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Anonymous

15th January 2022 at 18:49
You say that in the USA “proof” is equal to twice the ABV. I take it then that “proof” as was usually used in the U.K. (but now ABV is used) was different because I’m sure that 70° proof was equal to 40% ABV.
16th January 2022 at 16:57
Prior to 1816, the proof of alcohol was tested with gunpowder. Please follow the link to "overproof and Navy strength" in the text above.