Somebody probably needs to give Boulder scientist Chris Holloway an award or something for inventing a method of tracking short pours from your bartender.
D: Did any particular incident trigger your invention?
CH: About a year and a half ago I was at one of my favorite pubs in Boulder getting one of my favorite beers. They were out on tap, but the bartender said they did have 22-ounce bombers in the bottle. We talked about the price, and he said, “Well, a bomber is basically two pints.” And I said, “How do you figure that?” He took the bomber and poured it into two pint glasses. They were both almost full. Twenty-two ounces isn’t even a pint and a half! So I went home and did the math. I was surprised. It doesn’t take much to get short-poured. Because of the way the glass is tapered, a half-inch from the top means you’re missing 13 percent of a pint; an inch from the top, you’re missing 25 percent. After four beers, you’ve sort of missed one.
You can purchase the Beer Gauge for the low price of $2 (.50 cents for shipping) and save yourself some beer drinking money in the long run.