Double-layer microporous mesh-made of double-layer microporous mesh, to you get the coffee flavor and strength you like Compared with ordinary paper coffee, there is no clogging and less deposits handle-heat-resistant design, easy to handle, to scalding or heat when the handle when pouring water or not in use The inner layer of the filter paper is woven from high-density ultra-fine metal wire, which is isolated from the coffee powder The outer layer of the thickened stainless steel plate is perforated to provide an additional protective layer The steel mesh part of the cup is: the coffee grounds are not easy to adhere, and both sides are rinsed clean Folding design: can be carried with you The internal surface with coffee is ABS, which has good self-cleaning performance