Starbucks, has arguably become Americas go to morning beverage. Do you ever wonder how much caffeine is in your morning ritual? Well, I did. I always thought I was getting the most caffeine from a shot of espresso, I was wrong. A single shot of espresso only has 89mg versus 240mg for a tall regular drip. The grande has 320mg and the venti drip a whopping 480mg of caffeine. I know some people get their caffeine fix from coke, but compared to a cup of joe, it provides a paltry amount of caffeine, usually around 35mg from a 12 oz can. For those of you trying to avoid caffeine, you should know that Starbucks decaf contains caffeine as well, approximately 12mg in a tall, and up to 20mg in a venti decaf drip.