for me it left no after taste or residue and it removed the metallic taste actually you can read all about it hereAlright i see. Won't the vinegar leave residues / smell behind?
And i guess alcohol would also remove metal taste wouldnt it? and sterilize it aswell.
http://www.e-cigarette-forum.com/forum/clearomizers/404251-provari-mini-kanger-protank-metallic-ey-taste.html