Ôcuisine® rectangular glass casseroles are just perfect for romantic dinners or day to day use. The clear glass allows you to see what is going on in the oven without having to open it or remove the lid. You can then, be sure that your meal will be perfectly cooked. As for Ôcuisine® other glass products, glass casseroles are made from borosolicate glass in France. This safe material is thermal shock resistant, up to 220°C, going from -40°C to +220°C. You can easily clean your dishes putting them directly in the dishwasher after usage.