Château d'Yquem is a Premier Grand Cru wine from the Sauternes, Gironde region in the southern part of the Bordeaux vineyards known as Graves. In the Bordeaux Wine Official Classification of 1855, Château d'Yquem was the only Sauternes given this rating, indicating its perceived superiority over all other wines of its type.
Yquem's success stems largely from the site's susceptibility to attack by "noble rot".
Wines from Château d'Yquem are characterised by their complexity, concentration and sweetness. A relatively high acidity helps to balance the wine's sweetness. Another characteristic for which Château d'Yquem wines are known is their longevity. With proper care, a bottle will keep for a century or more. During this time, the fruity overtones will gradually fade and integrate with more complex secondary and tertiary flavours.