proof spiritproof spirit
an alcoholic liquor, or a mixture of alcohol and water, containing by volume 50 percent (in Great Britain and Canada 57.10 percent) ethyl alcohol at 15.6°C (c. 60°F)
An alcohol-water mixture or a beverage containing a standard amount of alcohol, the US standard being 100 proof, or 50 percent, of ethyl alcohol by volume at 60°F (approximately 15.6°C).
- In the UK = 57.1% by volume
- In the US = 50% by volume