International Communicaffe Comes Up With 10 Most Caffeinated Coffees

Caffeine is one of coffee's most alluring traits, but which variety has the most? International Communicaffe just published a list of the top 10, feature no. 1 as Black Insomnia with 58.5 mg of caffeine per ounce. Others include Death Wish Coffee, Starbucks Espresso,  Peet’s Coffee Espresso, Nespresso Coffee Capsules and more.