World Centric® 20 oz NoTree™ hot cups are made from 100% sugarcane paper with no bleaching, meaning no trees were cut down to make them. Like all of our paper cups, these paper-free cups have a lining made from corn, not petroleum, making them compostable in a commercial composting facility. These disposable hot cups are great for warm beverages like coffee, tea, and hot cocoa. Composts in 2 to 4 months in a commercial composting facility. Not microwavable.