Any way to clean clad quartes and dimes without tumbling?

[ohio fred]

n/t

 

[bootyhoundpa]

i used to use salt and vinegar.... i forget the ratio of each but it works ok if you dont leave them in too long ....only takes like 5 minuets..

 

[ohio fred]

n/t

 

[Robert2300]

Is there any way to find coins without metal detecting?
Just kidding. I don't know of any. I use vinegar and salt and it talks45 min to an hour. PRESTO! we're done.
I run them again with soap the on the next tumble to get the funky look washed off.
Robt2300

 

[ohio fred]

Someone sent me private message with another formula i will have to try .I di try vinagar and a different salt for like pickeling it did work but kind of dulled the coins.or tarnished them,have to clean a little to take to coin star.