If You Care Compostable Food Bags are made from potato starch from non-GMO starch potatoes blended with a certified, fully compostable polymer. No plasticizers are added.
The potato starch used to make If You Care Compostable Food Bags comes from starch potatoes, which are not grown as a food source, but only for starch production. These potatoes are too high in starch to be good for food. Therefore, there is no diversion from food supplies. In addition, to produce the same amount of starch from these potatoes as from corn requires 40% less land. Other compostable bags are made from corn which requires more water, but potatoes require no irrigation, and need only normal rainfall.
If You Care Compostable Food Bags are completely polyethylene free and do not contain plasticizers.