Can stainless steel rust or spot?Updated 12 days ago

Yes; stainless steel is stain-resistant, not stain-proof.

Small surface spots can appear if the knife is left wet, placed in the dishwasher, soaked, exposed to salty or acidic foods for long periods, or stored before fully drying. These spots are usually easy to prevent and remove with proper care. - we recommend Bar Keeper's Friend for cleaning.