Fermentation is the fundamental process in winemaking through which grapes are made into wine. Yeast fermentation is key to ...

Since Pasteur's work, several types of microorganisms (including yeast and some bacteria) have been used to break down pyruvic acid to produce ethanol in beer brewing and wine making. The other by ...

Then winemakers take this base wine and add more sugar and yeast to each bottle to trigger a secondary fermentation. The carbon dioxide produced during that secondary fermentation is responsible for ...