Sparkling Wine Production - Harvest and Primary Fermentation

Harvest and Primary Fermentation

Grapes used for Champagne are generally picked earlier, when sugar levels are lower and acid levels higher. Except for pink or rosé Champagnes, the juice of harvested grapes is pressed off quickly, to keep the wine white. The first fermentation begins in the same way as any wine, converting the natural sugar in the grapes into alcohol while the resultant carbon dioxide is allowed to escape. This produces the base wine. This wine is not very pleasant by itself, being too acidic. At this point the blend, known as the cuvée, is assembled, using wines from various vineyards, and, in the case of non-vintage Champagne, various years.

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