What is the system of measure and expressing alcoholic content?

Answer 1

It really depends on the spirit, I personally have seen from as low as 35 proof (17.5%) to 190 proof (95%). It just depends on the brand, and the laws of the country/region in which it is being sold.

Answer 2

An alcoholic beverage's amount of alcohol is represented by the proof number, the proof number is double the percent of alchol in the drink. Barcardi 151 has a proof number of 151, and therefore is made of 75.5% alcohol.

Answer 3

It depends on the type of distillation, the solvents and solutes present, their initial concentrations, and a few other things. But if you are referring to heated fractional distillation of ethanol from a mainly water based solution, then the short answer is you can get any concentration you want. The reason why you see 40% or 80proof so often is that to get higher proof liquor requires a sudden jump in energy requirements (eutectic point).

For more information check out ethanol water phase diagrams.

Answer 4

It depends on the type of liquors being made. You can guess the liqueurs will sit around usually 20-30% ABV (with the exception of Drambuie, which is 40% ABV), while the spirits will sit at above 30% ABV (usually at least 40% for whiskies and certain rums).

Answer 5

Percentage of alcohol in volume of liquid.

In America, also known as "proof."

Example: Vodka is 80 Proof=40% alcohol a.k.a. "ABV"= Alcohol By Volume

Answer 6

Proof, and it's double the alcohol percentage.

Answer 7

Proof