We have a flat glass hob. For five years I have used washing up liquid with Brillo pads or steel wool to clean it. With enough scrubbing, the rings always reappear. I can't tell that the rings have faded or that the surface is scratched.
But now I learn that I should never have used Brillo/steel wool. I should have used an expensive proprietary cleaning product and posh razor scraper thingie.
I don't think I'm going to change my habits now. But what damage do you think I've done? Also, I am being nagged to get specialist cleaner/scraper for the glass hob on the cooker at the Guides hut (I am on the maintenance committee). I am trying to decide if this is possibly truly necessary.
Thanks for replies. I guess I'm most interested in whether at the Guide hut we NEED to make an effort to always use the HobBrite stuff, or wouldn't materials at hand )washing up liquid and a soft cloth with the occasional Brillo paid be okay).