Pyrex® glass is made in France in Châteauroux in the most unique oven in the world! Thanks to our know-how inherited from a long tradition and a cutting-edge innovation process, the Pyrex® brand represents the one of the European leaders in glass manufacturing. Pyrex® glass is unique. It is a tempered borosilicate glass, of superior quality and high resistance to thermal and mechanical shock. It is perfectly suited to extreme temperatures, from -40° to 300°, and has great resistance to thermal shock of up to 220°. All Pyrex® glass products are safe to use in the oven, freezer and vice versa. They defy all culinary expectations, from preparation to direct serving, including the entire cooking process, storage and reheating.