[jyl]

I once wondered about the safety of polishing compounds and cleaning compounds, used on cookware. I and a friend looked up MSDS for various products. Twinkle, Bar Keep Friend, Wenol, etc. My conclusion was they seemed generally bad to eat in meaningful quantities or to put in your eyes, but didn't seem dangerous enough that I was going to worry about the micrograms that might be left in the pores of the steel after buffing and washing. You have to decide how cautious you want to be. My logic is: everything has a dose-response, if the dose is extremely minuscule, I am not super worried about the response.