Make that white, green, greenish -- and black of tea. Here's a little background about tea, in case you were wondering: All true tea -- as opposed to "herbal tea," which isn't tea -- derives from a single plant, called camellia sinensis, a relative of the camellia flower. This one single plant splinters into countless varieties. Okay, that's it for biology. So how do you classify tea? At its most basic, it's about oxidation. Think, for example, of a nice, shiny apple. Take a healthy bite out of said nice, shiny apple, place it on the kitchen counter -- and watch. The bitten part will start to turn rust-colored, start to oxidize, right? Same idea with tea. "Color," or classification, is determined by the degree of oxidation.
With white tea, the leaves are picked and laid out to dry before they start to oxidize. Green tea starts wilting and oxidizing -- but the process is nipped early by heating the leaves. (In China that means cooking the leaves in a dry wok, while in Japan the leaves are steamed) Black tea is fully oxidized -- like the bite mark on the apple turning totally brown. Darjeeling is a black tea. So what about greenish tea? That's another name for oolong, which can range anywhere from almost green to almost black.
But, of course, it's not nearly so simple. Besides oxidation, add to the tea calculus the different leaves picked (from downy buds for white tea to two leaves and a bud for Darjeeling), different geography (from the "cliff teas" in China's Wuyi mountains to Assam teas on the plains of India), different plant varietals, different processes, different roasting, different people making it -- and on an on -- and you begin to glimpse a world as complex, rich and varied as that of wine.