Storage of wild vegetables

Fixing storage: Some wild vegetables such as bracken, Osmunda, etc., if not processed in time, will soon be aged and hardened. Therefore, they must be boiled in time with boiling water. Do not use iron pot when fixing. Then put into plastic bag, add 5% concentration of salt water, drain the gas in the bag, tie it tightly, put it in the cool place. Pickled storage: For short-term storage, as long as the wild herbs washed, directly add 2% -5% concentration of salt water can be soaked. Use fresh water for desalination when eating. If you want to store for more than 6 months, use two pickling methods. When the first pickling, the amount of salt is 20%-30% of the amount of wild herbs, soaked for 10 days; the second time the amount of salt is 10%-15% of the amount of wild herbs, and after filling the jar with 37% salt water Stamped stone, pickled for 15 days. Desalt treatment when eating or processing.

Freeze Dried process is a method to freeze the dry liquid materials into solid and use the sublimation properties of ice under low temperature and pressure to dehydrate the materials and achieve the purpose of drying. Freeze-drying technology first appeared in the space field, and it is known to all that the space food has a high quality requirement, which is designed to meet the needs of the astronauts in space for the nutrition of fruits and vegetables. Because freeze-drying technology not only let the color, aroma, taste, nutrition of the food itself, but also make food more convenient to carry and transport. With the development of economy, freeze-drying technology has been applied to daily food processing, so the lyophilization process is also called aerospace food technology.

Freeze dried food is to use rapid freezing, vacuum dehydration method of ice, preserved the original color, aroma, taste, nutrition, and the appearance of the original material, the water content of only about 5%, because of the particularity of its craft, by freezing to break the cell wall, so crispy, nutrition, easy absorption

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