Coffee Bag

1. Freshness preservation and oxidation prevention：The bag is typically equipped with a one-way degassing valve, allowing carbon dioxide released by roasted coffee beans to escape while preventing external oxygen from entering, thus slowing the loss of coffee flavor.

2. Barrier against external elements：The multi-layer structure (such as an aluminum foil layer) effectively blocks light, moisture, and oxygen, keeping the coffee dry and fresh while extending shelf life.

3. Convenient storage and use：The stand-up pouch design allows the coffee bag to stand upright on shelves for easy display. Some styles feature resealable zippers, allowing the bag to be resealed after opening to maintain the freshness of the remaining coffee.

4. Brand presentation and information delivery：The bag surface can be printed with brand logos, coffee origin, roast level, flavor notes, and other information, helping consumers make choices while enhancing brand image.