How do you clean a penny without damaging the value?

Baking soda and vinegar have proven to be one of the most effective ways to clean tarnished coins. Submerge the coins in a shallow bath of vinegar and let them soak for at least an hour. If you don't have vinegar on hand, filtered tap or distilled water can be used as a substitute.
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Can you clean coins without losing value?

Generally, it is better to leave your antique metal currency alone than it is to try and erase all the grime and grit off of those coins. Cleaning or polishing rare coins devalues them. So, if you're planning on selling them, get an appraisal before attempting to clean your coins.
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What cleans a penny the best?

Vinegar (or Lemon Juice) and Salt

This method is the best way to clean your pennies, and it will produce a very bright orangey-copper color on your pennies. It does this by using the low levels of acids that are contained naturally in vinegar and lemon juice to remove the patina (brown oxidation) on the penny.
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What is the safest way to clean pennies?

Vinegar & Salt

The use of vinegar and salt to clean pennies goes way back. It works on the same principle as using ketchup (Ketchup contains vinegar, salt and tomatoes), but there is less rubbing involved. Mix up a concoction of vinegar and salt. Stir it around to dissolve the salt and then dump in your dirty pennies.
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Why does cleaning a coin devalue it?

This is because anything that touches a coin has the potential to damage it at the microscopic level. The more abrasive a cleaner is used to clean the coin, the more likely it is to remove the upper surface of the coin - damage that can never be undone.
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How to clean coins without damaging them



Does hydrogen peroxide clean pennies?

Place coins in a bowl and pour enough hydrogen peroxide to cover the coins. Let the coins soak for 24 hours. Rinse them with water, then dry with a cloth.
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What happens when you soak a penny in vinegar?

The vinegar made its penny shiny. Pennies become dull over time as copper on the surface reacts with oxygen from the air. The two elements combine to form dark chemicals called copper oxides. The acetic acid in vinegar dissolves these chemicals and leaves the copper surface of the penny looking shiny.
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Why does Coke clean a penny?

The soda cleans the pennies because it contains phosphoric acid. Phosphoric acid breaks down the copper oxygen compound and causes a new layer of the copper to be exposed.
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What will make a penny shiny?

Copper oxide dissolves in acid though! Vinegar is a very weak acid on its own, but mixing vinegar and salt creates a slightly stronger acid that will eat away all the copper oxide, and leave you with a nice, shiny penny!
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Is it OK to clean old coins?

It is best not to clean rare coins as removing the patina can significantly reduce the value of them. For this reason, most coin hobbyists almost never clean their coins. In fact, 99% of coins do not increase in value after you clean them, but many will be greatly devalued.
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Should you clean old coins before selling?

Don't clean your coins! Not only does this cut their value by as much as half (or possibly even more), but it will be an immediate deal-breaker for many dealers who would've otherwise wanted to buy your coins if only they were left in their original condition.
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How do you clean copper coins without damaging them?

Mix 3 parts baking soda with 1 part vinegar. Apply the paste with a microfiber cloth and rinse it off with water. Dry the coins with a microfiber cloth to give them that extra shine!
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What is the best way to clean old copper pennies?

Copper oxide dissolves in a mixture of weak acid and table salt-and vinegar is an acid. You could also clean your pennies with salt and lemon juice or orange juice, because those juices are acids, too.
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What is the best way to clean coins?

Take the coins out and sprinkle some baking soda over them; then use a soft-bristled toothbrush to brush them clean. Rinse them out thoroughly with hot water; using tongs or gloves to hold them to avoid burning your fingers. Place them on a soft, cotton towel and leave to air dry.
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Can you clean a penny with Pepsi?

Dark colas like Coke and Pepsi actually contain phosphor in the form of phosphoric acid. This acid breaks down the copper-oxygen compound chemical bonds allowing a fresh unoxidized layer of copper to be exposed. The copper which is removed from the surface of the pennies ends up in the cola in the form of copper ions.
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How do I restore an old coin?

Simply place one coin in a glass or tub and pour coke over the top, enough so that it is fully submerged in the liquid. Leave the coin to soak for about 5 minutes or so and then check on its condition. If you feel that it needs longer, you can soak it for up to 15 minutes.
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What pennies are valuable?

10 Most Valuable Old Pennies and What They're Worth
  1. 1792 Birch Cent - About $2.6 Million. ...
  2. 1943 Bronze Lincoln Penny - About $1.7 Million. ...
  3. 1793 Strawberry Leaf Cent - About $863,000. ...
  4. 1793 Liberty Cap Wreath Cent - About $391,000. ...
  5. 1944 Steel Lincoln Penny - About $375,000. ...
  6. 1958 Double Die Lincoln Penny - About $336,000.
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Does lemon juice clean pennies?

Pennies are made out of a metal called copper. The copper mixes with oxygen, the same gas that we breathe. This cause something called oxidation and makes the penny look dirty. Lemon juice has acid in it that removes the dirty color or oxidation and makes the penny nice and shiny again!
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What takes the green off of pennies?

There are several methods available for reverting green pennies back to their former shiny copper glory. To clean about two dozen, stir ¼ cup of white vinegar and 1 teaspoon of salt until the salt dissolves in a non-metallic bowl. Soak the pennies in the mixture for five minutes.
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Does water or vinegar clean a penny better?

You can then rinse them with running water and set them on a towel to dry. Vinegar and lemon juice both work really well for cleaning pennies. But, ketchup was the clear winners for our pennies, with soy sauce next, maybe with a little more time they would have gotten a little bit cleaner.
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Does Coca Cola clean coins?

Coke includes phosphoric acid which is the active ingredient that cleans the coins. However, if you let it sit for too long, it will damage the surface (and therefore the value) of your coins.
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Can you use rubbing alcohol to clean coins?

To make your coin bath combine a cup of over-the-counter isopropyl alcohol and two tablespoons of table salt in a bowl. Mix the solution and place your coins in it. Let your coins soak for anywhere from two hours to a week, depending on how dirty your coins are.
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Can you clean coins with nail polish remover?

Use pure acetone, not nail polish remover. Please note that acetone might damage your coin.
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Does baking soda and vinegar clean coins?

With a little time, minimal effort and some basic household supplies, such as vinegar and baking soda, you can bring out the shine in even the dingiest of tarnished pennies. Cleaning coins with baking soda and white vinegar is effective and easy to do.
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