As a packaging bag for coffee beans and coffee powder, among many products, customers not only pay attention to the brand awareness of the coffee itself but also the packaging design of the coffee bag is a very important factor affecting their purchase. What's more important is how can customers buy high-quality coffee without unpacking it? It's very simple, that is to see if there is a one-way exhaust valve installed on the coffee bag!
1. Since roasted coffee beans will generate carbon dioxide, this air valve can discharge carbon dioxide into the bag, and can also block the oxygen outside the bag from entering the bag to oxidize the beans, thereby ensuring the fresh quality of the coffee and eliminating the resulting Risk of swelling or bursting of coffee bags.
2. In addition, an air valve is installed on the coffee bag, and the customer can squeeze the bag directly when purchasing. The aroma of the coffee is directly transmitted from the bag so that the customer can smell its aroma so that the customer can better confirm the freshness of the coffee quality).
