Oxygen Absorbers 500cc (50 pack) Protect packaged foods and other products against spoilage, mold growth, color change, rancidity, loss of nutritive values, insect damage, etc. Produced in packet form using food grade ingredients, they irreversibly absorb oxygen inside sealed packaging to less than 0.01% and maintains this level. By adding 1 or 2 packets to a 6 gallon bucket of grain, they will virtually remove all existing oxygen that remains after the product has been sealed for storage. Each package contains 50 packs - enough to treat 16 to 25 buckets. Weighs 1.09 lbs. for pack of 50.