In general, 4 oz, 12 oz, 1 lb or 5 lb coffee are impossible to be drunk up at once, however, coffees would be less fresh if they are exposed to more oxygen, coffee bags with valve and zipper emerge as the times require, zipper resealable coffee pouches with valve close the the bags before next use, and the one way degassing valve refuses oxygen and moisture in, but let carbon dioxide out, which preserve freshness and maintain the quality.
Oxygen, moisture, and light exposure are primarily responsible for losing flavor, aroma and freshness, so when choosing coffee bags or pouches, many roasters would think whether or not a bag or pouch would protect coffee beans or powder from oxygen, moisture and light exposure. Foil coffee bags with valve and zipper would be the best choice.
Too much exposure to light would break down coffees’ organic compounds like proteins, vitamins, fats, pigments, etc., once these compounds are broken down, coffees will lose its flavors. Zipper resealable coffee bags with valve is foil lining, it is combination of foil, plastic, paper, etc., so it can protect coffee beans or powder from exposing to light.
With a zipper, customers can reseal branded coffee bags conveniently, in this case, coffees wouldn’t be exposed to oxygen and moisture too much, which matain coffee fresh and flavorful.
One way degassing valve is another good partner of coffee bags or pouches, valve is a one way vent which allow carbon dioxide to escape from the package but prevent gases and moisture from entering, which preserve freshness and maintain the quality of coffees.
How much does zipper coffee bags with valve in China cost? Price of coffee bags with valve and zipper varies according to your bag measures, designs, etc., please contact us to get a wholesale price.
