In article 0,
mike ring writes:
"Ed" wrote in :

I've only had the new Franke sink a few months and now it's starting
to get a light tan hue from tea stains.

I've got a compe white sort of sink, and the instructions say it's not the
sink that stains, but limescale from water stains, and to use descaler.

Descalers can mark stainless(sic) steel, something which I know
first hand...

--
Andrew Gabriel