프루프 (주류)
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정의
주류의 알코올 도수 표시법으로, 미국 체계에서 프루프는 알코올 부피 백분율(ABV)의 정확히 2배이다.
설명
A spirit labeled 80 proof is 40% ABV—the standard for most vodkas, gins, and whiskeys. The UK historically defined 100 proof as the minimum concentration at which gunpowder soaked in spirit would still ignite (~57.15% ABV). The US simplified this in the 19th century to the 2x ABV definition. The EU and most countries now use ABV percentage exclusively.
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