The best way to clean the black coating is with a soft kitchen towel dipped in detergent and warm water. Then wipe it clean with a dry towel. Remember to unplug the gadgets before cleaning.

Most of these gadgets come with the user manuals with specific instructions about how to clean. That is the best way to do it.

Wipe it off with a clean wet towel immediately after every use. This will keep them clean and sparkling.

Never ever immerse the equipment in water. Clean the inner and outer surface with a wet cloth.