To clean stainless steel, use a mild detergent and warm water. Avoid using abrasive materials or harsh chemicals, as these can damage the surface of the stainless steel and reduce its corrosion resistance. For more thorough cleaning, a mixture of baking soda and water can be used to create a paste that can be applied to the stainless steel surface. This paste can help to remove stubborn contaminants and restore the chromium oxide layer.