I couldn't find a wire brush when I bought my grill but was surprised to discover that the actual grill plates were "Porcelain-enameled cast-iron". I just dump

I couldn't find a wire brush when I bought my grill but was surprised to discover that the actual grill plates were "Porcelain-enameled cast-iron". I just dump them into the sink and let them soak every couple of weeks and they basically come out nearly spotless. However, I don't normally clean them except for using a plastic brush when they are cold—mostly to get rid of the big pieces. I rather like the "seasoning" :)