Made from FSC[R] paper with PLA, (a polymer made from plants) lining. These disposable hot cups are great for warm beverages like coffee, tea, and hot cocoa, and are safe for liquids up to 220°F. Our coffee cups are compostable, eco-friendly, and are freezer safe. They are certified compostable in a commercial facility, which may not exist in your area. Not microwavable.