Double Buckle Design: Sturdy buckle design on both sides, buckle the machine to prevent air leakage during work. High-density sealing strip: Achieving a fully closed environment, efficiently isolating air, and powerful vacuum sealing. Vacuum exhaust valve: When the sealing machine cannot be opened after sealing, the valve can be lifted to release the air. Vacuum Preservation: Vacuum technology is adopted to make the degree of vacuum pumping reach complete vacuum, 60kpd strong suction, and lock the freshness in 30s. Make the food fresh and lasting, and restore the original taste. Widely Applicable: It can easily control dry, wet, soft and oily ingredients. Different from cryopreservation, which is full of ice crystals and easy to oxidize, it is a good helper for daily preservation.