ANECO 1.3 gallon compost bags are Extra Thick with 0.67 mils and are made from plant-based materials such as corn starch, potato starch, compostable polyesters. These 1.3 gallon trash bags are 100% compostable. These 1 gallon compost bags also meet ASTM D6400 standards of USA, OK Compost Home and Seedling standard. Extra thick and strong, ANECO bpi certified compostable bags are Certified 100% Compostable and eco-friendly. Use these compostable plastic bags for food waste, kitchen scraps or even for wood trimmings, leaves, trash in the garden, bathroom, outdoor activities. These compostable bags 1 gallon decompose at a faster rate when exposing to the right condition so we recommend storing them properly as follows: Always allow food waste to cool before putting in these compost bags 1.3 gallon. The bacteria in the animal waste disintegrates the bag very fast as since they are made from plant-based material. Keep these bio degrading trash bags in a cool, dry place. Sun and water will affect the quality of these compostable garbage bags. These compost bin bags with 0.67 mil thickness are the strongest in its class of composting bag 1 gallon in particular or compost bags in general, 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.