Herbal Tea and Earl Grey Tea are produced all around the globe. And they change according to region in where they are cultivated. So, the question arises what is Herbal Tea and Earl Grey Tea's differentiating factor?In following section we will take a close look at what is Herbal Tea and Earl Grey Tea color, serving style, types and much more. First thing to know is what are the different types of Herbal Tea and Earl Grey Tea. Well, Herbal Tea types include Black Tea, Chamomile Tea, Ginger Tea, Lavender Tea, Peppermint Tea, Rosemary Tea, Green Tea, Lemon Balm Tea while types of Earl Grey Tea are Herbal.