Fellow - Atmos Vacuum CanisterNine times out of ten, were pretty big fans of oxygen. However, when it comes to our beans, we want to keep the exposure of oxygen to a minimum. This vacuum sealed canister by Fellow allows YOU to control that exposure and to keep your coffee staying fresher for longer. This canister holds up to 16oz of coffee and or various weights of whatever else you want to protect from oxidation. We wouldnt be offended if herbs or snacks ended up in there.