As a packaging bag for coffee beans and coffee powder, in many goods, customers in addition to paying attention to the brand awareness of the coffee itself, the packaging design of the coffee bag is a

As a packaging bag for coffee beans and coffee powder, in many goods, customers in addition to paying attention to the brand awareness of the coffee itself, the packaging design of the coffee bag is also a very important factor affecting their purchase. More importantly, how can customers buy quality coffee without unpacking it? Very simple, that is to see if there is a one-way exhaust valve installed on the coffee bag!

1, because the roasted coffee beans will produce carbon dioxide, this air valve can discharge carbon dioxide from the bag, in addition, it can block the oxygen outside the bag into the bag inside the oxidation of beans, thus ensuring the fresh quality of coffee and eliminating the resulting coffee bag bulge or burst risk.

2, in addition, in the coffee bag installed air valve, customers can directly squeeze the bag when purchasing, the aroma of coffee directly from the bag to let customers smell its aroma, so that customers can better confirm the freshness of coffee (quality).

Therefore, it is very important to install a one-way exhaust valve on the coffee bag, more accurately: professional coffee bags must have a one-way exhaust valve!