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