Tea Grades Orange Pekoe (OP) Broken Orange Pekoe (BOP) is the next grade below Orange Pekoe which designates a broken leaf. Fanning (F) is smaller than BOP. Dust (D) is the lowest grade of tea available if produced by CTC method of manufacturing and Dust if produced by the Orthodox Method. Black Tea. Green Tea. Click to see full answer. Subsequently, one may also ask, which grade of tea is of the finest quality?In the tea industry, tea leaf grading is the process of evaluating products based on the quality and condition of the tea leaves themselves. The highest grades for Western and South Asian teas are referred to as “orange pekoe”, and the lowest as “fannings” or “dust”.Also, how can you tell the quality of tea? Touch: In general, high-quality dried tea leaves should feel how they look: smooth, whole and sturdy. It should also have a slight heft in your hands; if your tea feels feather-light, it may be an indication that it was over-dried or is getting old. Also know, what grade of tea is used in tea bags? Fannings are finely-broken pieces of tea leaf that still have a coarse texture. This type of tea grade is used in tea bags. They are smallest pieces of tea that are left over as the higher grades of teas are gathered to be sold.Why is it called orange pekoe tea?Orange Pekoe is a classification of black tea based upon the origin of the leaf. Well, pekoe is actually pronounced ‘pek-ho’ and is derived from a word for a special kind of Chinese tea, meaning white downy hair referring to the down-like hairs on the tea leaves that are the youngest and smallest on the plant.