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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WOJIN Participated in Two Exhibitions in August 2025

02 Sep 2025

WOJIN participated in two coffee exhibitions, dedicated to providing global partners with higher-quality products and reliable support.

Building a Stable Degassing System 18 Series Enhances Packaging Quality

21 Aug 2025

WOJIN 18 Series degassing valves offer enhanced freshness and packaging professionalism, making them an ideal choice for quality driven brands.

Coffee Bean Storage Container Debut Designed for Freshness Inspired by Aroma

15 Jul 2025

The coffee bean storage container is designed with a coffee degassing valve that releases CO₂ while preventing air, moisture, and odors from entering.

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