Hot press exhaust valve machine-coffee and fermentation bag solution
Release time:2025-09-25 11:18:41 | Views：
Exhaust valve hot press welds a plastic one way exhaust valve inside a plastic bag through heating and hot pressing. While hot pressing, the plastic bag is pierced with one or more small holes to allow the air inside the bag to be discharged while preventing the outside air from entering. This allows the plastic bag to have the functions of exhaust and quality preservation. It is currently widely used in coffee bags and fermentation bags.
