Honestly? Not that much, unless you’re a human canary in a coal mine. If you’re swapping from regular coffee to decaf because of anxiety, heart palpitations, or a caffeine intolerance, those 2 to 15 milligrams are almost certainly not going to ruin your day. You’re probably fine.
But if you’re a super-taster of caffeine? Then choose your decaf wisely. Look for Swiss Water Process or beans labeled “caffeine-free” (rare, but they exist). Or just accept that your evening brew comes with a tiny, almost mythical sidekick: a ghost of a buzz.
So, next time someone sniffs at your decaf, smile. You’re not drinking nothing—you’re drinking a 99.9% artistic compromise between flavor and sleep. And honestly, that’s pretty cool.