||The Morning Buzz
Posted: 3/18/2010 4:32:25 AM
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Years ago the Wall Street Journal did a study of caffeine and major coffee brands. Fast Company did a similar study recently. Both uncovered the same results.
A can of Coke or Mountain Dew has about 50 milligrams of caffeine.
A 16 oz. cup of McDonald's or Dunkin' Donuts coffee has 140 miligrams of caffeine.
A 12 oz. cup of Caribou coffee has 180 milligrams.
And a "tall" Starbucks has a whopping 240 milligrams of caffeine, double what you get at McDonalds.
The only drink on the commercial market with more caffeine is Jolt.
By the way, caffeine intoxication -- the jitters -- starts to kick in at 300 milligrams -- right about what you get with a grande Starbucks.
That means you would have to buy almost two full cups of McDonald's coffee to get to the same caffeine bang for your buck as Starbucks.
Now, as I understand it, once you get used to elevated amounts of caffeine, you need to keep getting them. In other words, it is hard to go from Starbucks -- and 240 milligrams of caffeine -- to McDonald's -- and its relatively underwhelming amount of caffeine. This could, then, keep you coming back to Starbucks.
And caffeine counts are no accidents. In other words, the amount of caffeine has little to do with the beans and everything to do with the preparation -- the grind of the beans and the amount of water used.
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