Good Exhaust Plastic One Way Valves Coffee Powder Valve For Coffee Packing

Principle of Coffee Bag Powder Valve

Gas Release Mechanism:
Natural Degassing: After coffee beans are roasted, they release carbon dioxide gas over time. This gas buildup needs to be managed to prevent packaging from bulging or bursting.
One-Way Valve Design: The valve is designed to allow the outward flow of CO2 gas from inside the coffee bag to the outside environment. This helps maintain optimal internal pressure and prevents the bag from expanding due to gas accumulation.

Oxygen Barrier:
Preventing Oxidation: Oxygen is one of the primary causes of coffee degradation, leading to loss of flavor and freshness. The valve acts as a barrier, preventing oxygen from entering the bag once it is sealed.
Maintaining Quality: By minimizing oxygen exposure, the valve helps preserve the aroma, flavor, and quality of the coffee beans over an extended period.

Functionality:
Bidirectional Seal: While the valve allows gas to escape, it remains sealed against outside air. This bidirectional functionality ensures that the coffee beans are protected from external environmental factors that could compromise their quality.

Materials and Construction:
Food-Grade Materials: Typically made from food-safe materials like plastic or aluminum that do not interact with the coffee or affect its flavor.
Durable Design: Engineered to withstand the rigors of packaging, transportation, and storage while maintaining its integrity and functionality.

Integration into Packaging:
Strategic Placement: Positioned on coffee bags or pouches, usually near the top or side, where it can efficiently release gas without compromising the packaging’s airtight seal.
Compatibility: Designed to integrate seamlessly with various types of coffee packaging, including bags and pouches, ensuring uniformity and effectiveness across different products.

Product Description :

Outside diameter: about 20mm
Inside diameter: about 17mm
Thickness: about 5.3mm
Weight: about 0.85g
Opening pressure: 500pa
Closing pressure: 300pa
Shape: dish shape
Standard: national standard
Flow direction: one-way

Steps to Use a Coffee Bag Powder Valve:

A coffee bag powder valve is designed to release carbon dioxide (CO2) gas that naturally emits from freshly roasted coffee beans. It prevents the bag from bulging due to gas buildup while maintaining a barrier against oxygen.Ensure the coffee beans are freshly roasted and cooled before packaging. It’s essential to allow the beans to degas naturally before sealing them in the bag.If you are packaging coffee yourself, place the powder valve strategically on the coffee bag or pouch. The valve should typically be positioned near the top or side of the package for optimal gas release.Once the coffee beans are placed inside the bag and the valve is securely in place, seal the bag using the appropriate method. This can be done using a heat sealer or a zipper closure, ensuring the bag is tightly sealed to prevent any air from entering.Store the sealed coffee bags in a cool, dry place away from direct sunlight and humidity. Proper storage conditions help maintain the freshness and flavor of the coffee beans.If the coffee bag is equipped with a resealable closure, such as a zipper, ensure it is securely closed after each use. This helps to preserve the freshness of the remaining coffee beans.