Like green teas, white teas, and oolong teas, black teas are also made from the camellia sinensis leaves. After the leaves are harvested, they are allowed a longer period of oxidization than green or white teas, giving them a stronger, bolder and more astringent flavor. In English-speaking countries, they are called black teas for the color of the leaves; however, in China, they are known as red teas for their color, a rich carnelian red.
