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