Can I scrub it with a steel wool scrubber when batter sticks to the cooking ring?

Fluororesin coating is a film processing that helps food release smoothly without tangling and sticking to the surface, just like the bottom of a frying pan. Kajidonya's cooking ring has a fluororesin coating finish added to prevent ingredients such as batter or eggs from sticking to the mold^[1].

While this coating film has the advantage of a smooth surface, it is easily scratched by rough friction. If you scrub it with a metal material like a steel wool scrubber, the surface will be damaged and its original non-stick function will deteriorate; therefore, when washing, you should avoid metal scrubbers and use a soft sponge^[2]. If batter residue has dried and stuck, rather than scraping it off excessively, soaking it briefly in lukewarm water and wiping it with a sponge is the appropriate method.