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
Polish wine Polish wine Polish wine has a history dating back to the Kingdom of Poland. Like other old world wine producers, many traditional grape varieties still survive in Poland, perfectly suited to their local wine hills. Modern wine-production methods have taken over in the larger wineries, and EU-style wine regulations have been adopted, guaranteeing the quality of the wine. Today, wine production in Poland is an industry with 151 officially registered wineries (2016/2017 season) to sell and produce grape table wines in Poland as defined by the national wine laws that came into being in 2008 and were updated later on.