About Wojin

Since its establishment in 2012, Wojin Plastic Products Factory has focused on the R&D and production of one-way degassing valves and semi-automatic valve applicator. It has brought in a fully automatic production line from Japan with a daily production capacity of 200,000 and a product qualification rate of 99.9997%. The company strictly controls product quality, strictly monitors each step of the product manufacture, and implements the 6sigma management. We guarantee the delivery on time and have 24-hour online customer support. Let our "coffee degassing valve retains the aroma of your coffee".
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How Does a Coffee Bag One-Way Air-Valve Work

02 Aug 2020

The external oxygen will be stopped from entering the bag, so that the package is in a working state, thereby protecting the freshness of the food in the bag.

How do you store coffee long term

25 Jul 2020

When storing the coffee, we need to avoid light and heat, and keep it in a dry environment, we then need to use coffee packaging bags with coffee valves.

Why do Bags of Coffee Have that Valve in the Front

19 Jul 2020

The one way degassing valve can not only discharge the internal gas, but also prevent the external oxygen and pollutant from entering in the coffee bag.