You need these.
A pack of 100 bleached white paper filters, for your Hario V60 02 dripper. (Sometimes the white units are unavailable to us but we always have the unbleached brown ones just in case.)
Our crack investigative crew of Coffee Laboratorialists have concluded that the Hario white filters just taste better than the brown units. They probably meant the coffee tastes better, not the filters but they’re Scientists, not English Lit Majors. 😬