Food Grade Silicone Coffee Degassing Valve Zero Additives Coffee Packaging Valve

Technical Specifications

How It Works

The one-way degassing valve operates on a simple differential pressure principle:

1. Degassing Phase: Freshly roasted coffee releases CO₂ as a byproduct of post-roast chemical reactions. As internal bag pressure builds and exceeds the calibrated opening threshold (typically 2-3 mbar), the pressure forces the silicone diaphragm to lift.

2. Gas Release: CO₂ and other volatile gases escape through the valve to the outside atmosphere while the filter (where equipped) prevents coffee particles from clogging the mechanism.

3. Automatic Sealing: Once internal pressure drops below the closing threshold, the silicone diaphragm returns to its sealed position, instantly blocking external oxygen, moisture, and contaminants from entering the bag.

4. One-Way Protection: The valve opens exclusively when internal pressure exceeds external pressure—ensuring that outside air never enters the package.

Applications

Core Competitive Advantages 

• Food-Safe Eco Production: Zero harmful additives, FDA & EU certified to eliminate packaging safety risks.
• 2M+ Cycle Durability: Premium silicone diaphragm outperforms rubber alternatives, cutting after-sales costs.
• Full Material Compatibility: Fits all common coffee pouch materials to simplify inventory management.
• Flavor Lock Degassing: Releases CO₂, blocks oxygen to extend coffee shelf life by 30%+.
• High-Speed Machine Ready: Precise dimensions for zero-failure automatic heat sealing.
• B2B Cost Efficiency: Integrated molding reduces costs, supports bulk & custom orders