Removing Green Tarnish From Untreated Copper
- 1). Soak the copper in white vinegar. White vinegar is a mild acid that will eat away the alkaline tarnish. White vinegar is also a disinfectant.
- 2). Sprinkle salt over the wet copper. The salt will adhere to the copper and it act as a mild scouring powder to help work away the tarnish.
- 3). Scrub the salt into the tarnished areas on the copper with a cloth or an old toothbrush. Work until the tarnish is gone and the copper is clean.
- 4). Rinse the copper and dry it with a clean cloth.
- 5). Apply a dime-sized amount of ketchup to a clean cloth.
- 6). Rub the ketchup into the copper to polish it.
- 7). Buff the ketchup off with another clean cloth. Buff until the copper is bright and polished completely.
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