Is an efficient storage and fresh-keeping method. Baileyuan fresh-keeping bag abandons the traditional method of chemical preservation of fruits and vegetables with powder and tablets, and fundamentally avoids the residue of chemicals and the generation of side effects in the process of chemical preservation. It is a truly green and efficient storage and preservation method in the fresh-keeping industry. Fresh-keeping bag mainly refers to the bag made of food fresh-keeping film, which is mainly used to preserve vegetables, fruits, grains, cooked food and other foods.