How Freeze-Drying (FD) Technology is Revolutionizing the Health Food Industry
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What is freeze-dried (FD) food? Many people may not be familiar with it, but explaining it as space food might help with understanding. Freeze-drying is short for vacuum freeze-drying, and FD is the abbreviation for Freeze Dried.
Unlike frying, baking, or spray drying used in making powders, freeze-drying involves freezing food and then placing it in a vacuum environment to dehydrate it.
The dehydration process, whether using high or low temperatures, significantly impacts the food's nutrition, flavor, and texture. High-temperature processing causes some nutrient loss and affects taste and flavor.
Therefore, compared to other production processes, the FD freeze-drying process does not alter the food's structure, preserving its nutritional components.
In foreign countries, freeze-dried foods are quite common in some developed nations. Data shows that freeze-dried foods account for a significant portion of convenient foods in the United States, and many coffee and tea factories use freeze-drying technology. As early as 2005, the United States had over 100 freeze-dried food factories, and Japan had over 30, with many convenient foods in both countries using freeze-drying technology.
Compared to foreign countries, the history of vacuum freeze-drying technology in China is only a few decades old. However, after entering the 21st century, with the increase in people's environmental and health awareness, freeze-dried foods have once again seen development opportunities. It is understood that while freeze-drying technology is widely popular in developed countries like the US and Japan, people in China are surrounded by traditional foods like puffed and fried foods. It's not difficult to see that freeze-dried foods are strictly differentiated from puffed and fried foods, leading a new generation of healthy leisure food trends. Many industry insiders believe that this differentiated competition has expanded the market space for leisure foods and may trigger the health industry.
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