This article answers the question “What does the proof of alcohol mean?” and discusses how different countries calculate it. Proof matters because it helps consumers and regulators understand ...

The practice of proofing alcohol dates back to centuries-old British tax laws when spirits with higher alcohol content would ...

As any high schooler who has incisively compared bottles in his or her parents' liquor cabinet can tell you, a spirit's proof is exactly twice as much as its percentage of alcohol by volume.

A spirit with 40 percent alcohol by volume, therefore, is 80 proof. But as easy as the number is to calculate, the concept of proof is more challenging. Most people have a shaky grasp of the ...

Iowa alcohol regulators are trying to make it easier for people enjoying a drink to determine how potent their beverage is.The Iowa Alcoholic Beverages Division has created a new mobile website ...

The website uses the size of a drink and the proof figure listed on the container to determine the alcohol content. Agency spokeswoman Tonya Dusold says there are many flavored malt beverages on ...