How do you clean copper pennies without damaging them?

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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How do you clean copper coins without losing value?

Vinegar. A common ingredient in DIY eco-friendly cleaners, the acetic acid in white vinegar can help wear away the contamination on your coins. Soak your coins in a glass or other non-corrosive container for at least 30 minutes, up to overnight, and then wipe with a clean cloth or scrub gently with an old toothbrush.
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What is the safest way to clean old pennies?

Place your coins in a bowl and pour enough white vinegar to cover the coins. Let the coins soak for at least 30 minutes but no longer than overnight. Remove the coins and gently scrub the residue with the toothbrush. Rinse the dirt off with water and dry with a cloth.
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How do you make copper pennies shiny again?

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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What cleans pennies the fastest?

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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Simple Way To Clean



How much is 10 lbs of copper pennies worth?

One modern US penny weighs 0.088 ounces. That means it would take approximately 1,818 pennies to weigh 10 pounds, which would be worth 18 dollars and 18 cents.
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Should you clean old copper pennies?

There is no benefit to attempting to clean a collectible coin. Copper never re-tones to its original color and look anyway. Put down the polish before you destroy something historical and throw away a fortune.
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How do professionals clean coins?

Vinegar and salt

According to research professor Vinod Patel, washing coins with natural white vinegar and iodized salt in distilled water is a non destructive way of cleaning coins.
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Why does ketchup clean pennies the best?

Ketchup contains vinegar, a weak acid, which breaks down the copper oxide on the surface of the penny. The salt in the ketchup goes on to add dissolved chloride ions to the mix. These ions bond with the copper, forming copper chloride. The copper chloride helps the vinegar further break down the copper oxide.
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Can vinegar damage pennies?

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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What substance gets pennies cleanest?

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 vinegar damage copper coins?

Copper coins often turn a muddled brown color, and these marks can be cleaned off with salt and a mild acid like white vinegar. Use a stronger acid like ketchup or cola to strip away the green patina that forms when copper is exposed to salt and water.
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How do you clean old pennies without ruining them?

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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Does Coke clean copper coins?

Yes, that refreshing can of Coke that you like to drink by the pool can also clean coins. Coke's phosphoric acid can clean the oxides that cause tarnish and corrosion.
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Do coins lose value when cleaned?

According to coin experts, cleaning any potentially collectible coins might cause them to lose value. Using chemical cleaners or scrubbing the coins could leave scratches and marks that will be easy for a skilled appraiser to pick up on.
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Is it worth it to clean old coins?

Cleaning old coins might seem like a good way to revitalise the appearance of a treasured item, but could in fact reduce a coin's value significantly, and should be avoided. Particularly in the case of old precious metal coins, cleaning them is most definitely not recommended!
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Is it worth keeping copper pennies?

It turns out all pennies with a date of 1981 or earlier were made from nearly pure copper, which means they are actually worth three times their face value - three cents.
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Should you keep all copper pennies?

So, your best option is to keep those copper pennies until they get rid of the penny, and sell them then. It will be a nice way to make so money! It might seem not worth it now, but in 2026 you will smile upon the day you started to save copper pennies! Thank you for reading, and good luck coin roll hunting!
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Why is a 1982 penny worth $10000?

So for the past 30 years, pennies have been made with an alloy comprised of 97.5% zinc and 2.5% copper, but pennies minted before 1982 are 95% copper and 5% zinc. The price of copper has more than quadrupled over the past 10 years.
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How much does a 5 gallon bucket of copper pennies weigh?

An orange Home Depot five-gallon bucket has a volume of 1,639.91 cubic inches. That means 731.28 or 731 rolls of pennies could fit into each bucket. Each roll being . 275 of a pound would be 201.02 pounds of pennies, thus turning the bucket from leak protection to strongman competition prop.
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How much is a 100% copper penny worth?

6 That meant the copper in each penny was worth about 1.7 cents.
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