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