Ristretto and Kopi Luwak are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Ristretto and Kopi Luwak's differentiating factor?In following section we will take a close look at what is Ristretto and Kopi Luwak color, serving style, types and much more. First thing to know is what are the different types of Ristretto and Kopi Luwak. Well, Ristretto types include L'autentico, vanilla while types of Kopi Luwak are Not Available.