<P> The concentration of alcohol in a beverage is usually stated as the percentage of alcohol by volume ( ABV , the number of milliliters ( ml ) of pure ethanol in 100 ml of beverage ) or as proof . In the United States , proof is twice the percentage of alcohol by volume at 60 degrees Fahrenheit ( e.g. 80 proof = 40 % ABV ) . Degrees proof were formerly used in the United Kingdom , where 100 degrees proof was equivalent to 57.1 % ABV . Historically , this was the most dilute spirit that would sustain the combustion of gunpowder . </P>
<P> The concentration of alcohol in a beverage is usually stated as the percentage of alcohol by volume ( ABV , the number of milliliters ( ml ) of pure ethanol in 100 ml of beverage ) or as proof . In the United States , proof is twice the percentage of alcohol by volume at 60 degrees Fahrenheit ( e.g. 80 proof = 40 % ABV ) . Degrees proof were formerly used in the United Kingdom , where 100 degrees proof was equivalent to 57.1 % ABV . Historically , this was the most dilute spirit that would sustain the combustion of gunpowder . </P>
the measured amount of alcohol in a drink is called
the measured amount of alcohol in a drink is called
alcohol by volume ABV
alcohol by volume ABV