Log In / Join Now


Browse our topics using the letters below or search for a term.

Secondary Fermentation

The process that creates the bubbles in sparkling wine. As the wine is bottled, a small amount of yeast and sugar is added before the bottle is sealed with a sturdy crown cap. The yeasts quickly start fermenting the sugars, producing alcohol and carbon dioxide. Since the gas cannot escape, it dissolves into the wine.

WineRatings+ app: Download now for 340,000+ ratings.