/ck/ - Food & Cooking

>>7454888
>>7454700
>>7454954
I've got stainless but the first thing I fried with it left a really difficult to scrub off carbon(?) stain
It's like the black residue, but most of it's scrubbed off, just now it has a sort of brown and impossible to remove black splotches on it.
Is this normal ? Looks like pic related inside and out. It's clean but still dirty looking