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A "standard drink" of hard liquor does not necessarily reflect a typical serving size, such as seen here. A standard drink is a notional drink that contains a specified amount of pure alcohol. The standard drink is used in many countries to quantify alcohol intake. It is usually expressed as a measure of beer, wine, or spirits.
In countries without labeling, it is possible to calculate the pure alcohol mass in a serving from the concentration, density of alcohol, and volume: = For example, a 350 ml (12 US fl oz) glass of beer with an ABV of 5.5% contains 19.25 ml of pure alcohol, which has a density of 0.78945 g/mL (at 20 °C), [ 32 ] and therefore a mass of 15.20 ...
In practice, most bars will use the same size measure as for the four spirits. [ 5 ] The 1963 act formalized the legal measures by which spirits and other alcoholic beverages should be dispensed, namely 1 ⁄ 4 , 1 ⁄ 5 or 1 ⁄ 6 gill (36, 28 or 24 ml), but this was replaced in 1985 when 25 ml or 35 ml were permitted. [ 5 ]
Guidelines generally give recommended amounts measured in grams (g) of pure alcohol per day or week. Some guidelines also express alcohol intake in standard drinks or units of alcohol. The size of a standard drink varies widely among the various guidelines, from 8g to 20g, as does the recommended number of standard drinks per day or week.
Alcohol by volume (abbreviated as alc/vol or ABV) is a standard measure of the volume of alcohol contained in a given volume of an alcoholic beverage, ...
A metric fifth of Dewar's Scotch whisky. A fifth is a unit of volume formerly used for wine and distilled beverages in the United States, equal to one fifth of a US liquid gallon, or 25 + 3 ⁄ 5 U.S. fluid ounces (757 milliliters); it has been superseded by the metric bottle size of 750 mL, [1] sometimes called a metric fifth, which is the standard capacity of wine bottles worldwide and is ...
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There is no official size for a single shot, except in Utah, where a shot is defined as 1.5 US fl oz (44.4 ml). [22] Elsewhere in the U.S., the standard size is generally considered to be 1.25–1.5 US fl oz (37–44 ml). [23] [24] A double shot in the U.S. may be 2 US fl oz (59.1 ml) [25] or more. However in most of the U.S. 1.5 US fl oz is ...