This is a slow process and may take many months until your coin is clean.
Wait at least a week before you scrub the brush with a toothbrush. Scrub the coin with dish soap under running water. Place it back in the olive oil if it is still dirty. This is the slowest way to clean a coin. It may take months before you begin to see results.
Use circular motions and keep the blade as flat as possible.
Work on a small area of the coin. You can apply a little bit of lubricant (i. e. olive oil) to help loosen the dirt as well.
You can also build an electrolysis machine using a battery/transformer, a wire, a tank, and a chemical solution. However, this is dangerous and is not recommended. There is a high probability of damaging your coin if you use this method. [5] X Research source
Vinegar and lemon juice are less harsh than other acids. Dilute the lemon juice with 50% distilled water and let the coins soak for 10 minutes. [7] X Research source Chemicals should be used as a last resort.
Your coins will lose value after they have been cleaned. It is best to take your coin to a professional cleaner. [10] X Research source
