NatureHouse Compostable PLA Corn Plastic Cold Cups, 12oz, Clear, 50/PackA great alternative to conventional plastic. Made from PLA, a corn-based plastic, which is a natural renewable resource that requires fewer fossil resources to produce. For cold drinks only. Cups are compostable in a commercial facility in about 90 - 180 days. Cup Type: Cold; Capacity (Volume): 12 oz; Material(s): Ingeo PLA Corn Plastic; Color(s): Clear.