How freeze drying FD technology causes a storm in the health food industry

What is FD freeze-dried food? Many people may not understand it very well, but it should be more or less understandable to explain it with aerospace food. Freeze drying is the abbreviation of vacuum freeze drying, and FD is the abbreviation of freeze dried.

Unlike frying or baking and spray drying when making powder, freeze-drying is to place the frozen food in a vacuum environment and dehydrate the food.

How to dehydrate, whether through high temperature or low temperature, has a very obvious difference on the nutrition, flavor and texture of food. Food will lose some nutrition after high temperature, and the taste and flavor will also be affected to a certain extent.

Therefore, compared with other production processes, FD freeze-drying does not change the structure of food and retains the nutrients of food itself.

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In foreign countries, freeze-dried food has been quite popular in some developed countries. Relevant data show that freeze-dried foods account for a large proportion of convenience foods in the United States. Many factories that produce coffee and tea use freeze-drying technology. As early as 2005, there were more than 100 freeze-dried food factories in the United States and more than 30 freeze-dried food factories in Japan. Many convenience foods in the two countries were produced by freeze-drying technology.

Compared with foreign countries, domestic vacuum freeze-drying technology has only a few decades of history. However, after entering the 21st century, with the enhancement of people's awareness of environmental protection and health, freeze-dried food once again ushered in development opportunities. It is understood that while freeze-drying technology is widely popular in developed countries such as the United States and Japan, Chinese people are surrounded by traditional foods such as puffing and frying. It is not difficult to find that freeze-dried food is strictly distinguished from puffed, fried and other foods, and is leading the trend of a new generation of healthy snack food. Many insiders believe that this differentiated competition has expanded the market space of snack food and may detonate the health industry.

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