Portion Distortion

If you take a look at the six different sized glasses we've placed on a table it may be hard to figure out which one holds the most alcohol.
You may think it's the one with the ice...or perhaps this shot glass since its filled to the rim.
The fact is, all of these glasses are holding the same amount. One-point-five ounces...or a shot.
But if you're playing amateur bartender this New Year's Eve, don't be deceived...The British Medical Journal reports people may unwittingly pour the equivalent of two and a half drinks into short wide-glasses as compared to tall skinny ones.
Ten year veteran bartender Chris Gravenstein at the Flowing Tide Pub says "amateur" was the first thing he thought of when we read the study. " Its important to have proper training to make sure guests and customers are getting the right amount of alcohol."
Gravenstein says professional bartenders don't go by the looks of a glass to pour a shot, instead they count to six.
" Bubble, 2,3,4,5,.6 and that should be an ounce and a half."
Chances are if you're in a bar or restaurant you won't be getting more than that one and a half ounces in your drink. And keep in mind a 12-ounce beer, has the same amount of alcohol as a shot of alcohol as a six ounce glass of wine.
Chris says ordering a drink in a taller glass won't get you more alcohol unless you ask for it...and then you'll be charged double. Still ordering the mixed drink in a taller glass may be the way to go for some. That's because you'll get more fluid in your system that's less alcohol concentrated. One obesity researcher says the study underscores the need for people not to underestimate their alcohol or even food intake for that matter. Baylor College of Medicine obesity researcher John Foreyt says portion distortion may mean studies on alcohol consumption could be underrepresented by a quarter.
Restaurant and bar owners might want to think about the financial implications of the study, especially if they want to make a profit off alcohol sales.