How do you clean a black enamal paint stained kitchen sink?

To clean a black enamel paint-stained kitchen sink, start by mixing warm water with a few drops of dish soap. Use a soft sponge or cloth to gently scrub the stained area, being careful not to scratch the enamel. For stubborn stains, you can apply a paste of baking soda and water, letting it sit for a few minutes before scrubbing. Rinse thoroughly with warm water and dry with a soft cloth to restore shine.