Nowadays, coffee has already entered thousands of households and has become a good helper for us to refresh our minds and fight against drowsiness. The planting and development of Yunnan coffee has allowed Chinese people to drink their own coffee. The main consumer of coffee is still instant coffee. Today we are going to talk about the current mainstream process of instant coffee - freeze-drying. 

The full name of freeze-drying is vacuum freeze-drying. It is a new drying method that freezes water-containing materials into solids and uses the sublimation performance of water under low-temperature and low-pressure conditions to dehydrate materials at low temperature to achieve drying. Since the vacuum freeze-drying technology is carried out in a low-temperature, low-oxygen environment, most of the biological reactions are stagnant, and there is no liquid water in the treatment process, and the water is directly sublimated in a solid state, so that the original structure and shape of the material can be protected to the greatest extent, and finally the appearance can be obtained. High-quality dry products with both intrinsic quality.

At present, freeze-drying is mainly used in various high-quality instant coffee, instant beverages, dried fruits and vegetables, and plant extract powders.

One of our freeze-dried products, aloe vera extract powder is extracted by freeze-drying process because of its special structure, the retention of active ingredients, as well as the color and function of the product itself. The active ingredients will not be destroyed, and the activity of the aloe components is preserved to the greatest extent, ensuring that it has the same nutrition as fresh aloe.

The good dehydration of freeze-drying also greatly prolongs the shelf life of food. Without preservatives, freeze-dried dried fruits can usually be stored for several years, which is a natural antiseptic technology.