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
History of French wine them on par with the nobility. Some bishoprics even moved to be closer to their vineyard holdings, such as the bishopric of Saint-Quentin which moved to Noyon near Paris and the bishopric of Langres which moved to Dijon just north of the Côte-d'Or in Burgundy. The influence of Christianity helped to create two categories of wine in Medieval France-simple, basic wine meant for daily consumption and more superior, premium wine that was reserved for impressing important guests. Various monastic orders became synonymous with certain wine regions due to their ownership of what is today considered some of most prized vineyards