Normal oxygen absorber cannot absorb carbon dioxide. our double absorption type oxygen scavenger packet is special designed to absorb both oxygen and carbon dioxide in the packaging.
When the coffee beans are baked and boiled, a large amount of carbon dioxide is generated. If the coffee beans are packed immediately after baking and boiling, the package will gradually expand and eventually rupture. In order to let the carbon dioxide escape, some coffee manufacturer exposes the coffee to the air or opens a hole in the package. However, with these methods, coffee will be oxidized and the fragrance will be lost. Now, double absorption type oxygen absorber is used to absorbs carbon dioxide.