"Pour it," Julian commanded.
He reached into his coat and pulled out a bottle wrapped in brown paper. He slammed it onto the counter. The thud echoed through the empty room.
In the United States, "proof" is simply double the ABV. A whiskey that is 40% ABV is 80 proof. In the UK, the proof system was historically different but has largely been replaced by ABV. Why is 40% the Magic Number?
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