Feature: 1. This machine is a fully automatic vacuum sealing machine, which can also be used for sealing alone. 2. The vacuuming must be a textured bag or a bag with folded corners, other types of bags only support a single seal 3. Fresh vegetables and fruits have active molecules that will release oxygen, and the bag will swell after vacuuming. This is a natural phenomenon and has nothing to do with the machine and the bag. Mind shooting carefully. (Solution: Freezing works better) 4. Preservation principle: Several conditions for food preservation are low temperature and anti-oxidation, anti-moisture, anti-bacteria, and anti-smell. Vacuum cannot change the temperature instead of refrigeration, and it must be combined with refrigeration to achieve the effect of prolonged preservation
