Made from unbleached plant fiber, an annually renewable resource and good alternative to petroleum-based trays. Soak proof, freezer safe, and contain no wax or plastic lining. For use with hot or cold food items, especially meat and produce. Great for restaurants, delis, grocery stores, supermarkets, meat counters, produce departments, and schools. Certified 100% compostable in two to four months in a commercial composting facility. Gluten free