Plastic bags are common containers for items in daily life. The plastic bag is waterproof, windproof, light weight, not afraid of falling and touching, and easy to carry. They are deeply trusted and praised by consumers. In order to give full play to the role of plastic bags and improve their use value, in daily life, many people also use plastic bags to save various fruits and vegetables. But when packing vegetables and fruits in plastic bags, special attention is required.

(1) Plastic bags can effectively extend the storage period of fruits and vegetables. Fruits and vegetables are organic foods with high moisture, water-soluble nutrients and enzymes. During storage of fruits and vegetables, there will be strong breathing activity. Fruits and vegetables are stored in plastic bags. The mouth of the plastic bag is opened every two or three days to release carbon dioxide and heat, and then the mouth is tied. The principle of reducing low oxygen concentration and increasing carbon dioxide concentration can effectively reduce the rot and deterioration of fruits and vegetables. Using plastic bags to store fruits and vegetables is a common method in daily life, especially in winter, it can keep fruits and vegetables fresh.

(2) The storage time of plastic bags for fruits and vegetables should not be too long. Lowering the oxygen concentration and increasing the carbon dioxide concentration can slow the respiration of fruits and vegetables, but excessive control will cause the fruits and vegetables to break down more nutrients to obtain enough energy, and maintain low oxygen breathing of the alcohol produced inside the fruits and vegetables, resulting in decay .