The wine glass effect

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SummaryIf you go to a fancy restaurant and order wine, or arrive for a sit-down dinner at a similar venue

If you go to a fancy restaurant and order wine, or arrive for a sit-down dinner at a similar venue, chances are the wine glasses placed before you will be ones with a wide circumference. That, it can now be revealed, is so that you drink more wine. In fact, those who come home after an evening out feeling that they have had too much wine can now blame it on the glass! This comes on the heels of a new study, which strongly suggests that the size and shape of your wine glass determine how much you end up drinking. Moreover, you also tend to drink more wine if you are holding the wine glass when the wine is being poured. The study, conducted by Doug Walker, Laura Smarandescu and Brian Wansink, strongly suggests that there is a connection between the wine glass and our drinking habits.

Earlier research had looked at how the size of plates we eat on determines how much we eat. Larger plates can make a serving of food appear smaller and smaller plates can lead us to misjudge the same quantity of food as being significantly larger. This suggested that not only could large dinnerware cause us to eat more, but it can trick us into believing we have eaten less.

The wine glass study, however, is far more conclusive and interesting. The researchers had recruited 73 volunteers who normally drank at least one glass of wine every week. They were asked to pour themselves a normal serving of wine. What the research clearly showed was that the volunteers unintentionally poured larger servings when their glasses were wider, when they held them in their hands while pouring, and also when the glassware matched the wine. “If you want to pour and drink less wine, stick to the narrow wine glasses, and only pour if your glass is on the table or counter, not in your hand. In either case, you’ll pour about 9-12% less,” Wansink said.

The researchers used three different types of wine glasses to test the effect of size and shape: large, wide or standard. When glasses were wider, participants poured 11.9% more wine than the standard glass. In another experiment, the volunteers poured 12.2% more wine when they were holding their glasses while the wine was being poured, compared to pouring it into a glass placed on a table. Finally, to

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