South West France (wine region) the grapes to be harvested earlier and the wines to be of a stronger alcohol level. Many Bordeaux wine merchants saw the wines of the "High Country" as a threat to their economic interest and during the 13th & 14th century a set of codes, known as the "police des vins", were established which regulated the use of the port of Bordeaux for wine trading. The "police des vins" stated that no wine could be traded out of Bordeaux until the majority of Bordelais wine had already been sold. This had a devastating effect on the wine industry of the
Regional Bordeaux AOCs Bordeaux Blancs. All rosé and clairet wines are produced under regional appellations. The vineyard area devoted to the production of Bordeaux AOC wines is approximately , of which are used for red wine and for white wine. Average yearly production is 3,300,000 hectolitres, corresponding to approximately 431 million 75 cl bottles, with 2,300,100 hectolitres of red wine and 304,000 hectolitres of white wine. The maximal authorized yield for Bordeaux AOC is 55 hectoliter per hectare, and the alcohol level of the wine must be between 10 and 13 volume percent. Dry white Bordeaux may not have more than 4 grams