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Subst Use Misuse. 2014 Feb;49(3):295-302. doi: 10.3109/10826084.2013.832327. Epub 2013 Sep 12.

Half full or empty: cues that lead wine drinkers to unintentionally overpour.

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1Iowa State University , Ames, Iowa , USA.


Wine drinkers often pour their own wine, but is the amount they pour influenced by the shape of the glass, the color of the wine, or how they pour? Building on research involving visual illusions and haptic cues, an exploratory field study shows that while wine drinkers typically poured 3.95 fl. oz. of wine into a standard baseline (10 fl. oz.) glass, they poured 11.9% more into a wider glass, 9.2% more when the wine was white (the low contrast with the glass makes it difficult to see), and 12.2% more when the wine glass was held in their hand rather than sitting on the table. Using narrower wine glasses and not pouring while holding one's glass may be steps toward modestly reducing the amount of wine a social drinker pours and drinks.

[Indexed for MEDLINE]

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