how to shine up pennies

Daniel Parker

3 min read

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16-01-2025

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Pennies, those humble copper coins, can hold surprising sentimental value. Whether you're cleaning up a collection, preparing them for a craft project, or simply want to restore their shine, learning how to shine up pennies is a rewarding task. This comprehensive guide will walk you through various methods, from simple household solutions to more advanced techniques, ensuring your pennies sparkle like new.

Why Do Pennies Tarnish?

Before diving into cleaning methods, it's helpful to understand why pennies lose their luster. Pennies minted before 1982 are primarily copper, while those minted after are zinc coated with copper. Both types tarnish due to oxidation – a reaction with oxygen in the air. Dirt, grime, and handling also contribute to a dull appearance. Knowing the cause helps you choose the right cleaning method.

Simple Methods for Shining Pennies

These methods are great for a quick clean and require items commonly found in your home.

Method 1: The Vinegar and Salt Soak

Materials:

• White vinegar
• Salt
• Bowl
• Soft cloth or paper towels

Instructions:

1. Combine equal parts vinegar and salt in a bowl. The ratio isn't critical; a generous amount of salt in the vinegar works well.
2. Submerge your pennies in the solution. Make sure they are fully coated.
3. Let them soak for 1-2 hours (or longer for heavily tarnished pennies).
4. Remove the pennies and gently scrub with a soft cloth or paper towel.
5. Rinse thoroughly with water and dry with a clean cloth.

Pro Tip: For extra cleaning power, add a few drops of dish soap to the vinegar and salt mixture.

Method 2: Baking Soda Paste

Materials:

• Baking soda
• Water
• Soft cloth or toothbrush

Instructions:

1. Make a paste by mixing baking soda and a small amount of water. The consistency should resemble toothpaste.
2. Apply the paste to the pennies using your fingers or a soft toothbrush.
3. Gently scrub the pennies, paying attention to crevices.
4. Rinse thoroughly with water and dry with a clean cloth.

Note: This method is less abrasive than using commercial cleaners.

Method 3: The Lemon Juice Method

Materials:

• Lemon juice
• Salt (optional)
• Bowl
• Soft cloth or paper towels

Instructions:

1. Pour lemon juice into a bowl.
2. Add a pinch of salt (optional) for extra cleaning power.
3. Submerge the pennies.
4. Let them soak for about 30 minutes to an hour.
5. Gently scrub with a soft cloth and rinse thoroughly. Dry with a clean cloth.

Advanced Penny Shining Techniques

For exceptionally tarnished pennies or those with stubborn stains, these methods offer a more thorough clean.

Method 4: Electrolysis

This method requires a bit more setup but is very effective.

Materials:

• Glass or plastic container
• Baking soda
• Water
• Stainless steel utensil (like a spoon or fork)
• Penny (to be cleaned)
• 9-volt battery
• Alligator clips (to connect battery to metal)

Instructions:

1. Mix a solution of baking soda and water in the container.
2. Connect one alligator clip to the negative terminal of the battery and attach it to the penny.
3. Connect the other alligator clip to the positive terminal of the battery and attach it to the stainless steel utensil.
4. Submerge both the penny and utensil in the solution, making sure they don't touch each other.
5. Let it sit for approximately 10-20 minutes. Monitor the process; the penny will begin to shine.
6. Remove the penny, rinse, and dry.

Caution: Electrolysis uses electricity. Always supervise children during this process.

Important Considerations

• Avoid abrasive cleaners: Harsh chemicals and scouring pads can damage the pennies.
• Protect your hands: Wear gloves when handling chemicals.
• Dry thoroughly: Leaving pennies damp can lead to further tarnish.
• Test on a single penny first: Try any new method on one penny before applying it to your entire collection.

By following these methods, you can easily restore the shine to your pennies. Remember to handle them with care, as even cleaned pennies are still fragile artifacts. Enjoy the satisfying results of your shiny, sparkling collection!