How can you clean a COIN 2 DISPLAY?

Question

i have a bunch of foreign coin monies and they are preey dirty, i tried putting alcohol and toothpaste on them and scrubing them rigously with a toothbrush to no avail. So i watch shows with people that can restore a coin. So i was wondering if anyone knows of a way or product that i can use to clean my coins so i can display them,

i have francs, euros, and djiboutian franks that i accumulated during my time in the usaf, excuse my spelling its late.

thanks for reponses

Answer 1

Brasso and soft cloths.

Answer 2

Don't clean coins. It kills the value anywhere from 10%-50%, depending on how hard you scrub. It's always better just to leave them as is and bear the dirtyness.