I moved into this house a couple of months ago and bought some high quality stainless steel utensils with me from my house. I am noticing some black spots that don't go away with scratching or washing or baking soda. All my stainless steel kitchen utensils have this and some plastic containers have black dust which could be wiped with a dry paper towel.
My mum has been using the same set of utensils for years and has never observed anything like this. The only difference is that I wash my utensils with warm to hot water(and fairy dish soap).These spots also seem to increase in number(not in thickness) day by day. Have any of you heard or seen anything like this in stainless steel utensils ? What could this possibly be?
(There is a lining of black mold in the sealant lining the wall near the sink and also some in the shower which was scraped away when I moved in)