Copper coins, how to make them like new "Cleaning"

You need the following things:
1-small shallow dish
2-table salt
3-aluminum foil
4-soda-bicarbonate

[@alvarodiasmoedas]

Muito legal

[@nickcellini5609]

Can a coin grader at a grading agency tell that they have been cleaned ?

[@OsScratchMaker]

yes, look at 1:22 and look at the bottom centre of the 2nd picture. theres scratches on the surface of the coin

[@alexisivangarciapagan2413]

Yes and No, as long as you don’t use chemicals that will stick in the coin

[@goldcoins3071]

@@alexisivangarciapagan2413 It's ordinary baking soda, nothing special
Copper gets a darker color over time,
simply clean off the rest of the dirt that was stuck to the coin.

[@loritracy8408]

Thank you! May my LORD & SAVIOR, CHRIST JESUS, OUR CREATOR..My..THE ONE,TRUE, "LIVING GOD" BLESS YOU, for this instrumental nugget of information ma'am!

[@sandykumari7207]

Hi

[@justvisitingterra6459]

DAY ONE : ONE PENNY, A LITTLE DIRTY AND A LITTLE WORN, VALUE: $500.00,
DAY TWO : SAME ONE PENNY ALL CLEANED AND POLISHED, VALUE : $30.00,
IT'S UP TO YOU.
SATT.

[@MItikuKinfe]

hi