This kind has a long history, rooted in China. It is most often used in the ceremony of "Gong Fu." There are two kinds; light and dark oolong. Their main difference is the level of oxidation of the tea leaves. Oxidation level is wagging the taste and color of the drink. High oxidation gives you the darker liquid, and therefore, the taste is closer to black tea, and vice versa. In our collection, there are both light and dark oolong from Thailand, China, and Taiwan.