Remove holograms in the glass ceramic field

Maybe you know that too. Although my glass ceramic field is intensively cleaned after each cooking process, now and then traces of cooking remain. These patches look like they are trapped between the surface of the ceramic field and deeper layers of the field.

I had tried it with car polish, oven spray and glass ceramic field cleaner. Nothing helped. My wife said I should try it with simple toothpaste. I was skeptical because I was afraid that the surface would go blind. The spots annoyed me so much that I tried it out. Lo and behold, the spots were all completely gone. Simply ingenious and simple.

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