A side gusset coffee bag is a stand-up pouch with expandable side pleats, offering extra storage space and improved stability. Its unique gusseted design prevents crushing while maintaining a sleek profile. Made from high-barrier materials (such as aluminum foil or KNY/PE laminate), it blocks moisture, oxygen, and light to preserve coffee freshness. Features like a degassing valve or resealable zipper enhance convenience and flavor retention. Ideal for specialty coffee beans, ground coffee, and gourmet products, this bag combines functionality with upshelf branding appeal.