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For example, 80 proof Vodka. What does 80 proof mean?

1 Answer


The proof number (in the US) is twice the percentage of alcohol (ethanol) by volume, so 80 proof vodka is 40% alcohol by volume. The history of why it's called 'proof' is somewhat involved.


xix TheOtherTink

And what's scary is you didn't have to look that up. ;)

TheOtherTink TheOtherTink

Well, um... I didn't have to look up the proof number being twice the alcohol percentage, but the old gunpowder test to determine the alcoholic strength for tax purposes was new to me. (hic... 'scuse me!)  :D

xix TheOtherTink