Barkeeper's Friend. It will clean anything and it's safe for stainless.I got a new 14” stainless skillet and used it for the first time to boil spaghetti noodles in tonight. Now it has about 10 spots that won’t go away! I used a green scrubby with dish soap first, then brought out my OxyClean and can’t get rid of them. In the sink they looked black but in this light they look light. How do I get rid of them? View attachment 585970