To clean copper pots and pans with a salt-based scrub, mix several tablespoons of salt with some white vinegar or lemon juice. The mixture should form a paste. Coat the piece of cookware with a thick layer of paste, let it sit for 15 seconds, and scrub the piece with a sponge. Another method is to dip half of a lemon in salt and rub it on the copper.Continue Reading
To clean copper pots and pans using a flour-based scrub, pour 1 cup of white vinegar into a bowl, add 1 tablespoon of salt, and stir the mixture until the salt dissolves. Add a little bit of flour at a time to the mixture until it forms a sauce-like paste. Coat the copper item with the paste, rub it using a sponge or your fingers, and let the item sit for 15 to 60 minutes. Wash the paste off with warm water, rubbing the item while rinsing it. Polish the item by rubbing it with a soft cloth.
To clean very dirty copper cookware using sulfamic acid, obtain sulfamic acid, and mix it with the amount of water indicated by the manufacturer in a heavy-duty plastic container. Place the copper item into the mixture, and leave it there until the liquid stops bubbling. Place the copper item into a 1 to 2 percent soda ash solution for several seconds. Allow the item to air dry. Only use this method if the copper item doesn't contain any other metal.Learn more about Cleaning