Wikipedia
Duralex
Duralex is a French tempered glass tableware and kitchenware manufacturer located in La Chapelle-Saint-Mesmin in Loiret. Using a technique developed in the 1930s by Saint-Gobain, molded glass is heated to 600 degrees Celsius, then cooled very quickly, giving it an impact resistance twice superior to normal glass.
The "Picardie" tumbler and the "Gigogne" glass are two of the company's best-known products. The Gigogne glass is in the permanent collection of the Paris Musée des Arts Décoratifs, Paris.
The magazine This Old House called Duralex’s OvenChef glass baking dishes one of the best new home products of 2014, citing the dishes' ability to withstand large temperature swings without shattering.