A:Answer I have had both, I have had porcelain grates on my previous Whirlpool and now have my wonderful new Samsung 5 burner grate that is cast iron. I would say I like them both equally, but the cast iron, seem a big sturdier.
I am a very clean cook, making sure my pots have lids, and are deep, so not to make a mess when I am frying, or do saut'e. If I see any spots at all, I clean them immediately, yes I do, and this is why I keep my appliances in tip top shape, and yes people comment on how even my previous Whirlpool with porcelain grates, look brand new.
I put my porcelain grates, in hot soapy water, would make sure they are dry, and used a porcelain cleaner, to make them shine, they always looked new.
Hope this helps.
