Bordeaux wine regions Croix de Mont. All of these regions (except the Libournais) have their own "appellation" and are governed by "Appellation d'origine contrôlée" laws which dictate the permissible grape varieties, alcohol level, methods of pruning and picking, density of planting and appropriate yields as well as various winemaking techniques. Bordeaux wine labels will usually include the region on the front if all the grapes have been harvested in a specific region and the wine otherwise complies with the AOC requirements. There are about 50 AOCs applicable to the Bordeaux region. Both red and white Bordeaux wines are almost invariably blended. The permissible
History of Bordeaux wine Bordeaux's most prestigious estates and Pierre de Rauzan laid the foundation for Château Rauzan-Ségla, Château Rauzan-Gassies, Château Pichon Longueville Baron, and Château Pichon Longueville Comtesse de Lalande. In 1855, a classification system was set up that ranked the top chateaus of the Médoc according to their market price. From 1875–1892 almost all Bordeaux vineyards were ruined by Phylloxera infestations. The region's wine industry was rescued by grafting native vines on to pest-resistant American rootstock from Augusta, Missouri, the first viticultural region in the United States. All Bordeaux vines that survive to this day are thanks to this action. Some grape