How Much Caffeine Is Really in Your Coffee?

We tested the levels of caffeine and contaminants in brews from Dunkin', Folgers, Starbucks, and more. Some will wake you ...
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The 19 Drinks At Starbucks With The Most Caffeine

Curiously, Starbucks does not offer a defined caffeine count for each roast. Instead, on the menu, you'll find a range of 315 to 390 milligrams for each, making simple brewed coffee among the ...