Total acidity: Total acidity is the sum of volatile acidity and fixed acidity. Wine contains a number of mineral and organic acids. Some of these wine acids are entirely combined with bases; they are in the state of salts and therefore do not intervene in the perception of the acidity of the wine. However, some organic acids are only partially saturated with bases or salified. Some of their molecules are in the state of salts, others are free...
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