Vacuum-sealed bags are special storage bags designed to remove air from the inside before sealing. This process helps to preserve food by slowing down spoilage and preventing freezer burn. They are commonly used for storing meats, vegetables, and leftovers, extending their shelf life significantly. These bags work by using a vacuum sealer, a device that sucks out the air and seals the bag tightly. Vacuum-sealed bags are also useful for organizing items, such as clothing or bedding, as they can compress the contents, saving space in closets or luggage.