The NESCO Electric Mason Jar Vacuum Sealer removes air from regular and wide mouth mason jars to extend shelf life of food. Foods that can be safely stored in vacuum-sealed jars include dehydrated foods, nuts, rice, flour, bulk spices, oats, powdered milk, dry ingredients, pasta, beans coffee, cereal and more. Please note that sealing your jars with a jar vacuum sealer is not equivalent to heat or pressure canning but is still a terrific way to preserve freshness.Specifications and Features: Removes air from glass canning jars and creates an airtight seal Suitable for regular and wide mouth mason jars Easy one-button operation Auto power off LED display to show battery power and seal time Portable, cordless, and rechargeable Includes: Charging cable, jar opener, 5 wide lids and 5 regular lids