Made from rapidly renewable, unbleached sugarcane paper. No trees are used to make NoTree cups. Bio-lining made from plants creates a moisture barrier. Disposable, freezer safe, and contain no wax or plastic lining. Suitable for liquids up to 220F. Great for warm beverages like coffee, tea, and hot cocoa. 100% compostable in two to four months in a commercial composting facility. Not microwavable.