How can I keep a black kitchen sink free of soap scum?

Tlc will help for sure

Cerama Bryte is a great product. You also use it to clean pots, kettles, etc. of stubborn stains, as well as porcelain sinks, tubs, etc. Be sure to rinse well.

When you are done cleaning it with whatever you choose to use, wipe it with a disinfecting wipe. Cleans and shines.

Thanks for the tip!

Lila, soap scum is easily removed with vinegar. It also disinfects and deodorizes (when the vinegar smell is gone). I love cleaning with vinegar. It is also great for mineral deposits

I clean houses and we use a mixture of vinegar, Dawn and water. In a spray bottle put approx 1 inch of dawn...2\3 vinegar and 1\3 water. Works great! If that doesn't work use Heavy Duty Dawn...you get this at Lowe's! Be careful...dont let it soak cause it can cause discoloration! But works awesome!!!