Does anyone know how to clean these ugly brown stains off

Natural options can also be effective for lighter stains. Lemon juice paired with a small amount of salt creates a gentle, acidic scrub that can brighten dull spots. Apply it sparingly, let it rest for a short time, then rinse thoroughly. These methods are safe when used occasionally and help maintain the sink’s original appearance without scratching or dulling the surface.

Prevention is just as important as cleaning. Rinse away food residue promptly, wash the sink regularly with mild dish soap, and dry it after use to reduce water spots. Avoid steel wool, rough scrubbers, or strong chemicals that can wear down the finish over time. With consistent, light care, your stainless steel sink can stay clean, polished, and free of buildup — often with just a few minutes of attention each week.