It's been more than a month. I have tried baking powder+ water, boiling water, boiling vinegar, making wine in it, making vinegar in it, brute-forcing my way for 30 minutes... nothing works. Boiling vinegar in the pot did help a bit, but I'd need to boil it for maybe hours, and I don't trust my ventilation that much.
There is also a baking tray in a similar condition, but I don't even want to start worrying about that one.
u/Electrical-Gene-3800 — 19 days ago