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.
Something wrong with your cutter! They shouldn’t be sharp!
Possibly, though sliding your thumb over the edge pretty fast at an angle seems to end up causing the slice anyway. I regret not taking pictures during the healing process :(
using one as a scraper might serve to sharpen it actually, this cut could’ve been a veritable perfect storm