On Wed, 19 Oct 2005 11:25:21 +0100, Andy Dingley
wrote:

[SS]

If it's filthy, then Barkeeper's Friend will shift it. It's based on
oxalic acid and a good hardware shop, kitchen shop or even supermarket
will have it.

Oxalic acid only really applies to rust stains as it tends to take out the
hydrated oxides of iron. The surface of SS is actually chromium oxide in
some sort of weird matrix which keeps the oxygen away from the ferrous
component. If you manage to set up an electrochemical cell, SS will
corrode surprisingly badly. BTDTGTTS

John Schmitt

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