How do professionals clean coins?

Ultrasonic Cleaners

These coins are cleaned by using distilled water with a small amount of detergent in a special vibrating container. Acid based cleaners will eat away at a coin's surface diminishing its value.

How do you clean coins without hurting 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.

What does PCGS use to clean coins?

PCGS Restoration will remove contaminants that are determined to have been deliberately and artificially applied, including putty, grease and other substances used by "coin doctors." Restoration also will remove contaminants on the coin's surface caused by improper care or storage, such as polyvinyl chloride (PVC) or ...

Does cleaning a coin devalue it?

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.

What is the best way to clean dirty coins?

Pawn Stars: 5 SUPER HIGH PRICE APPRAISALS (Big Offers WAY Over Asking)

Does hydrogen peroxide clean coins?

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.

Can Coke clean coins?

Coke and off-brand colas will quickly remove the tarnish. Just don't drink the coke afterward. Coke contains phosphoric acid that cleans the oxides. Try a variety of citrus juices to see which works best or simply let your pennies soak in lemon juice.

Why do coins lose value when cleaned?

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.

How do you tell if a coin has been cleaned?

When the coin leaves the mint after just being struck, it has a shine or luster. The original mint luster is gradually destroyed as a coin circulates through commerce. Cleaning a coin will also remove the luster thereby destroying the original surface characteristics.

Should I clean coins before selling them?

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.

How does NGC clean coins?

Applied substances. NCS can remove many substances applied to the surfaces of coins to change their appearance, such as putty or lacquer. As with artificial toning, removal may reveal other surface problems, and the coin may still receive an NGC Details grade after conservation.

Does NGC grade cleaned coins?

WIPED describes a coin that displays surface hairlines in one or more isolated areas. This is usually the result of accidental mishandling rather than intentional cleaning, but it still requires Details Grading. NGC's graders may specify OBV WIPED or REV WIPED to more accurately describe the condition.

What is ms70 coin cleaner?

MS-70 coin brightener is a cleaner liquid blend of industrial detergents and surfactants designed to remove surface contamination from metal without disturbing the metal surface itself. We also offer a line of coin cleaning accessories including finger cots, cotton gloves, microfiber cloths, and coin tongs.

Does cleaning silver coins decrease value?

1. The most important thing NOT to do is clean your coins. Cleaning rare numismatic coins will significantly reduce their value – plain and simple. Although you don't lose much by cleaning a coin which derives value only from its silver content, it's not worth the risk.

What liquid cleans coins 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.

What causes rainbow toning on coins?

Toning occurs naturally over time. It is primarily the result of oxygen and/or sulfur reacting with the coin's metal. However, the toning process can be accelerated by heat, moisture, and various chemicals in the environment.

Does baking soda damage silver coins?

Cleaning coins using baking soda is surprisingly simple. While you may not want to attempt this method on very valuable coins or very old coins, you can just dip your fingers in a little baking soda and use it to scrub the coin. You would see that using baking soda to clean coins is both harmless and effective.

Does toning hurt coin value?

Different colors and patterns of toning can have varying effects on a coin's grade and value. For example, brown spotty toning could decrease a coin's value, while colorful rainbow toning could increase it.

Is it illegal to clean coins?

According to Title 18, Chapter 17 of the U.S. Code, which sets out crimes related to coins and currency, anyone who “alters, defaces, mutilates, impairs, diminishes, falsifies, scales, or lightens” coins can face fines or prison time.

How much is a 1943 steel penny worth?

Value of a 1943 Steel Penny

They are worth about 10 to 13 cents each in circulated condition and as much as 50 cents or more if uncirculated.

Is a 1964 nickel worth anything?

A 1964 nickel is worth approximately 5 cents on today's market. However, if the coin is rare, uncirculated, or in mint condition, it can be worth as much as $225–$275! In fact, if the nickel is extremely rare, such as the 1964 SMS variant, it can even be worth $8,750 in MS65.

How long do you leave a penny in ketchup?

Will Pepsi clean pennies?

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.

How long should you leave coins in Coke?

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.