Sauternes (wine) Château d'Yquem, can be very expensive, due largely to the very high cost of production. Barsac lies within Sauternes, and is entitled to use either name. Somewhat similar but less expensive and typically less-distinguished wines are produced in the neighboring regions of Monbazillac, Cérons, Loupiac and Cadillac. In the United States, there is a semi-generic label for sweet white dessert wines known as "sauterne" without the "s" at the end and uncapitalized. As in most of France, viticulture is believed to have been introduced into Aquitania by the Romans. The earliest evidence of sweet wine production, however, dates only to
White wine balance different from red wine from which the tannic structure is removed. The balance is no longer based only on alcohol and acidity: this is the factor that explains the difficulty of making a white wine. For sweet and fortified white wines the presence of sugar adds a parameter to balance the alcohol and acidity. Maturing in the barrel gives wine a wooded touch and tannins from the oak give it structure. The strongest wines, as in some grand crus of Sauternes (Château d'Yquem for example) even support ageing in new wood. Ever since glass containers have existed, specialised glasses