Yellow Tea and Long Black are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Yellow Tea and Long Black's differentiating factor?In following section we will take a close look at what is Yellow Tea and Long Black color, serving style, types and much more. First thing to know is what are the different types of Yellow Tea and Long Black. Well, Yellow Tea types include Junshan Yinzhen, Huoshan Huangya, Meng Ding Huangya, Da Ye Qing, Huang Tang while types of Long Black are Espresso, Ristretto.