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Bartenders pour 20% more into a short, wide glass than a tall, thin glass
Monday, September 24, 2007 7:18 am Email this article
Bartenders with an average of 6 years of experience, poured 20.5 percent more into a short, wide glass than they did into a tall, thin glass according to a study from Brian Wansink from Cornell University in Ithaca, New York, USA.
Amount poured into short, wide glass vs tall, thin glass
Amount poured into short, wide glass vs tall, thin glass: 55 oz vs 46 oz
When asked to pour a “shot” of alcohol, which is 1.5 ounces or 44.3 milliliters, bartenders poured an average of 54.6 milliliters into a short, wide glass compared to 46.4 milliliters into a tall, thin glass, a difference of 20.5 percent.
Surprisingly, students were more accurate, but still poured slightly more into short, wide glasses than tall, thin glasses: 46.1 milliliters versus 44.7 milliliters.
Conclusion: To avoid overpouring, use tall, narrow glasses
“To avoid overpouring, use tall, narrow glasses,” Wansink and Van Ittersum concluded.\
Subjects: 198 college students and 86 bartenders
The study involved 198 college students and 86 bartenders.
Wansink B, Van Ittersum K. Shape of glass and amount of alcohol poured: Comparative study of effect of practice and concentration. BMJ. 2005 Dec 24, 331(7531):1512-14.
AUTHOR’S CONTACT INFORMATION
Brian Wansink, PhD
Cornell Food and Brand Lab
Ithaca, NY, 14853-7801
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