There are many names for different teas, but there are really only three different kinds of tea. Black tea is fermented and roasted before it's packaged. Green tea, enjoyed by the Japanese, is steamed but not roasted, and is not fermented. A third kind of tea, oolong tea, is partially fermented, then roasted to give it a greenish-brown colour.
Terms such as orange pekoe and souchong don't refer to different kinds of tea, but to the size and appearance of the leaves that are used to make that tea.
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