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∙ 12y agoits is good for cleaning with
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vinegar
lemon juice
Grape juice contains a weak acid called citric acid, which can help break down the tarnish on the surface of the penny. This acid dissolves the copper oxide layer, revealing the shiny copper underneath. Other acids in grape juice, like tartaric acid, may also contribute to the cleaning process.
What is. Background research
There are many items that clean pennies, but when coming to juices that clean pennies, Lemon and Vinegar can be a good choice. Though they aren't cleaning agents the way soaps and detergents are, they can be excellent at cleaning pennies. When you mix them with little salt, they start turning into a gentle acid mixture ideal for taking out stain on pennies. Just place the mixture on a disposable container and soak and wash the pennies in it.
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something
NO, cleaning them will probably reduce their value
they are from copper and copper is from the world
Chemistry