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