Tell me how to clean a burnt pot

pu1. I saw it on the blog and copied it. Add baking soda and vinegar, add water, and boil it. It's not working well, but I think it's working.

2017-11-20

OK

pu2. Baking soda is alkaline and vinegar is acidic, so if you mix it together, it's just salt and water

2017-11-20

OK

pu3. If you put a little water on the baking soda and wipe it gently, the things on it start to melt as it becomes soap... After that, you can remove stains made of metal soap by wiping them with vinegar. After that, if you wipe it off with kitchen detergent, you can wipe it clean
Do it in three stages

2017-11-20

OK