Frozen Coffee Drink and Bulletproof Coffee are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Frozen Coffee Drink and Bulletproof Coffee's differentiating factor?In following section we will take a close look at what is Frozen Coffee Drink and Bulletproof Coffee color, serving style, types and much more. First thing to know is what are the different types of Frozen Coffee Drink and Bulletproof Coffee. Well, Frozen Coffee Drink types include Iced while types of Bulletproof Coffee are Espresso.