Drinking Air When you got to a coffee shop, or your espresso machine at home and get yourself a nice frothed coffee, what is it that your really enjoying? As you sip on your latte or mocha and inject the caffeine into your blood stream. When you get the hit of sweetness on your tongue and feel the warmth of the milk stream down your throat and into your belly. It might be easy to miss the magic that brings it all together. The thing for which it would all fall apart if missing. Air.