This machine is suitable for dry goods, can not be vacuumed with a large amount of liquid, can not be vacuumed with a large amount of oil and water powder products, Oh, the water in the vacuum will immediately deteriorate, the frozen liquid solid can be vacuumed and must be single-sided grain bag, Ordinary plain transparent bag can not be vacuumed, can only be sealed. Kraft paper, Yin and Yang bags, aluminum foil, cloth material bags can not be sealed, the folding bag part can not be vacuumed
