Here are some things to avoid in order to maintain a stainless steel sink:

Avoid using a dish mat in the sink: Debris gets trapped beneath the mat, making the sink harder to keep clean. Instead, use a stainless steel sink grid.

Avoid leaving metal utensils, pots, pans, or other items in the sink for prolonged periods: This can lead to scratches and stains.

Avoid using steel wool or a scouring pad on stainless steel: These can scratch the sink.

Avoid using acidic or harsh chemicals or cleaners that contain chlorine bleach: They can damage the stainless-steel finish.

Avoid leaving water spots: Wipe the sink completely dry after every single use to keep water from drying and leaving spots.

Avoid leaving food sitting in the sink: Wash dishes immediately or move them to the dishwasher rather than leaving them to soak.

Remember, regular care and maintenance can keep your stainless steel sink looking shiny and new.