Oxalic acid is the ideal product to remove rust from grill grates if you have that problem.
How to remove surface rust from stainless steel appliances.
If using baking soda and water use a cloth or soft bristle brush rub the baking soda in the direction of the grain.
It is this invisible layer which covers the entire surface of the stainless steel appliance which gives it its ability to resist rust and stains.
If the rust spots on your fridge are tiny and hardly noticeable as rust unless you squint at them you should be able to use baking soda and water.
You can get rid of rust spots with a stainless cleaner or stainless brightener such as bar keepers friend.
Wipe off the paste with a clean damp cloth or rinse the paste off with clean.
Or you can make a paste of baking soda and water and apply it with a soft cloth rubbing.
Removing rust spots from your stainless steel fridge there are two methods that work best for removing the rust spots.
Never use wire brushes or steel wool because these can leave behind minute particles of metal which can then rust.
Rinse the larger surface area be it the basin of your sink or a section of your stainless steel counters thoroughly to remove any debris and dampen the surface.
Rub the stainless steel surface in the direction of the grain until the rust lifts away.
Baking soda is a very fine abrasive that is unlikely to seriously scratch the stainless steel surface.
Rinse the surface with clean water and then dry the steel with a clean cloth.
Move the scouring pad in a straight line matching the direction of the grain.
Continue scrubbing until the rust stain is no longer visible.
How to remove stains with baking soda and dish soap baking soda mixed with liquid dish soap can make a good paste to gently rub out stains.
Baking soda and water or baking soda and lemon juice.
Removal of oxidized stains and even surface rust can be done by using a paste made from baking soda and water or a cleaner that contains oxalic acid such as bar keeper s friend soft cleanser.