I had lost hope with my electric cooking plates. The white circles where completely hidden under a layer of diamond-grade burn residue that no amount of scrubbing with chemicals could even begin to remove. I found this 3€ scrapping tool and it’s amazing !!! Sorry, but I don’t have the before picture, believe me after 6 years of usage, it was bad.
My grandfather has something similar but it’s brass (or maybe copper) on the the end. Swears by it for all kinds of things
Isn’t copper cookware toxic if ot starts leeching copper into food for those with wilsons disease