What cleans pennies best Dr Pepper root beer coke or 7up?

While all of those drinks contain acids that could potentially clean pennies, the best choice for cleaning pennies is Coca-Cola.

Here's why:

* Phosphoric Acid: Coca-Cola contains phosphoric acid, which is a stronger acid than the citric acid found in other sodas like 7-Up. This stronger acid is more effective at breaking down the tarnish and oxidation on pennies.

* Carbonation: The carbonation in all sodas helps to loosen dirt and grime, aiding the cleaning process.

However, it's important to note:

* Safety First: Do not use any of these sodas on coins that are valuable or rare. The acids can damage the metal and decrease their worth.

* Don't Soak: While soaking the pennies in the soda for a short period (10-15 minutes) can work, it's better to use a gentle rubbing motion to clean the coins.

* Rinse Thoroughly: After cleaning, rinse the pennies thoroughly with water and dry them to prevent further tarnishing.

While Coca-Cola is generally considered the best choice for cleaning pennies, you can experiment with other sodas to see what works best for you. Just remember to always exercise caution and use appropriate cleaning methods.