... packaging, 2. This oxygen absorber can decrease the oxygen in the air in the hermetic package to below 0.1% or less ... with proper packaging and sealing. Applications:Food: cake, moon cake, battercake, pastry, etc.Pet food: cat food, dog food, fish food, etc.Animal products: beef jerky ... health medicines. Others: tea, tobacco, documents, paintings, electronics, equipment. Natural Food Preservative