What should I do if the coffee packaging bag expands? What is the reason for this? As a packaging manufacturer, wenxi Packing has rich experience in customizing the production of coffee packaging bags, and some customers and friends have also responded to this problem of swelling bags. This is not a quality problem of the packaging bag, but that you did not choose the right packaging bag.
Coffee beans will produce carbon dioxide during the roasting process. At the beginning, the carbon dioxide is only attached to the surface of the coffee beans. As the roasting and storage time increases, the carbon dioxide will gradually be released from the surface to support the packaging bag. The amount of carbon dioxide has a great relationship with the degree of roasting of coffee. Coffee beans with a higher degree of roasting will emit more carbon dioxide in most cases. 100g of roasted coffee beans may produce 500cc of carbon dioxide, whereas relatively low roasted coffee beans will emit less carbon dioxide. Sometimes, the release of a large amount of carbon dioxide may break the packaging of coffee beans, so in terms of safety and quality, it is necessary to find a way to release carbon dioxide, and at the same time, the coffee beans should not be exposed to oxygen too much. So many customers choose to use WENXI Packing one-way degassing valve coffee bags.