I have a piece of Marquis by Waterford AluminumIt was damaged in a fireHow and what do I use to clean it?
The process was carried out by water extraction, 1% chitosan flocculation, actived char decolorization, NKA9 resin adsorption, 50% ethanol desorption and methanol re-crystallizationThe extracting ratio of chlorogenic acid was 68% with purity of 97%An optimum and improved technology for the extraction and purification of chlorogenic acid in Eucommia ulmoides OlivLeaves was investigatedIt is helpful to industrial production of chlorogenic acid.
If it's black, then you can try an acid to remove the oxidation (like vinegar or an aluminum cleaner.) If it's turned weird colors, like iridescent swirls or white spots or something, you might be stuck with the weirdnessSpots are usually pitting and they don't really go away after they happenGood luck (and I wouldn't try the aluminum foil and pan method, by the wayThat's for tarnished silver.)