Moisturizing Vacuum Coffee Canister

The existing ordinary fresh-keeping boxes and fresh-keeping lid products define food storage and fresh-keeping as long as the container is well sealed, the fresh-keeping effect can be achieved. Science has proven this to be a myth. Ordinary fresh-keeping boxes have sealing properties, but oxygen still exists in the box, and oxygen is one of the main factors for true preservation. The preservation technology of vacuum storage tanks fundamentally solves the problem and ensures low oxygen and low...