Vacuum packing is a method of preserving food by removing air from a plastic pouch or container before sealing it. This process helps to prevent the growth of bacteria and mold, extending the shelf life of the food. It is commonly used for items like meats, cheeses, and vegetables, making them last longer in the refrigerator or freezer. The vacuum packing process involves using a vacuum sealer, which creates a tight seal around the food. This technique is also popular for storing non-food items, such as clothing and documents, as it reduces space and protects them from moisture and dust.