Something with a mild acid in it. Try salt and lemon juice.
Lemon juice and salt can clean a dirty penny alsovinegar and salt
no it does not it cleans the penny a bit.
i think the vinegar will un rist a penny
lemon juice cleans a penny better
coke cleans penny better
penny bath
A lemon cleans a penny better.
dish soap cleans a penny because it soap
lemon juice.(:
Acids are better
No. The orange juice has CuO which cleans the penny by dissolving the rust off of it.
what materital clean pennies better