An apparatus may include a cylindrical member including a primary proximal end and a primary distal end. The apparatus may include a filter comprising a secondary proximal end and a secondary distal end, a filter cavity in fluid communication with the interior cavity of the cylindrical member, and a plurality of filter passages disposed upon a surface of the filter. The apparatus may include a pressure member radially extending from, and disposed about, at least a portion of the cylindrical member. The apparatus may include the pressure member comprising a disposable material disposed across a horizontal plane of the drinking vessel, an outer downward-facing lip, and an inner downward-facing lip, configured to allow for downward pressure.