Using warm water, rinse the coins to remove the tomato ketchup. Rub the coins as gently as possible to avoid damaging them. Scrub the copper coins with an old toothbrush with soft bristles. Like with the tomato ketchup, submerge the coin(s) in the hot sauce/brown colas You may also use brown colas or hot sauce to clean the coins. Then put the coins into the ketchup, making sure that both sides are evenly coated Then follow this guide to clean your old copper coin(s).Īdd some tomato ketchup or paste into a small container, enough to cover your copper coin(s). You’ll need tomato ketchup, a small container, a soft toothbrush, and a clean cloth to get started. The cleaning process is much like the pencil eraser method, only that we add tomato ketchup to help remove oxidation. The tomato paste or ketchup also has little acid, meaning it can work perfectly to clean copper coins. And although it might take several pennies to fill the steel nuts and bolts with copper, it’s worth it. The steel nuts and bolts will then attract the dissolved copper, forming a copper coating. As you clean more and more coins, the acid dissolves some of the copper on the coins. Tip: Put several new bolts and nuts in the bowl with your copper pennies. Then put it in the piggy bank or sell it to coin collectors if it’s valuable. Soak the copper coins in more vinegar solution if they still look dirty. Using a fiber cloth, dab the coin(s) and then let them air dry The acidic power of the solution may wear off the copper if not well rinsed. Rinse the coin(s) with warm water to remove the vinegar and salt. If you’re cleaning several coins, spread them out so that the solution reaches both sides of each coin.įor gradual treatment, dip an old toothbrush with soft bristles into the solution and use it to scrub the coin. Leave the coin soaked in the solution for about 5 minutes. The salt helps remove the black spots from the coins, but adding more salt can damage the coin. Pour one teaspoon of salt into the bowl with vinegar and stir until the salt dissolves into the vinegar. You can use a bigger bowl and more vinegar if you plan to clean several coins all at once. Here is a step-by-step guide to cleaning copper coins using:Īdd ¼ cup of white vinegar into a small bowl. Citrus juices are acidic and will remove the copper oxide on coins. This recipe leverages vinegar’s acidic power and salt to create chemical reactions with the pennies to remove copper oxide.Īnother great option to use in place of vinegar is lemon or orange juice. White vinegar added in water also works perfectly to clean the old copper coins. Method #2: Using vinegar (or orange/lemon juice) and salt Rinse the penny using warm water and dry it with a soft paper towel or cloth. Then flip the coin to clean the other side. Then use the pencil eraser to rub the dirt and brown crust off the penny in a circular motion. The technique involves no liquids that may spill and cause a mess.įirst, lay your dirty penny on a clean cloth or paper towel. This is perhaps the simplest method of cleaning pennies.
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