On Tue, 14 Aug 2018 12:44:29 -0700 (PDT), Thomas
wrote:

I just used Barkeepers Friend on a friend's suggestion on my 50 yr old porcelean double sink. Scratched and dulled the **** out of the white and the stainless drainers.
I normally use OxyClean. I get rust from knifes and such sitting for a few hours. The Oxy fixes it. BF will be used in the basement wash sinks instead of tossing it out.

You use that on brushed stainless, not polished SS or much of anything
else.