Oxygen Absorber is the highest quality in the industry for Long-Term Food Storage , and have Anti oil function so could use for without oil food and with much oil food. Oxygen Observers for Food can keep the the taste and color of spices, grains, beans, pasta, grains, and dehydrated vegetables. Wide range of application, suitable for Mason tank, polyester film bag, and vacuum bag. Widely used for food storage, reducing food cost. Safe and reliable, healthy for use.