Restore shine to coins and jewelry
Coins and jewelry that have started to gather an unsightly tarnish can be cleaned with nothing more than a can of Coke.
If, for some reason, you care about how shiny your pocket change is, simply drop the grimy coins in a Coke bath and leave them overnight. In the morning, pour the Coke down the drain, rinse the coins in warm water and pat them dry.
I grabbed a handful of grimy pennies and nickels, dropped them into a cup of cola and let them sit overnight. While most of them didn’t return to their original shine, the black tarnish was removed from virtually every penny. However they did require a bit of polishing with a wash cloth.
It’s wise to be cautious when trying this on jewelry, as the acid in Coke can also strip paint and rust off metal if left long enough. Remove the jewelry and promptly rinse. For something a bit safer, you may want to stick to cleaning jewelry with aluminum foil instead.