u/Comfortable-Fail-231

Okay so this was an old one I had that had some food caked on. It’s a small mini one so I guess I forgot about it for a long time. I salt scrubbed, baking soda scrubbed. Then overnight soaked in vinegar. I scrubbed again, lightly oiled, and put in the oven for an hour. Still looks like this. Is it done?? Sos