How Can I Quickly And Without Using Chemicals, Clean Very Badly Tarnished Copper?
To clean tarnished metals, you either have to scrub hard enough to scrape away the tarnish (which takes LOTS of time and elbow grease, and is not recommended), or else use some sort of chemical removal. The simplest chemical treatment (and least likely to damage surrounding material) is a mixture of salt and a weak acid (vinegar or lemon juice).
