Hello,
I use a product called Cerama Bryte class-ceramic cooktop cleaner. It is very good. Use it with the small yellow Cerama Bryte pads.
Here is a link to their website:
http://www.ceramabryte.com/
You can buy it at Home Depot, Lowes, Best Buy, Ace Hardware, Bed Bath and Beyond, and some grocery stores.
Please let me know if you need further help.
Internet Researcher
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