Le Creuset Matte Collection Commercial Quality Stoneware. Versatile - oven, microwave, grill and freezer safe. Oven to table - attractive and will keep food warm. Dishwasher safe. Easy clean chipping, scratching, cracking and stain resistant surface. Oven safe up to 260°C / 500°F / Gas Mark 9. Le Creuset 5 Year Limited Guarantee.