Best way to clean coins?

[mckeekitty]

Hi Folks!

I have a coffee can full of filthy coins! Most were found in a park near the ocean and are nearly black from salt water exposure. I tried cleaning them with CLR but it took a long time to soak and scrub them and they turned a strange reddish color. Is there an easier way? My bank won't take them in their dirty condition, and I don't want to lose nearly 10% of their value in one of those coin-sorting machines. Is there a product that will clean them easily? Many, many thanks!

 

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[Ant]

You can put them one of the stamp machine located at our US Post Offices, and then push the coin return, it takes pennies too. When I do that I use a coin tumbler with a little sand, household ammonia, dish soap and water. Tumble for about 20 minutes or so and then they are ready for vending machines.

 

[Ant]

If I want to turn them into the bank or spend them at stores, I use the method at this link:
http://forum.treasurenet.com/index.php/topic,60777.0.html

 

[sniffer]

I use a tumbler with comet and water and a little sand. 20 minutes and they are clean enough to go to the bank

Sniffer