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
Globalization of wine has made the big companies less tolerant of blends of obscure grapes, instead preferring to market 'big name' varietals such as Cabernet Sauvignon, Merlot, Pinot noir, Syrah (Shiraz), Chardonnay, Sauvignon blanc and Riesling. Another growing trend has been the practice of the blending of bulk wine from other countries with local wine. In some cases, a wine marketed as a local product may be sourced entirely from elsewhere. Regulations on this practice vary widely, depending on the jurisdiction. The Judgment of Paris in 1976 and subsequent wine competitions helped winemakers throughout the New World realize that they could make wines