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