Stainless steel is easy to clean. Its smooth, pore-free surface makes it difficult for bacteria and other microorganisms to adhere and survive. But stainless steel, like all materials, requires some care, especially to remove fingerprints from surfaces. In most cases, a soft cloth, a microfiber cloth or a sponge soaked in soapy water will yield excellent results. For more resistant dirt, such as grease, simply use sprays and pastes specially developed for stainless steel. To prevent new stains there are polishing pastes that leave a layer of microscopic but resistant wax that makes it particularly easy to clean metal surfaces; an excellent product is Kymax Kronnix 27, marketed by ZEP Italy.
Do not use abrasives that leave scratches, such as steel wool pads. Disinfectants based on bleach, salt or other chloride-containing detergents can also damage stainless steel.