The grapes for Moulin d'Issan come from the historically owned vineyard that abuts the château's driveway: one side is Margaux, the other a bit too close to the Gironde to be called Margaux is classified simply as Bordeaux Supérieur. The blend is 50% Cabernet Sauvignon and 50% Merlot and the vines average age is just under 20 years; the wine is aged in barrels that are already over a couple of years old for about a year. Medium-bodied, it shows plum, blackberry and crème de cassis flavours.