It took English scientists to determine how beer glass shapes determine drinking speeds.
Beer glass shape does indeed determine drinking speed they found, with curved glasses encouraging more drinking than straight pint glasses.
Researchers at the University of Bristol looked at 159 volunteers - who wouldn't volunteer for a study like that? - drinking either soft drinks or beer.
People drank the same amount in either straight or curved glasses.
The researchers found that with soft drinks, drinking speeds were about the same for both glasses, said Medical Daily.
Yet, with beer, there was a huge difference.
Those drinking from straight glasses took on average 11 minutes to drink a beer, while those drinking from curved glasses took about seven minutes.
"Drinking time is slowed by almost 60% when an alcoholic beverage is presented in a straight glass compared with a curved glass," read the report, according to BBC.
Researchers said that not only do we now have to pay attention how we pace ourselves but also how our glass is shaped while drinking beer.
"People often talk of 'pacing themselves' when drinking alcohol as a means of controlling levels of drunkenness, and I think the important point to take from our research is that the ability to pace effectively may be compromised when drinking from certain types of glasses," said study author Angela Attwood, reported Today.
BBC reported that previous studies also showed that pours increase in short fat glasses than long, tall ones.
The study was published in the journal PLoS ONE.