Things You'll Need
Instructions
Fill a small bowl or petri dish with enough water to submerge all of the dirty pennies.
Add ½ tbsp. of salt to the bowl. Use your finger to stir and mix the ingredients.
Place the pennies in the solution. The two ingredients interact with the copper on the pennies, eliminating dirt and stains from the pennies. Leave the pennies in the solution for about 30 seconds.
Remove the pennies from the solution. Rinse them thoroughly with water to remove all of the vinegar.
Wipe the pennies dry with a soft cloth.