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
History of Bordeaux wine style of dry white Bordeaux favoured today, with almost 100% Sauvignon Blanc and a heavy influence of new oak, the traditional Entre-deux-Mers whites had a high proportion of Semillion and were made in either old oak barrels or steel tanks. Starting in the 1960s and 1970s, these vineyards were converted to red wine production (of Bordeaux AOC and Bordeaux Supérieur AOC), and the production of white wine has decreased ever since. Today production of white wine has shrunk to about one tenth of Bordeaux's total production, with 11.0% of the vineyard surface in 2007 used for white wines (7.8% for