I did an experiment, trying to clean metal in a new way (for me). I burned some potatoes to the bottom of a pot and it needed to be cleaned. I made the mistake of not putting in enough water and the potatoes burned at the bottom. It was a mess and needed to be cleaned. I decided to try an experiment and brought the camcorder with me to share the results.
I wondered if hydrolysis would help clean this mess. A 12V solar panel supplied the power.
Hydrolysis then produced Hydrogen gas bubbles on the surface of the metal pot, helping to loosen the burned debris.
I find it interesting that one terminal gets oxidized and ruined at the expense of cleaning the other terminal.
Rust as Fertilizer
Rust is a form of Iron and is taken up by plants and nourishes them. Some people buy fertilizer with Iron in it. Plants gain a richer green color from Iron. One idea I have is to purposely oxidize scrap metal and pour the rust as a supplement into my garden beds or compost pile. It seems better than throwing the scrap metal into a landfill where it is wasted.
My observation is that about an hour of hydrolysis is sufficient to loosen the burned food so that the rest can be scrubbed off with ease.