Wine color practice of saignée (exposing wine to red grape skins for only a short period of time in order to give it a lighter feel closer to that of white wine) or by blending a white wine with a red wine. The presence of a complex mixture of anthocyanins and procyanidins can increase the stability of color in wine. As it ages, the wine undergoes chemical autoxidation reactions involving acetaldehyde of its pigments molecules. The newly formed molecules are more stable to the effect of pH or sulfite bleaching. The new compounds include pyranoanthocyanins like vitisins (A and B), pinotins and
French wine this trend is likely to continue with further EU expansion. French law divides wine into four categories, two falling under the European Union's Table Wine category and two falling under the EU's "Quality Wines Produced in Specified Regions" (QWPSR) designation. The categories and their shares of the total French production for the 2005 vintage, excluding wine destined for Cognac, Armagnac and other brandies, were: Table wine: QWPSR: The total French production for the 2005 vintage was 43.9 million hl (plus an additional 9.4 million hl destined for various brandies), of which 28.3% was white and 71.7% was red or rosé.