World Centric compostable clear cold cups are made from PLA, (a polymer made from plants). Great for cold drinks and sauces, these cups are certified compostable in a commercial facility, which may not exist in your area. PLA products should be stored in a cool place below 110° F and out of direct sunlight. World Centric is a certified B Corporation that strives to meet rigorous standards of social and environmental performance, transparency and accountability. We donate 25% of our profits to grassroots organizations around the world. Learn more on our website, worldcentric.com.