Rust is a problem for many appliances. Clothes dryers have a tub with a protective coating that prevents rusting. But over time, this coating wears away because of damage from items such as sneakers or other hard objects. Rust stains form when the moist air from the dryer combines with the exposed metal. Remove the rust before it can spread.
Take a scrubbing pad or steel wool pad and scrub the rust stains on the dryer. Use pressure to get rid of stubborn stains. Wipe clean.
Put a little mineral oil on a scrubbing pad and then apply to the rust stains. Allow the rust to absorb the oil for several minutes. Then scrub at the rust stains again with the scrubbing pad or steel wool. Wipe the area with a damp cloth to remove the oil. Repeat if necessary.
Apply white vinegar to the rust stains with a paper towel. Allow the vinegar to soak in for 15 to 30 minutes, then scrub away the rust. Wipe clean with a damp cloth or sponge. Dry the area. Most rust removers are made of an acid. The acetic acid in vinegar helps to get rid of rust stains.