Red Eye Coffee and Nilgiri Tea are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Red Eye Coffee and Nilgiri Tea's differentiating factor?In following section we will take a close look at what is Red Eye Coffee and Nilgiri Tea color, serving style, types and much more. First thing to know is what are the different types of Red Eye Coffee and Nilgiri Tea. Well, Red Eye Coffee types include NA while types of Nilgiri Tea are Herbal.