20 Oct 2018
Coffee beans must stay away from oxygen to keep the aroma of coffee. For this reason, the one way degassing valve recommends storing your coffee beans in a sealed container in a dry, cool place.
Roasted coffee beans can only remain fresh for about two weeks once they are exposed to air. After this, the taste of the beans becomes dull and stale, and the fat of the coffee quickly emits a rotten oil odor. Therefore, the coffee beans should be consumed as soon as possible after opening.
In order to allow you to enjoy the fragrance of freshly ground coffee beans, you should use a light-shielded container to preserve the unique aroma of the coffee beans.
Originally published 20 Oct 2018, updated 20 Oct 2018.
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.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.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.