Just like your homework assignments were graded in school, so too are the tea leaves that have to go through the manufacturing process. Instead of being given a passing or failing grade rather, what is being talked about here is the classification of tea-based on certain physical properties. For example, while BOP, BOFP and PEKOE may look like utter gibberish to us laymen, what they are telling tea experts, is this: the leaves under the first classification are to be well made, neat and of medium size in the absence of excessive fibre, stalk and fine particles; the second classification denotes leaves that while neat and clean, are somewhat smaller than their BOP counterparts; and finally, the latter refers to leaves that are curly or partially curly and which stem from a crop reared at any elevation. Phew! This tea grading is hard stuff! Did you ever think this much work went into your steaming cuppa? Perhaps the next time you sit down to tea you will feel a newfound sense of appreciation for the beverage.