Alcoholic Fermentation

The conversion of grape sugars into alcohol and carbon dioxide by yeast.

<h2>What it means in wine</h2> <p>Alcoholic fermentation is the central process that turns grape juice or must into wine. Yeast may be selected by the winemaker or come from the winery and vineyard environment.</p> <h2>Why it matters</h2> <p>Fermentation affects alcohol level, aroma, texture, temperature management, and final wine style.</p>