About this item MULTIFUNCTIONAL VACUUM SEALER: Dry - can vacuum and seal automatically; Vac - can manually control the vacuum process yourself,and then press Seal mode to seal; Seal - for quick bag sealing without vacuuming; Marinate - You can vacuum for some marinated food with a special external vacuum canister; Accessory - You can use it for vacuuming wine,jar,etc.Multifunctional vacuum machine is easy to operate, even for beginners. FAST SEALING & WORKING CONTINUOUSLY:Equipped with Globefish technology for high-speed continuous working, Bonsenkitchen vacuum sealer machine vacuum seals 40 bags continuously in just 15 minutes. Food vacuum machine is not only for sous vide cooking, but also effectively removes air from bags, keeping food fresh up to 25 days longer without freezer burn or dehydration.