What Coffee Drink Has The Most Caffeine. According to caffeine informer, the strongest (and most dangerous) coffee is devil mountain’s black label. Also, the amount of caffeine in both coffee or tea massively depends on the origin, variety and how the drink has been prepared, so there’s a lot of factors at play.
And a 12 oz mug of drip has around 120 milligrams. Arabica beans contain about half the caffeine of their robusto counterparts, according to an article published in the august 2016 issue of the journal.
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Arabica coffee contains about 1.2% of caffeine vs. Beyond traditional drip coffee nitro cold brew has the next most caffeine per serving.