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