Macération Carbonique

CARBONIC MACERATION, as it is referred to in English, is a type of FERMENTATION in which uncrushed grapes are placed whole into vats that are then closed. As the weight of the grapes on top crushes grapes on the bottom, juice is released and fermentation begins. This in turn releases the gas CARBON DIOXIDE (CO2), which causes other grapes to ferment, in effect, within their skins. Carbonic maceration is commonly used to ferment fruity red wines for early drinking, typically in Beaujolais and sometimes in the Loire.

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