What national chain’s coffee has the MOST caffeine?
Buzzfeed bought 24 cups of coffee from four different major national chains: Starbucks, 7-Eleven, McDonald’s, and Dunkin’ Donuts. Then they had a lab analyze the cups to figure out every chain’s average caffeine.
And the most caffeinated coffee is from 7-Eleven. Their cups had an average of 280 milligrams of coffee.
Starbucks was second at 267 milligrams . . . McDonald’s has 227 milligrams . . . and Dunkin’ Donuts has 220 milligrams.
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