Beer, wine, and hard liquor (distilled
spirits) all contain alcohol. The following common alcoholic drinks contain
equal amounts of alcohol and are often referred to as a drink or a standard
Proof is the amount of alcohol in hard liquor or distilled spirits.
The percentage of pure alcohol in the hard liquor is usually one-half the
proof. For example, a 100-proof liquor is about 50% pure alcohol. Thus, the
higher the proof, the more pure alcohol the hard liquor contains.
January 18, 2012
E. Gregory Thompson, MD - Internal Medicine & Peter Monti, PhD - Alcohol and Addiction
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