How to Clean a Coin

Introduction: How to Clean a Coin

Warning!!!

Doing this tutorial may result in damaged coin if left too long in the acid. BEWARE!!!


Hello today in this tutorial we are going to clean a coin. You will need the following.

  • Lemon or Lime juice.
  • Glass container like a mason jar.
  • A coin.

Step 1: Chemical Eroding of the Coin.

Lemon and Lime juice are both acids. They erode whatever they come in contact with if given the proper amount of time. So don't leave your coin in the acid for more than 30 minutes or your coins major features will dissolve.

Put the acid in the jar along with the coin. Make sure you can check the coin and flip it so both sides touch the acid equally every five minutes.

Step 2: Finale!

If you did this right the gunk on the coin should have dissolved not the coin itself. Good luck and I hope you got this right because if not it can be disastrous for the coin.

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    8 Discussions

    If you ask any coin dealers they will tell you not to clean up any collectibles coins!

    It will hurt the value of the coins even though they look better, but you can use this process on other things, pots pan's, coins if you aren't going to sell them!

    2 replies

    Sorry I feel really bad about posting that instructable. Thanks!

    ohh that is not good you just reduced the value of thst coin a nice amount

    There are other uses for coins besides collecting. If used in a project you may want an attractive shine or a little bling. Look up penny bar tops where they shine half of the pennies before epoxying them in. I don't think it's fair to just shoot someone down if all you can present is your own narrow point of view. And to add to the topic you can also "paint" copper coins with ketchup to shine them up! Keep exploring, keep experimenting and keep learning. There are no mistakes, just unexpected outcomes to add to your knowledge.

    1 reply

    Yeah. My parents told me I shouldn't have done that to my coin after I did that. Thanks!