PROFESSIONAL VACUUM SEALER: The PXYFHH food sealer machine only takes 6-12 seconds to complete the food vacuum sealing. Vacuum sealer for food is easy to operate with 2 buttons. It can keep food fresh for 9 times longer than normal storage methods. USAGE: Place the vacuum bag with unilateral texture on the vacuum pumping card, and then press the large green light button as needed. The green light will vacuum, and the red light will seal. If the sealing effect is not ideal, please use both hands to press the sealing machine at the pressing position. After the sealing is completed, open the vacuum exhaust valve and take out the packaging bag. ATTENTION: A. Liquid and powder filled objects cannot be vacuumed. B. Flat bags, Kraft paper and snacks cannot be vacuumed. C.When vacuuming, the clamps at both ends must be tightened or both hands must be pressed on both ends. D. Use dedicated sealing bags instead of plastic wrap bags as much as possible. AFTER SALES SERVICE: If you are dissatisfied with the product or have quality issues, contact Amazon's after-sales service as soon as possible to replace the product for free. DRY/MOIST MODE: vacuum sealer machine can help preserve cured meat and seafood for up to 28 days and lock in moisture, save money and waste less. It also can meet the daily meal preparation needs of vegetables, fruits, nuts, snacks, etc.