I have a problem. Let's say I buy a frying pan for about 130 EUR. But after 5 months of using it 3 times a week, it looks like the photo. What am I doing wrong please ? (I never scratch the pan. I always wait until it's cold before washing it, I protect the Teflon with shoam)
Edited: to react to your comments, my habits are: preheat the pan for about 6 minutes on the biggest flame without oil - to prepare it for a steak. But i use it like this for about 20% of time. Is preheating damaging the Teflon? If so.. what material should i use?