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