These little packets keep produce fresh–just like those highly-advertised green bags–but there’s no plastic involved. Fruits and vegetables give off ethylene gas, which causes them to ripen. When produce is stored in a refrigerator, the ethylene gas accumulates, casuing produce to ripen and spoil prematurely. These paper packets hold zeolite pellets treated with nontoxic potassium permanganate, which converts the ethylene gas into inert water and carbon dioxide, so produce lasts longer. The Organic Materials Review Institute (OMRI) has allowed the material in Produce Freshies to be used in certified organic production of food processing and handling according to the USDA National Organic Program Rules. After three months of use, you can add the power pellets to any flower, herb or natural home grown garden as an organic fertilizer.