Green Tea and Doppio are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Green Tea and Doppio's differentiating factor?In following section we will take a close look at what is Green Tea and Doppio color, serving style, types and much more. First thing to know is what are the different types of Green Tea and Doppio. Well, Green Tea types include Chinese Green Tea, Pan Fried Longjing, Bi Luo Chun, Jasmine Tea, Japanese green tea, Steamed Sencha, Gyokuro, Kabusecha while types of Doppio are Espresso.