ANECO Compost Bin Bags are Extra Thick with 0.67 mils and are made from plant-based materials such as corn starch, potato starch, compostable polyesters. These small compost bags are 100% compostable. These 2.6 gallon compostable bags also meet ASTM D6400 standard of USA, OK Compost Home and Seedling standard. Extra thick and strong, ANECO compost bags for countertop bin are Certified 100% Compostable and eco-friendly. Use these small compostable trash bags for food waste, kitchen scraps or even for wood trimmings, leaves, trash in the garden, bathroom, outdoor activities. These compost trash bags decompose at a faster rate when exposing in the right condition so we recommend to store them properly as following: Always allow food waste to cool before putting in these food scrap bags. The bacteria in the animal waste disintegrates the bags very fast as since they are made from plant-based material. Keep these bags in a cool, dry place. Sun and water will affect quality of these bags. These bags with 0.67 mil thickness are the strongest in its class of 3 gallon compost bags, but they decompose with exposure to heat, water, and moisture like they are meant to. ANECO Compostable bags for kitchen compost bin are made of plant starch, which is completely harmless to the human body because they do not contain any harmful chemicals and do not emit bad or irritating odors. They might have a little corn starch fragrance. Suitable for all groups, including pregnant women and children.