冻干食品是将新鲜食品如蔬菜、肉食、水产、中药材等快速冷冻后，再送入真空容器中升华脱水而成的食品。用冻干工艺制成的食品，不仅保持了食品的色、香、味、形，而且最大限度地保存了食品中的维生素、蛋白质等营养物质。食用时只要将该食品加水即可，在几分钟内就会复原为 Freeze-dried food is fresh food such as vegetables, meat, aquatic products, Chinese herbal medicines and other rapid freezing, and then into the vacuum vessel sublimation dehydration food. The products made by lyophilization not only keep the color, fragrance, taste and shape of the food, but also keep the vitamins, protein and other nutrients in the food to the maximum extent. Just eat when the food can be water, in a few minutes will be restored as