Made from unbleached plant fiber, an annually renewable resource. Soak proof, freezer safe, and contain no wax or plastic lining. For use with hot or cold food items. Microwave safe. Great for restaurants, cafes, and food trucks with soup, salad, entrees, burritos, ice cream, snacks and more. 100% compostable in two to four months in a commercial composting facility. Gluten free.