Guard the goods. Oxygen makes coffee stale and robs your brew of its full potential. Atoms banishes air, moisture, and odors to stop your beans from aging out before you’ve enjoyed the whole bag. Twisting the lid back and forth sucks air out to prevent oxidation and extends coffee’s shelf life up to 50%. Choose between clear glass or upgrade to matte black stainless steel for an extra layer of protection from flavor-sucking sunlight.