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 do you keep coffee fresh after opening
10 Jul 2020Remember to seal the packaging bag after taking some coffee out, so the one-way degassing valve would finish its job to keep the freshness of product.
Does ground coffee need to breathe
03 Jul 2020Roasted coffee cannot be put directly into a sealed package, because the coffee need to "breathe", that is, the carbon dioxide gas will be released.
26 Jun 2020This is a hole punched before installing the degassing valve, which purpose is to discharge the CO2 released and avoid the oxidation of coffee.