(BBC) — The shape of your glass is probably the last thing on your mind when you are down the pub.
However, researchers at the University of Bristol believe the shape of beer glasses affects the speed people drink.
Their study, published in the journal PLoS ONE, suggests people drink more quickly out of curved glasses than straight ones.
They argue that the curvy glassware makes pacing yourself a much greater challenge.
A group of 159 men and women were filmed drinking either soft drinks or beer as part of the study. The glasses all contained around half a pint of liquid, but some of the glasses were straight while others were very curved.