These two ingredients are enough to make your stainless steel sink shine: flour or baking soda.
They can both clean your sink of stains and grooves.
All you have to do is clean the sink with soapy water before completely drying the steel basin with a clean, dry towel.
Then, sprinkle the sink with flour or baking soda and rub it with a dry microfiber towel in circular motions.
If you use flour, do not forget to remove the excess flour so it does not block the pipes.
Here is a simple tip if your pipes are blocked: pour very hot water in the sink, it works like magic!
If you use baking soda, it will dissolve when your pour water on it.