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Glass shape influences consumption rate for alcoholic beverages
Angela S Attwood1, Nicholas E Scott-Samuel, George Stothart
1School of Experimental Psychology, University of Bristol, Bristol, United Kingdom. angela.attwood@bristol.ac.uk
Plos One
|August 23, 2012
Summary
Glass shape significantly affects alcohol consumption rates. Alcoholic drinks were consumed 60% slower from straight glasses compared to curved ones, suggesting a potential public health intervention target.
Area of Science:
- Psychology
- Behavioral Science
- Public Health
Background:
- High alcohol consumption and binge drinking pose societal risks.
- Alcohol intake is influenced by factors like price and availability.
- The impact of glass shape on drinking speed is under-explored.
Purpose of the Study:
- To investigate how glass shape influences the consumption rate of alcoholic and non-alcoholic beverages.
- To determine if glass curvature affects drinking speed.
Main Methods:
- Experimental design with factors: beverage type (lager, soft drink), glass shape (straight, curved), and quantity (6 fl oz, 12 fl oz).
- 159 social drinkers (male and female) participated in two sessions.
- Participants consumed beverages from randomized glasses and completed a midpoint judgment task.
Main Results:
- Alcoholic beverages were consumed 60% slower from straight glasses versus curved glasses.
- This effect was significant only for full glasses, not half-full.
- Non-alcoholic beverage consumption rate was not affected by glass shape.
- Participants misjudged the midpoint of curved glasses more than straight ones.
Conclusions:
- Glass shape demonstrably influences the rate of alcoholic beverage consumption.
- This finding suggests glass design could be a modifiable factor for public health interventions aimed at reducing alcohol intake.
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