Oolong teas are all the teas that fall between the fully oxidized black teas and the unoxidized greens. This category also includes some of the most complex and widely sought after teas in the world. Typically produced in China and Taiwan, oxidation can vary from 5 to 85% and specific varieties or cultivars of tea are used to produce an extraordinary array of varieties and flavors. Oolong teas can be buttery, fruity, floral, smokie and so on, depending on the varietal used, the growing conditions, the processing, the area the tea was grown and the skill of the producer. They are valued not only for their taste but also for their health benefits. Oolongs are believed to be especially good for diet, cholesterol control and skin issues, in addition to the health benefits common to all teas.