Be careful using nail polish remover or ANY acetone based product! One they are HIGHLY flammable, two, you need good ventilation when you use it. I recommend the magic eraser first, failing that, Easy Off non-aerosol oven cleaner. Or Goo Gone. I've had good results with any of these, and a Scotch-brite no-scratch scrubby. Then use some Mother's Chrome polish to finish....good as new.

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Tweek