Convenient and easy to use; 10 absorber packs of 500cc oxygen absorbers. Use 1 500cc oxygen absorber in a 1-gallon Mylar Bag. Use 2 500cc oxygen absorbers in a 2-gallon Mylar Bag. Use 4 500cc oxygen absorbers in a 5-gallon Mylar Bag. Remember the acronym MOLT when you are thinking about your food storage: the four enemies of long-term food storage are Moisture, Oxygen, Light, and Temperature. Using Mylar® Bags and Oxygen Absorbers inside a 1, 2 or 5 gallon bucket is your best defense against these enemies. Oxygen absorbers are made of a chemical compound, the active ingredient of which is powdered iron oxide. Our absorbers are completely safe. While they are not edible, they are not toxic. No harmful gases are created, and the oxygen does not remove the fresh smell and taste of the product. Depth: 0.5.