Bordeaux wine almost universally used. Chaptalization is permitted, and is fairly common-place. Fermentation then takes place, usually in temperature controlled stainless steel vats. Next the must is pressed and transferred to barriques (in most cases) for a period of ageing (commonly a year). The traditional Bordeaux barrique is a 225 litre oak barrel. At some point between pressing and bottling the wine is blended. This is an integral part of the Bordeaux wine making process, as scarcely any Bordeaux wines are varietals; wine from different grape varieties is mixed together, depending on the vintage conditions, so as to produce a wine in
South West France (wine region) not used in Bordeaux are common, such as Tannat. Finally, in the areas closest to the Pyrenees, wines are made from local varieties, such as Gros Manseng and Petit Manseng. The south-west region was first cultivated by the Romans and had a flourishing wine trade long before the Bordeaux area was planted. As the port city of Bordeaux became established, wines from the "High Country" would descend via the tributaries of the Dordogne and Garonne to be sent to markets along the Atlantic coast. The climate of the inland region was generally warmer and more favorable than in Bordeaux, allowing