Château Margaux is a large 90 hectare property which produces over 30,000 cases per year and is located in the centre of the Margaux appellation. The vineyards (Cabernet Sauvignon 75%, Merlot 20%, Cabernet Franc 2%, Petit Verdot 3%) lie on a sandy-stone topsoil, beneath which is to be found gravel and then clay. The wine is fermented in a mixture of stainless steel vats and oak casks and is matured for 18 months in 100% new oak barriques.