and can be stored for a longer time at room temperature.

Food freeze-drying machine equipment has been widely used in outdoor food processing, including processing of rice freeze-drying, meat freeze-drying, Rice noodles freeze-drying, vegetable freeze-drying, soup freeze-drying and nutrition Congee freeze-drying to meet the nutritional food supplement of operation enthusiasts and operators. Food freeze-drying machine equipment is an irreplaceable high-tech equipment for modern food drying and processing enterprises, helping the rapid development of the food drying and processing industry!

The pet food freeze-drying machine has the advantages of low-temperature freeze-drying and vacuum drying. While developing freeze-drying machines to process freeze-dried raw bone and meat, the FZG pet food freeze-drying machine production line is suitable for a wide range of pet food freeze-drying varieties, such as pet seafood freeze-drying, chicken breast freeze-drying, composite yogurt block freeze-drying, beef freeze-drying, probiotic freeze-drying, etc.