1.. Remove food, dishes and wet sponges or cloths from the sink promptly. Any of these items can contain chemicals that damage stainless steel, such as acids, salts or household cleaning agents.
2.. Rinse the sink with clear water and towel it dry after using it. This cleanses corrosive chemicals off the steel and prevents mineral deposits from building up.
3.. Use a soft scrub-pad, not steel wool or harsh scrub pads which can damage sink surface.