Compostable Water cups are environmentally friendly and durable, making them an ideal alternative to plastic cups which are are light-weight, and free of harsh chemicals, like BPA, Petroleum etc. Compostable water cups are made from sustainable cornstarch is a fantastic choice. They break down naturally and enrich the soil. These cups are perfect for your favorite cold beverages such as smoothies, iced tea, juices, beer, cocktails, and any other cold drinks. They are produced from non-toxic materials and vegetable fibers that are safe for both you and the environment.