Vienna Coffee and Fermented Tea are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Vienna Coffee and Fermented Tea's differentiating factor?In following section we will take a close look at what is Vienna Coffee and Fermented Tea color, serving style, types and much more. First thing to know is what are the different types of Vienna Coffee and Fermented Tea. Well, Vienna Coffee types include Kleiner Brauner, Kleiner Schwarzer, Großer Schwarzer, Kapuziner while types of Fermented Tea are Oolong, Black, Pu-erh.