one way valve join shanghai hotelex

04 Apr 2016

On March 29, we WOJIN one way valve team join in the HOTELEX Shanghai! In the show, we meet lots of cafe friends and company! Wow! Great Show!

Tag: one way valve

Originally published 04 Apr 2016, updated 04 Apr 2016.


How do you keep coffee fresh after opening

10 Jul 2020

Remember 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 2020

Roasted coffee cannot be put directly into a sealed package, because the coffee need to "breathe", that is, the carbon dioxide gas will be released.

Why do coffee packs have an aroma hole if it is recommended to store coffee in an air tight container

26 Jun 2020

This is a hole punched before installing the degassing valve, which purpose is to discharge the CO2 released and avoid the oxidation of coffee.