US Patent 9629493 Apparatus for cold brewing coffee

An apparatus for cold brewing coffee includes a filter insert, a filter frame receiving the filter insert therein and a barrel receiving the filter frame and the filter insert, wherein the filter insert has a stainless steel mesh cylindrical side wall and a stainless steel mesh flat bottom perpendicular to the side wall. The filter frame has a perforated cylindrical side wall and a perforated flat bottom, wherein the perforated cylindrical side wall is arranged coaxially with the stainless steel mesh cylindrical side wall of the filter insert.