
The term ABV, which stands for Alcohol by Volume, does not refer to the total amount of alcohol in the entire bottle but rather to the concentration of alcohol within the liquid. It is a standardized measure that expresses what percentage of the beverage's total volume is pure ethanol.
Based on the provided information, this percentage remains constant regardless of the quantity of the beverage being measured. Whether you are considering a single serving, such as a glass, or the entire contents of the bottle, the proportion of alcohol to other ingredients is the same. For example, a wine labeled with 12% ABV is composed of 12% pure alcohol by volume throughout the entire container.
Therefore, a 750ml bottle of this wine contains a total of 90ml of pure alcohol (12% of 750ml). A 150ml glass poured from that same bottle will still have an ABV of 12%, meaning it contains 18ml of pure alcohol (12% of 150ml). The ABV figure on a label indicates the uniform concentration of alcohol in the beverage, not the total quantity of alcohol in the specific container.


