Aluminum foil coffee bags have excellent barrier properties and can effectively prevent coffee beans from coming into contact with light and air, thereby preventing the aroma of coffee beans from being released and oxidized. This type of packaging bag is usually made of aluminum-plastic composite materials and has good water and oxygen isolation functions, which can effectively protect the freshness and quality of coffee beans. It has the following advantages:
(1) Exquisite craftsmanship. The air valve keeps the coffee beans fresh and moisture-proof. The iron ring lanyard design is easy to take and the single-sided easy-tear zipper is easy to tear open.
(2)Aluminum-plated interior. Large opening, more convenient for product filling, can be used repeatedly, effectively locks in freshness, keeps it sealed, and is stress-free to fill.
(3)Open zipper design. Concave and convex self-sealing strips can be easily sealed with a single press. It can be used repeatedly, has good sealing performance, prevents air from entering, and locks in freshness for a long time.
(4) With built-in tear-off. It can be sealed again with a sealing machine, with strong sealing. The tear-off design makes the bag easier to open, saving time looking for a knife or scissors.