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The main type of alcohol present in wine, commonly known as alcohol, although this is actually imprecise. Older names are ethanol, ethyl alcohol and ethyl alcohol, and colloquially also spirit of wine. It is a monohydric alcohol because one hydrogen atom is replaced by a hydroxy group (oxygen-hydrogen). In the course of vinification, the colourless and odourless liquid is formed from the sugar during the fermentation of the must in the ratio of 51% ethanol to 49% carbon dioxide. Industrial production is carried out by distillation of wine or by hydrating ethylene. Ethanol is mostly used for sprit (addition of alcohol to the finished wine).

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