Here are the top 15 beverages with the most caffeine compared to coffee: Devil Mountain Black Black Coffee (928 mg caffeine per 16 oz) Black Label (904 mg caffeine per 19.4 oz can) Redline Xtreme (316 mg caffeine per 8 oz) Spike Shooter (300 mg caffeine per 8.4 oz) Wired X505 (505 mg caffeine per 24 oz can) Ammo (280…
