These packets absorb the oxygen in stored dry food to help preserve product quality and protect the food from insects. To be effective, packets should be used only in containers that are a barrier against moisture and oxygen. Containers that work well with absorbers are foil pouches, metal cans with seamed lids, glass jars with gasketed metal lids, and PETE plastic bottles with twist-on lids.
Products stored with oxygen absorbers should be low in moisture and oil content. Unused absorbers can be stored in glass canning jars.
