Coffee Bags with Valve refer to a type of functional flexible packaging bag specifically developed for the packaging needs of specialty coffee beans and ground coffee. They typically feature common packaging structures used on e-commerce platforms, such as stand-up pouches, flat-bottom bags, or side-gusseted bags, with a structural design that provides stable display performance. The core feature of this packaging is the one-way degassing valve on the bag surface. This structure allows the coffee to release gases naturally during the post-roasting degassing process, maintaining the bag's good appearance. Coffee Bags with Valve are usually made of multi-layer composite materials, meeting the basic requirements for maintaining aroma, dryness, and bag seal integrity during the storage of roasted coffee. They are a high-demand category in the packaging industry and are often used in custom packaging projects for mid-to-high-end coffee brands. This type of packaging supports various printing methods and can be combined with different bag structures, providing users with a more professional packaging experience in terms of brand presentation, shelf display, and transportation protection.

1. Valve Configuration

The bags are equipped with industry-standard one-way degassing valves, with a pressure release value of approximately 3–8 mbar, allowing roasted coffee to naturally degas. The valve prevents oxygen from flowing back in during pressure release, maintaining a stable internal environment. The valve position can be front or side-mounted according to the design, allowing Flat Bottom Coffee Bags with Valve to meet brand design requirements. The valve is secured using ultrasonic welding or heat sealing, ensuring robustness and consistent functionality.

2. Reliable Sealing

The bags can be fitted with structures such as Tin Tie, Regular Zipper, or Pocket Zipper. The heat seal strength typically reaches ≥35N/15mm, maintaining good sealing even after multiple openings. The sealing area uses a high-temperature composite process, allowing Flat Bottom Coffee Bags with Valve to maintain a stable freshness-locking effect after filling with coffee beans. Combined with the one-way valve degassing component, the bag helps reduce the probability of oxygen entry, preserving the natural state of the roasted coffee.

3. High Customization

Flat Bottom Coffee Bags with Valve can be customized in size, print pattern, material structure, and bag shape ratio according to brand requirements. Materials can be selected from combinations such as Kraft Paper, PET/PE, PET/AL/RCPP, with thicknesses adjustable between 80–160 microns to meet different support needs. Printing supports up to 10-color gravure or flexographic printing, adapting to brand visual presentation requirements. The variety of bag shapes gives Coffee Bags with Valve high recognition in the market.

4. Stable Structure

This type of packaging uses a flat bottom structure, with a six-sided support design at the bottom to enhance the bag's load-bearing stability. Filling capacities from 250g, 500g to 1kg can be achieved through structural ratio optimization. The material stiffness can be controlled between 80–120 mN, allowing Coffee Bags with Valve to maintain a good three-dimensional appearance on the shelves. The structural design improves stacking efficiency, making bulk transportation more stable and reducing packaging damage.

5. High Barrier Properties

Flat Bottom Coffee Bags with Valve utilize a multi-layer composite structure such as PET/AL/NY/PE or PET/VMPET/PE, achieving an overall oxygen transmission rate of 0.5–1.0 cm³/(m²·24h), meeting industry standards for aroma preservation. The materials also control the water vapor transmission rate (WVTR) to within 0.5–1.2 g/(m²·24h), ensuring the contents remain dry during long-distance transportation and storage. The flat bottom structure maintains a stable shape, and the valve allows for gas release, reducing bag expansion due to gas accumulation and ensuring a neat product appearance.

1. Specialty Coffee Shop Packaging

Coffee shops typically use Flat Bottom Coffee Bags with Valves for take-out packaging of roasted beans. The bags maintain the natural state of the roasted beans, ensuring stable aroma during transportation and storage for both pour-over and espresso beans. The stable flat bottom structure makes the bags easier to display on store shelves. Coffee Bags with Valves can be customized with brand printing and various sizes, helping to enhance the professional appearance of retail packaging.

2. Large-Scale Packaging for Roasting Factories

Factory bulk packaging requires bags with excellent moisture and oxygen barrier properties. The multi-layer composite structure and degassing valve help control the entry of external air, suitable for large packaging needs of 500g or 1kg. The valve releases gases produced during the initial stages of roasting, allowing the packaging to maintain a stable form during transportation and storage. Coffee Bags with Valves are also easy to automate filling at the production end, improving processing efficiency.

3. E-commerce Platform Sales Packaging

Online sales require packaging with a stable appearance and resistance to compression. Flat Bottom Coffee Bags with Valves maintain bag integrity during long-distance shipping, ensuring that the quality of the coffee beans is not affected by moisture or oxygen. The degassing valve reduces bulging caused by internal pressure changes, providing consumers with a better experience upon receiving the product. Customized printing helps enhance online brand recognition.

4. Packaging for Premium Gift Boxes

Many coffee gift boxes use Coffee Bags with Valves as inner bags, providing stable support for the overall structure of the gift box. The flat bottom structure combined with multi-layer materials enhances the protection of the contents, keeping the gift box stable during display and transportation. The degassing capability of the valve allows the roasted beans to maintain a better state within the gift box, suitable for holiday gifts or corporate customized projects.

5. Packaging Needs for Coffee Training Institutions

Coffee training institutions often need to package beans of various roasting levels and origins. Flat Bottom Coffee Bags with Valves provide clear labeling and classification space. Customizable materials and printing allow institutions to easily showcase different coffee attributes in their educational courses. The degassing structure ensures that the roasted beans maintain stable quality from course preparation to student use, enhancing the teaching experience.