Cleaning Aluminium Coins

Take the coin and grease it up with extra virgin olive oil. Now shove it as hard as you can into a medium sized potato. Use a butter knife or standard head screw driver to push it into the center of the potato. Grease up the outside of the potato with a little more olive oil (just enough to thinly coat entire potato) Now put in microwave and set to cook on High power for 7 minutes. Take out and remove your now shiny new aluminium coin and place it to the side while you garnish your lunch with some sour cream & chives salt and pepper to taste and Enjoy!!

 

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I'm surprised no one has mentioned it but that coin is copper nickel, not aluminum. You don't really see aluminum coins much before World War II.

 

Aluminum has a very strong bonding with oxygen and forms a protective layer if they are the only chemicals present. The presence of Sulfur or chlorides causes the oxide layer to breakdown and initiates corrosion of the surface. Of course concentration and time plays a big part in the amount of corrosion that is done. IMO, Jim

 

Thanks for trolling a five-and-a-half-year-old thread, I guess.