Short answers, yes—there’s still caffeine traces in your decaffeinated coffee. There’s no such thing as 100% decaf, and there most likely never will be. Caffeine grows with coffee beans; it’s part of its nature. However, decaf coffee has such a miniscule caffeine percentage, that a cup of coffee (or 3-4 throughout the day, if that’s how you roll), isn’t going to make your heart jump out of your chest.\r