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