Standard glass (alcohol content)

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The standard glass (also referred to as the alcohol unit) is a unit of measurement used in many countries, but not defined in the same way everywhere, which allows the amount of alcohol consumed when consuming an alcoholic drink to be specified regardless of the volume and alcohol content of the liquid consumed. It is used in the public health field , for example in guidelines on alcohol consumption .

Germany and Switzerland

In Germany and Switzerland , a standard glass corresponds to around 10 to 12 grams of pure alcohol ( ethanol ), which at a density of 0.79 g · cm −3 (20  ° C ) corresponds to around 12.5 to 15 milliliters . Since the amount of alcohol per actual glass of drink consumed can vary greatly depending on the alcohol content and serving size, a standard glass corresponds to an actual glass in many, but by no means in all cases. For beer with an alcohol content of 5%, the standard glass corresponds to 250 to 300 ml.

Calculation examples Germany / Switzerland
drink Alcohol content in % by volume Serving size in ml Amount of ethanol in g Standard glasses
Alcopops 5% 300 12 1
Big beer 5% 500 18.75 2
Glass of wine 13.5% 150 16.2 1.5
liqueur 20% 20th 3.2 0.3
Mojito 40% 60 19.2 2
Martini 15% 100 12 1
whiskey 40% 40 12.8 1

Austria

A standard Austrian glass corresponds to 20 g of pure ethanol. It therefore contains about twice as much alcohol as a standard glass in Germany and Switzerland; the other way around, an actual glass of alcoholic drink corresponds to only half as many Austrian standard glasses as standard glasses according to the German or Swiss definition.

Other countries

In English-speaking countries, the standard glass is mostly referred to as the standard drink (in the United Kingdom, however, as an alcohol unit ). In the USA and Canada a standard glass is equivalent to 14 grams of alcohol, in Australia , New Zealand , India and Ireland 10 grams, and in the UK 8 grams. According to a comparative study from 2015, this makes the British standard the strictest of around 30 national standards in Europe; in all other countries surveyed there, with the exception of Austria, the definition was between 10 and 16 grams. The British definition entails, among other things, a simple calculation method; according to it, the alcohol content of a drink can be determined in alcohol units according to the formula alcohol units = alcohol content in percent by volume · glass content in liters .

Individual evidence

  1. ↑ Alcohol: Unsuspecting Drinkers. In: focus.de . May 19, 2008. Retrieved September 17, 2018 .
  2. ↑ Study on alcohol: No way in moderation ... In: tagesschau.de . August 24, 2018. Retrieved September 17, 2018 .
  3. ↑ Frequently asked questions: How can you drink alcohol with low risk? In: drugcom.de. Federal Center for Health Education , accessed on September 15, 2018 .
  4. ↑ a b c d Deirdre Mongan, Jean Long: Standard drink measures in Europe - Peoples' understanding of standard drinks and their use in drinking guidelines, alcohol surveys and labeling. (PDF; 758 KByte) In: Reducing Alcohol Related Harm. Health Research Board (Ireland), May 22, 2015, accessed September 15, 2018 .
  5. ↑ Frequently asked questions: What is a standard lens? In: drugcom.de. Federal Center for Health Education (Germany), accessed on September 15, 2018 .
  6. ↑ a b The standard glass of alcohol. In: alcohol-facts.ch. Federal Office of Public Health (Switzerland), accessed on September 15, 2018 .
  7. ↑ Entry on ethanol. In: Römpp Online . Georg Thieme Verlag, accessed on March 22, 2015.
  8. ^ Alfred Uhl, Sonja Bachmeyer, Julian Strizek: Handbook alcohol - Austria . 7th edition. 1: Statistics and calculation bases. Health Austria , Vienna January 2018, p. 7–8 ( online as PDF, 2.0 MB, at bmgf.gv.at ).
  9. ↑ a b Alcohol units. National Health Service (UK), accessed September 15, 2018 .
  10. ↑ What's a "Standard Drink"? In: niaaa.nih.gov. National Institute on Alcohol Abuse and Alcoholism of the National Institutes of Health , accessed September 15, 2018 .
  11. ↑ What's a Standard Drink? In: rethinkyourdrinking.ca. Retrieved September 15, 2018 .
  12. ↑ Labeling of Alcoholic Beverages - User Guide. (PDF; 119 KByte) Food Standards Australia New Zealand, November 2014, p. 6 , accessed on September 15, 2018 (English).
  13. ↑ Standard drink. In: alcoholwebindia.in. Retrieved September 15, 2018 .