Vinegar is good to clean your stainless steel appliances, spray it and rub it with very soft sheet or cloth.
3) Finishing touch by baby oil
It will make them look shine and just like the first time you bought them.
4) Mild detergent and warm water
They are needed to use for cleaning which needs more power without being afraid to harm your stainless steel.
That is some tips on how to clean stainless steel appliances. Find some references from your friends or family to get their advices before buying it. Here you can learn more How to Clean Stainless Steel Appliances