Food-Grade Material: Our oxygen absorbers are made of food-grade material and have passed strict food safety testing, allowing them to be safely stored with food without producing unpleasant odors commonly found in inferior products, and they help preserve the original taste of food. Professional slow-absorbing design: Our oxygen absorbers feature a slow oxygen-absorption rate, providing ample time to seal food properly and use remaining packets efficiently. Unlike fast-acting absorbers that may lose effectiveness during the sealing process, ours maintain performance for up to 5 hours, ensuring reliable protection while allowing flexibility in use. Reduced waste: Each pack contains 10 individually sealed oxygen absorbers, making it easy to use only what you need without compromising the effectiveness of the remaining packets. This design minimizes waste caused by exposure due to improper resealing and offers greater convenience for long-term food storage. Wide application: The set includes 100 pieces (10 packs of 10) of 200cc oxygen absorbers, suitable for use with most mylar bags, canning lids, and various dry food items such as cookies, snacks, spices, cereals, flour, and pasta. Ideal for long-term dry food storage. Note: Oxygen makes up approximately 21% of air, and absorbers are effective only within this limit; adding excess units does not increase absorption capacity. We are committed to providing high-quality products and customer satisfaction. If you have any questions about the product, please reach out for assistance.