I have been searching on pots and pans, how can I find out if it's really stainless steel, someone told me if a magnet sticks to it it's real stainless steel is this true?
Some types of stainless are magnetic and some are not. being magnetic isn't a reliable way to tell the difference. In fact, only the cheapest pots would be made out of grades of stainless that are magnetic. Stainless pots/pans are generally made of non-magnetic types, but then again, aluminum isn't magnetic either. Aluminum and stainless are superficially very similar.
if a magnet sticks to it that means it's a cheaper metal coated with stainless steel. if it's an appliance you're buying, look on the reciept. real stainless steel will actually say it. the coated stuff will just say stainless leaving out the steel.
Magnets stick to some stainless but not all of it, so a magnet is not a reliable indicator.