Vacuum packaging is a method of preserving food by removing air from the packaging before sealing it. This process helps to prevent the growth of bacteria and mold, extending the shelf life of the product. It is commonly used for items like meats, cheeses, and vegetables, making them last longer without the need for preservatives. The vacuum packaging process involves placing food in a plastic pouch and using a machine to suck out the air before sealing it tightly. This technique not only keeps food fresh but also reduces freezer burn and helps maintain flavor and texture during storage.