Or they can turn into into supercapacitors - https://science.slashdot.org/story/20/08/12/188249/scientists-turn-normal-red-bricks-into-electricity-storing-supercapacitors

So how is this different than a steamer basket where the stalks also never touch the water.

So don’t remove patina from antiques like furniture and silver, but do remove patina from cars? I don’t get it.