If there's one word that's synonymous with Starbucks, it's caffeine. The international coffee powerhouse has been powering people across the country and around the world for more than 50 years. But ...

Starbucks’ Cold Brew, Iced Brown Sugar Shaken Espresso, and Pike Place Roast are among the most caffeinated drinks on the menu. Caffeine varies with customizations like extra espresso shots and size.