Green Tea and Decaf Coffee 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 Decaf Coffee's differentiating factor?In following section we will take a close look at what is Green Tea and Decaf Coffee color, serving style, types and much more. First thing to know is what are the different types of Green Tea and Decaf Coffee. 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 Decaf Coffee are All types of coffee.