Doppio and Carajillo 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 Carajillo's differentiating factor?In following section we will take a close look at what is Doppio and Carajillo color, serving style, types and much more. First thing to know is what are the different types of Doppio and Carajillo. Well, Doppio types include Espresso while types of Carajillo are Espresso.