All the Le Creuset cookware is made from enameled cast iron. Cast iron has been used for cooking utensils since the Middle Ages. The Le Creuset factory is at Fresnoy-Le-Grand in Northern France.

In 1925, the foundry began producing Cast Iron by hand-casting molten cast iron in sand molds-still the most delicate stage of the production process. Even today, after casting, each mold is destroyed and the cookware is polished and sanded by hand then scrutinized for imperfections. Once declared good for enameling, the items are sprayed with two separate coats of enamel and fired after each process at a temperature of 800°C. The enamel then becomes extremely hard and durable, making it almost completely resistant to damage during normal use.

Since much of the finishing is done by hand, each Le Creuset Cast Iron cookware piece is completely unique.