The answer to 'how to clean sink' is to regularly clean and maintain your sink to keep it looking its best. This involves a few simple steps that can be done using common household cleaning supplies.
First, start by removing any visible debris or buildup in the sink using a soft-bristled brush or sponge. You can then use a mild detergent or baking soda and water solution to scrub the sink, paying extra attention to any stains or tough spots. Rinse the sink thoroughly with clean water to remove all traces of the cleaning solution. For a finishing touch, you can polish the sink with a stainless steel cleaner or a microfiber cloth to restore its shine.