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The press wine is blended with the free run wine at the winemaker's discretion. The wine is then kept warm and the remaining sugars are converted into alcohol and carbon dioxide. The next process in the making of red wine is malolactic conversion , a bacterial process which converts "crisp, green apple" malic acid to "soft, creamy" lactic acid ...
The natural occurrence of fermentation means it was probably first observed long ago by humans. [3] The earliest uses of the word "fermentation" in relation to winemaking was in reference to the apparent "boiling" within the must that came from the anaerobic reaction of the yeast to the sugars in the grape juice and the release of carbon dioxide.
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Large pectin molecules can affect the amount of juice yielded at pressing, ease of filtration and clarification, and extraction of tannins. Grapes contain natural pectolytic enzymes responsible for softening the grape berries during ripening, but these are not active under wine-making conditions (due to pH level, SO 2, and alcohol.) Therefore ...
The art and science of making wine. Also called enology (or oenology). Not to be confused with viticulture. Vinification The process of making grape juice into wine. Vin jaune French for "yellow wine", a wine fermented and matured under a yeast film that protects it, similar to the flor in Sherry production. Vinimatic
Malolactic fermentation can aid in making a wine "microbiologically stable" in that the lactic acid bacteria consume many of the leftover nutrients that other spoilage microbes could use to develop wine faults. However, it can also make the wine slightly "unstable" due to the rise in pH, especially if the wine already was at the high end of ...
Wine is an alcoholic drink made from fermented fruit. Yeast consumes the sugar in the fruit and converts it to ethanol and carbon dioxide, releasing heat in the process. Wine is most often made from grapes, and the term "wine" generally refers to grape wine when used without any qualification.
The traditional method for producing sparkling wine is the process used in the Champagne region of France to produce Champagne. It is also the method used in various French regions to produce sparkling wines (not called "Champagne"), in Spain to produce cava , in Portugal to produce Espumante and in Italy to produce Franciacorta .