Bordeaux wine the château's preferred style. In addition to mixing wine from different grape varieties, wine from different parts of the vineyard is often aged separately, and then blended into either the main or the second wine (or sold off wholesale) according to the judgment of the winemaker. The wine is then bottled and usually undergoes a further period of ageing before it is released for sale. The Bordeaux wine region is divided into subregions including Saint-Émilion, Pomerol, Médoc, and Graves. The 60 Bordeaux appellations and the wine styles they represent are usually categorized into six main families, four red based on
Bordeaux wine confluence of the Dordogne and Garonne Rivers, which flow into the Gironde. These rivers define the main geographical subdivisions of the region: In Bordeaux the concept of "terroir" plays a pivotal role in wine production with the top estates aiming to make "terroir" driven wines that reflect the place they are from, often from grapes collected from a single vineyard. The soil of Bordeaux is composed of gravel, sandy stone, and clay. The region's best vineyards are located on the well-drained gravel soils that are frequently found near the Gironde river. An old adage in Bordeaux is the best estates