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Alcohol proof (usually termed simply "proof" in relation to a beverage) is a measure of the content of ethanol (alcohol) in an alcoholic beverage. The term was originally used in England and from 1816 was equal to about 1.75 times the percentage of alcohol by volume (ABV).
Ordinary distillation cannot produce alcohol of more than 95.6% by weight, which is about 97.2% ABV (194.4 proof) because at that point alcohol is an azeotrope with water. A spirit which contains a very high level of alcohol and does not contain any added flavoring is commonly called a neutral spirit. Generally, any distilled alcoholic beverage ...
In the United Kingdom, proof is 1.75 times the number (expressed as a percentage). [23] [20] For example, 40% alc/vol is 80 proof in the US and 70 proof in the UK. However, since 1980, alcohol proof in the UK has been replaced by alc/vol as a measure of alcohol content, avoiding confusion between the UK and US proof standards. [citation needed]
The alcohol content of the spirit can then be measured using a hydrometer and tables of density of alcohol and water mixtures. [3] A second accurate method is the ebulliometer method, which uses the difference between the boiling temperature of pure water and the boiling temperature of the beer being tested.
Map showing alcoholic beverage control states in the United States. The 17 control or monopoly states as of November 2019 are: [2]. Alabama – Liquor stores are state-run or on-premises establishments with a special off-premises license, per the provisions of Title 28, Code of Ala. 1975, carried out by the Alabama Alcoholic Beverage Control Board.
Common in U.S. bars, these devices appear visually to be the same as a free-flow pour spout, but have an internal mechanism to block the tube after a pre-defined and calibrated volume of liquid has passed, oftentimes a set of 2 or 3 balls. Because of the geometry, the bottle with one of these spouts needs to be held at a specific angle ...
Sales of any type of alcohol are legal at any store that has an off-premises liquor license, including but not limited to convenience stores and grocery stores. Bars may sell closed containers of alcohol for consumption off the premises. Drive-through liquor stores are allowed. Everclear Grain Alcohol Proof 190 (95% alcohol) is legal.
Ethanol (data page) provides detailed information about the chemical properties, physical properties, and safety measures of ethanol.