David Wojin Coffee Valve

WOJIN Showcases High-Standard One-way Degassing Valves at Shenzhen Coffee Expo

WOJIN promoted its brand at the Shenzhen Coffee Expo and will continue to produce high-quality products to high standards.

Learn about WOJIN one-way degassing waterproof valve (WJ1901-FW)

When some products containing liquid and need to be degassing to maintain freshness, we need to use a bag with one way degassing waterproof valve.

How to maintain the freshness and extend the shelf life in pet food packaging

Consider using packaging with one way degassing valve to help maintain the freshness of the pet food and extend its effective feeding period to improve the quality.