Custom printed flat bottom coffee bags are one of the most common coffee bags styles. Our airtight coffee bags are strongly heat-sealed enough to lock up the aroma of coffee beans. With degassing valve attached onto pouch, degassing valve functions well in maintaining the freshness of coffee beans products. Additionally, their eight-sided flat bottom structure can not only provides ample space for storing coffee beans, but also offer sufficient printable space to make your brand images fully displayed, enabling your packaging bags to stand out from competition.