Oolong Tea (also known as Wu Long Tea) is from the Wuyi District of Jujian China - Also known for its famous Rock Tea. Oolong is semi-fermented, combining the qualities of black (richer taste) and green (antioxidants benefits) tea. Organic Oolong Tea has woody aromatic scents and full-bodied flavor. A typical cup of oolong tea s about 30-40mg of caffeine, and a cup of coffee ranges from 100-180mg.