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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Products
Blog
How to Choose the Right Degassing Valve for Different Coffee Packaging
27 Jul 2026This article explains how to choose the one way degassing valve for your coffee packaging application.
Why Degassing Valve Quality Matters in Coffee Packaging
30 Jun 2026One way degassing valves are a crucial detail in coffee packaging that cannot be ignored, as they can directly determine the flavor of the coffee and the brand reputation.
ISO Certified Manufacturing for Coffee Bag Valves
30 May 2026WOJIN is an ISO certified manufacturer providing stable and reliable one way degassing valves for coffee packaging.
