Ristretto and Green Eye 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 Green Eye's differentiating factor?In following section we will take a close look at what is Ristretto and Green Eye color, serving style, types and much more. First thing to know is what are the different types of Ristretto and Green Eye. Well, Ristretto types include L'autentico, vanilla while types of Green Eye are Espresso.