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Coke or sprite will change the color of a penny.
If the thought is to improve the appearance of collectable coins, cleaning of any kind will damage or severely reduce their value.Also if you use baking soda and vinigar it will explode.
English Mastiff
copper copper
Balsamic Vinegar
apple cider vinegar
penny bath
No. Vinegar is a mixture of water and acetic acid.
No
A old rusty dog
Penny has the job of working with her Uncle in the meat store as a cashier for a while.
It is not usually necessary to refrigerate any kind of vinegar