I have a mixed bunch of SS that I picked up one at a time to replace all the TFal I had been using for years. Most of the stainless that I have had directions on cleaning and the best advice on that was to only use Dobie scrubbies on them, not ever steel wool or even "greenies". The only powder they recommended was Bar Keeper's Friend. I only have to use that when I cook beans and it leaves a bluish discoloration. I gave all the wonderful old cast iron pans to my son as it got to where I couldn't pick them up anymore, specially the 14" fry pan. I miss them though.