Removing rust spots from your stainless steel fridge there are two methods that work best for removing the rust spots.
How to remove surface rust from stainless steel appliances.
Rub the scouring pad across the rust stained surface of the stainless steel appliance.
Rub the stainless steel surface in the direction of the grain until the rust lifts away.
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.
Oxalic acid is the ideal product to remove rust from grill grates if you have that problem.
Move the scouring pad in a straight line matching the direction of the grain.
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.
Never use wire brushes or steel wool because these can leave behind minute particles of metal which can then rust.
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 using baking soda and water use a cloth or soft bristle brush rub the baking soda in the direction of the grain.
Rinse the surface with clean water and then dry the steel with a clean cloth.
Continue scrubbing until the rust stain is no longer visible.
Or you can make a paste of baking soda and water and apply it with a soft cloth rubbing.
The simple explanation is that when the chromium in stainless steel is exposed to oxygen found in the atmosphere it forms a very thin layer of chromium oxide.
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.
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.