Hello and good morning,

Thank you for your inquiry. For any spotting or stains we recommend using a stainless steel cleaner. You can use that and scrub with a soft cloth. You can also use a product called Bar Keepers Friend for any other staining or spots. Rinsing and drying your sink every day will also help prevent any spots. Never keep steel wool pads, rubber mats or sponges laying in the sink as this will cause more discoloration. I hope this advice helps.
Have a great day!
-Sarah