Pennies are a ubiquitous part of our lives. We use them for change, collect them as souvenirs, and sometimes, they become cherished family heirlooms. But over time, those gleaming copper discs can dull, darken, and even develop a greenish patina – a sign of corrosion. While a quick wipe with a damp cloth often isn’t enough, the surprisingly effective method of using baking soda offers a gentle, accessible way to restore a penny’s shine. This guide will walk you through the process, explaining why it works and how to do it right, addressing common concerns and misconceptions along the way.
Things to Do When Cleaning a Penny With Baking Soda
- Use a Small Amount of Baking Soda:
A little baking soda goes a long way. Too much can create a gritty paste that’s difficult to remove and could potentially scratch the coin. - Combine With Water:
Baking soda is most effective when mixed with a small amount of water. Aim for a paste consistency – not too watery, not too dry. - Gentle Application is Key:
Use a soft-bristled toothbrush or a cotton swab to apply the baking soda paste. Avoid aggressive scrubbing, which can damage the coin’s surface. - Rinse Thoroughly:
After applying the paste, rinse the penny completely with cool, distilled water. Tap water can contain minerals that will re-deposit onto the coin. - Dry Completely:
After rinsing, allow the penny to air dry completely – ideally on a soft, absorbent cloth. Don’t rub it dry, as this can re-introduce surface damage.
Things to Avoid When Cleaning a Penny With Baking Soda
- Don’t Use Harsh Chemicals:
Acids (like vinegar) or abrasive cleaners will strip away the copper and can permanently damage the penny’s surface. - Avoid Power Scrubbers or Rotary Tools:
These generate too much force and will likely scratch or erode the coin, especially if the patina is already present. - Don’t Soak for Extended Periods:
Prolonged immersion in water can accelerate corrosion. Keep the cleaning process brief. - Don’t Rub Excessively:
While gentle scrubbing is necessary, aggressive rubbing will just create more friction and potentially damage the coin’s surface.
Steps
- Step 1: Prepare Your Workspace:
Find a clean, well-lit area to work in. A small dish or container is helpful for mixing the baking soda paste. - Step 2: Create the Paste:
In your container, mix about 1/2 teaspoon of baking soda with a small amount of distilled water (approximately 1-2 teaspoons). Stir until you achieve a smooth, creamy paste. - Step 3: Apply the Paste:
Using a soft-bristled toothbrush or a cotton swab, gently apply the baking soda paste to the affected areas of the penny. Work in small, circular motions, avoiding excessive pressure. - Step 4: Let It Sit (Briefly):
Allow the paste to sit on the penny for no more than 30 seconds to a minute. This gives the baking soda time to lift the dirt and oxidation. - Step 5: Rinse Thoroughly:
Using cool, distilled water, thoroughly rinse the penny under running water. Ensure all traces of the baking soda paste are removed. - Step 6: Dry Completely:
Pat the penny dry with a clean, soft cloth. Alternatively, place it on a clean, absorbable cloth to air dry.
Final Thoughts
Cleaning a penny with baking soda is a surprisingly effective and accessible way to restore its luster. The key is gentleness – using the right ingredients, applying them carefully, and avoiding harsh chemicals or abrasive methods. The baking soda acts as a mild abrasive, loosening the dirt and oxidation, while the water helps carry away the loosened debris. Remember, pennies are often valued not just for their monetary worth but also for their historical significance. Treating them with care and respect will ensure that they continue to shine for generations to come. Don’t get discouraged if your first attempt isn’t perfect; with a little patience and practice, you’ll master the art of bringing a dull penny back to life.
