The Eco-Products EP-ECOLID-8 EcoLid white plastic lid seals to a hot cup to help prevent leaking, is made with PLA, a plant-based plastic, and fits 8 oz. World Art and GreenStripe hot cups (sold separately). The cup is made from a form of PLA (polylactic acid) biopolymer (Ingeo), which is made from corn, a renewable resource. The PLA has a crystalized formulation for increased strength and a heat tolerance of up to 200 degrees F. This product meets the D6400 standards of ASTM International, formerly known as the American Society for Testing and Materials, for being compostable in municipal and industrial composting facilities. It is also certified by the Biodegradable Products Institute (BPI) as compostable.Disposable food service products are used to store, insulate, transport, prepare, and serve food and drink. They may be made of paper, plastics, or metal foil. Food service products for freezing items protect their contents from freezer burn, contamination, and drying. Microwavable food service products are safe for use to heat food in a microwave. Compostable food service products biodegrade about as fast as yard trimmings and food scraps, and disintegrate so that no large plastic fragments remain.Eco-Products manufactures recycled and biodegradable food-service disposable products and janitorial supplies. The company, founded in 1990, is headquartered in Boulder, CO.