This bag is commonly used to package coffee, tea, biscuits, candy and bulk products. Precise gluing ensures a longer- term storage of products and preserves their aroma. Coffee bags with one way degassing valve is a must-have for packing freshly roasted coffee. Our valve pouches are foil-lined and flat-packed for easy storage. The valve helps release gas that is emitted from roasted coffee and stops air from going back in. This prevents the coffee from going stale and the bags from bursting.