The Blue Mark Pu'er tea Cake are commonly wrapped in handmade Yunnan cotton paper, inscribed with its categorical characters but its trademark ticket does not specify its production location. The raw materials used to produce the limited Blue Mark Pu’er tea Cake were harvested from the six great tea mountains in the Menghai County of Xishuangbanna. The surface of the tea cake is slightly curved, reminiscence of the shape of a bowl and exhibits the color of a dark luminosity.