How to Clean a Coin Correctly

WARNING: DO NOT CLEAN A COIN WITHOUT EXPERT SUPERVISION! THIS IS NOT AN ADVERTISEMENT TO CLEAN COINS NOR AN ENDORSEMENT OF ANY COIN CLEANING PRODUCT. David Lisot, Video Producer, Cointelevision.
Alvin L. Stern is a coin dealer and numismatic appraiser. In this lecture presentation at the Texas Numismatic Association in 2016 he addresses the great taboo about cleaning coins. Alan contends that it is necessary part of the coin collecting hobby. Learn his perspective about this controversial subject and how to do so responsibly.

[@CoinTelevision]

Thank you for your feedback. We have added a WARNING to the video that cleaning can be hazardous to your coins' health. CoinTelevision is committed to bring news and information about the coin collecting hobby. David Lisot, Producer, CoinTelevision.com.

[@redcarpeteater6903]

My old drunk daddy had a great way of cleaning coins. Every time I got a few together, he'd come to my house and clean me out.

[@erikaholland5499]

no.

[@OnurOzer-nn4kp]

lol?

[@erikaholland5499]

tmi bro tmi

[@tycanfield8190]

🤔🤭😏

[@aphixx25]

@@CreepyCrawIies …I believe the vernacular being used here is commonly referred to as, “He-Haw.”

[@jazzy200971]

3yrs later and he has finally finished cleaning his coin

[@huckfinn9225]

comment like # 50

[@squ1dTr1cksandclouds]

😅😅😅😅😅

[@PeterMonaghan-io6bp]

Shouldn't clean coins that have a lot of wear on them that's what I think

[@CoinTelevision]

Good words and excellent explanation about difference between cleaning and conserving a coin! Thank you for watching CoinTelevision! David Lisot

[@CallmeOIIZCoinscompany]

Okay

[@charlesjeffers5092]

How do I find that stuff.

[@the_ltz_guymaster7912]

He looks like the guy u never pawn your stuff to

[@Justin-hy5gl]

The_ltz_guy Master yeah and you don’t pawn coins but I’m assuming ur just talking in general

[@JMARTIN1947]

@@Justin-hy5gl He's saying the guy looks skeezy

[@Justin-hy5gl]

Reggie Wagstaff yes I know that’s why i said assuming u just, mean in general

[@AUFR_]

no

[@snowysnail2018]

@Omari Dominik Why would u do that tho lol, what’s the point

[@eidtnaci]

Friends don’t let friends clean coins

[@JoeKind1958]

I worked as a Bench Jeweler for almost 40 years. How about using a steam cleaner using distilled water only or how about a ultrasonic cleaner using warm distilled water with only a couple of drops of Dawn dish soap mixed in. I would just like to clean the dark finger grime out of the details. Both processes would not change the coloring or remove tarnish. Any thoughts or comments on this are welcome. 😁☕️

[@Michel-7.7.7]

He couldn't sell his "magic snake oil coin cleaner", promoting your sense making method

[@silvertrain57]

Ultrasonic toothbrush, maybe? Just keep the brushes from touching the coin. Any thoughts?

[@user-jf5vy9un1k]

😊😊

[@JoeKind1958]

@@silvertrain57 I don't have any hands on experience with an ultrasonic toothbrush, but you might have a good idea there. The word "ultrasonic" is misused a lot when it comes to electronic cleaning machines. Most inexpensive, so called ultrasonic cleaners simply vibrate the water to make it look like some actual cleaning is happening. High frequency sound waves in a real ultrasonic cleaning device will give you a tingling feeling on your skin when you put your fingers in the water. Not sure if the tooth brush will do that when put in some water. One tip on using an ultrasonic cleaner. You don't just throw your item to be cleaned in the cleaner and let it sit on the bottom of the cleaning tub. Thats like pushing on an uncovered speaker and expecting the sound to not change. You need to suspend the item in the water. I had brass wires bent up into hooks to hold rings in the ultrasonic for cleaning. For a coin I would make a simple wire like basket to hold a coin for cleaning using small diameter insulated covered solid wire so the coin does not vibrate against uncovered wire that could cause small abrasive like marks. 😁☕️

[@silvertrain57]

@@JoeKind1958 Thank you, very kind of you.

[@strat959]

Classic snake oil salesman. Do not "clean" any coin that might have any numismatic value. Dirt, grease, tape residue, sometimes paint or ink, might be safely removed with acetone, but if you don't know what you're doing, don't do it. I love when he says he cleaned a "proof gold coin" that had "bluish, whitish, opalescence" on it.

[@evilsharkey8954]

I work with optics and frequently have to clean spots, smears, outgassing haze, stubborn dust, or smudges off of first surface mirrors, including gold and aluminum. In my experience, Q-tips are too scratchy for mirror surface metal. They WILL scratch, even if fluffed out. For that, I use synthetic cleanroom swabs. They are much less likely to scratch. And don’t use paper towels to dry! They’re more abrasive than you may realize. Use clean microfiber, like for your glasses. Better yet, use a dry blower, like canned air at a distance or those blowers professional photographers use, and blow the liquid to the edges to get absorbed by a microfiber cloth. If I was going to remove a fingerprint, I would first use a clean strip of Scotch tape. It pulls off fingerprints beautifully. What’s left can be washed off with a quick rinse of methanol (wear gloves) blown off with clean air (not from your lips!). I have methanol in a laboratory squirt bottle, and it’s great! Methanol is my favorite for that cloudy haze that sometimes comes from other materials, especially plastics and paints, outgassing and also for dust spots that don’t want to blow off. Stubborn spots may need gentle wiping with poly fiber swabs and different solvents, like acetone or even your own breath fogged onto the coin. With soft metals like gold, there is a good chance of scratching from anything solid, but with enough skill, they can be so small they don’t detract. Practice on cheap, already damaged proofs before trying to de-scum anything valuable! Use a magnifier, too.

[@CountMeOut33]

I learned something new. Thank you 🤙🏾

[@gwendolynatkins6124]

Thank you for your input. It was very helpful

[@Tatenak]

High class advice. ❤

[@Tatenak]

Does waxing help to preserve the coin while retaining value?

[@evilsharkey8954]

@@Tatenak I’ve never waxed one, so I don’t know. I know oils are popular for preserving coins with a thick patina, like well aged coppers.

[@ItsNoobPlaysYt]

Me trying to clean a $1 and ended up wasting $30 on the supplies

[@TheOttawaguy40]

lol! this comment is gold!

[@miketheknife2]

I was always told never clean a coin, it kills its value!

[@ddivincenzo1194]

It's ok to remove surface grime.

[@jotarodio4750]

No everyone sells their coins

[@the_coin_man]

@@ddivincenzo1194 for normal surface and ground you wouldn’t want to wet the Q-tip or use a lot of pressure sure and once you’re done lightly getting the dirt off, put it in a coin tube or a coin holder so it doesn’t get dirty

[@CoinTelevision]

Thank you for your feedback. This presentation is an excerpt of a video that was delivered at the the Texas Numismatic Association as an educational presentation in 2016 where we videotaped several different lectures. We have changed the description of the video on KZbin to address your concerns to read: WARNING: DO NOT CLEAN A COIN WITHOUT EXPERT SUPERVISION! THIS IS NOT AN ADVERTISEMENT TO CLEAN COINS NOR AN ENDORSEMENT OF ANY COIN CLEANING PRODUCT. We were not paid nor have any interest in the product discussed. CoinTelevision is devoted to bring news and information about the coin collecting hobby. Thank you again for your feedback! David Lisot, Video Producer, CoinTelevison.com.

[@slaysabz3565]

That long

[@ariella2828]

lol cleaning coins is fine

[@red2965]

Can you use a soft bristle brush to get more detail?

[@rmedina3856]

That guy drinking the Diet Dr.Pepper really looks like its working for him

[@mrtwis7]

😂😂

[@thedapperscrapper3451]

Skinny people don't drink diet soda....

[@mannylovato74]

@@thedapperscrapper3451 qq+¹qq1qq

[@willylickit8694]

Haaaaaaaaa jokes that shit made my day

[@Indianny]

It taste just like regular doctor pepper

[@madgroundhog8020]

The only way to "clean" a coin according to ngc,pcgs and anacs is to pay them to "clean" it..😅

[@user-lx2is5tp8b]

What should you store your valuable coins in plastic clear cases or yellow manila envelopes this is the second video where I’ve heard somebody insinuate yellow manila envelopes dirties up the coin?

[@QuaaludeCharlie]

If you can still notice any of the cartwheel don't conserve or clean that coin until you have a Numismatic Value for the coin as any cleaning will effect that cartwheeling and then you have Ruined the Value . If the coin has already lost the cartwheel , go ahead and do what you want to do with it , it's just a clad coin at that point .

[@rafaelbaeza163]

Where can l buy one of that bottle

[@don951]

Many seem to be confused about the difference between cleaning a coin vs. conserving a coin. I always explain it like this: Cleaned = Improperly Cleaned & Conserved = Properly Cleaned. Conserving a coin is a learned skill. Done correctly it can enhance the appearance and value of the coin. Done inproperly and you have a coin that is considered to be "Cleaned" which will not look as nice and will lose some of its value. So you should never improperly clean a coin, however proper conservation can not only be desirable it is often absolutely necessary. However, beginners need to research and practice before ever attempting to conserve coins. There is always a risk you may damage the coin.

[@Anonymous-qx1vd]

Ok, but is this video viable?

[@ZaibatsuHeavyIndustries]

@@Anonymous-qx1vd no. It will leave tiny scratches so if your coin is worth more than like 5 dollars than don’t do it.

[@zonk1477]

@@Anonymous-qx1vd Here is the correct way to do it kzbin.info/www/bejne/iJeto5-Ka6uVe9k

[@Car1Sagan]

@@Anonymous-qx1vd Yes itis viable

[@mth469]

@@ZaibatsuHeavyIndustries How can cotton swab scratch a metal coin?

[@dannymccleaf2609]

It all depends on the potential value of the coin you are attempting to clean or restore.

[@based_mediumchungus1788]

@Gavin Gas 🤓🤓

[@dregga7638]

I think it's more about the condition of the coin. All you want to do is to remove the dirt. Even expensive ones that little kids spilled food on are better off without it.

[@marlysmilligan3015]

What do you use, to clean the coin & the different ones. ?? What cleaner on you use ??

[@CollectingWorldUK]

No such thing on how to clean a coin correctly. Bye history and the numismaniac value of that coin. Nicely done on how to send people down the wrong path in to a hobby that I love. The people like me who tell people not to clean coins are the bad guys. Thank you

[@jonfero8072]

We’re not the bad guys. let them all ruin their coins and drive the value of ours up. They’ll learn the hard way when getting them appraised.

[@TreeHealthReporter]

I'm new to metal detecting.So if i find a coin in dirt. Just wipe it with a little water. Or just leave it as i found it? Thank you

[@mypeeps333]

Let them clean them it makes mine more valuable 🤣🤣🤣🤣

[@Floridaman457]

To each their own . Some people like details better than dirt. Get over it 🤷🏼‍♂️

[@LuvDogs65]

When they are pretty bad to begin with, what's the harm?

[@jesusblessthesecommentsamen]

How do you know what coins to clean ? Got 1000s of them that go back to 1800’s and every first mint coins, settlement, war and 1sr parliment mint worked out the value but not grade.

[@YGODueltainer]

so I have this Sacagawea $1 coin here with "E Pluribus Unum" engraved on the back, is it worth anything?

[@EnviSnipes]

Just worth $1, it’s a modern dollar coin

[@davidmccarthy5568]

What a great share. Got to love it.

[@MoonRide333]

Great information! Thank you

[@Vinyl_Dave]

So much nonsense I was told as a child 50 years ago about the cleaning of coins totally losing their value - NO! They look so much better when they're clean and shiny. Why would anyone want a collection of dirty old coins? (I do understand you can overdo it, but I still think the date needs to be readable.)

[@markosterman419]

He did an experiment on a proof gold coin! What a brave guy!

[@rockinroy]

thinking of it archaeologically, there is absolutely nothing wrong with this procedure and it is quite favorable in such conditions as shown here.

[@davbulla413]

I've got some pennies they are in real good shape what about 50 years ago someone melted a candle in between them any good ideas on getting the wax off of those mint state pennies

[@susanbreeland8620]

Thank you so much for this video!!!

[@lenadial4678]

What is the name of cleaner you mentioned, to clean coins?

[@shawnacolb6551]

I don't know how I have missed ur videos just had one pop up from 3 yrs. Talking about different cleaners, u said said something about a same of bu plus any changes e u still have? Or have u come across something even better. I'm probably 3 yrs to late, thought I would check though. Thank you

[@kimkitchen6292]

I got a bowl of warm water and added a smidgen of dawn. I only let the coins sok for a couple of minutes then rinsed and dried with microfiber cloth. Was that wro g?

[@mjmcnult]

This guy could be a character in Breaking Bad.

[@duffhole6304]

I was thinking someone from the bar on Shameless.

[@Th3budtender]

This product of mine will clean the shit out of your glass jars

[@wesleyestill7653]

Thank you, great video.

[@Kielie]

Got a American quarter today which is pretty interesting to me because I live in Canada and have never been to the us or any other place that isn’t inside Canada. I don’t intend to sell it or anything so I don’t really care about the reducing value part of cleaning coins plus i don’t intend to use it(I have enough of my own currency) so I’m just going to clean it and put it in some nice case.

[@Jakey4000]

I was surprised U.S quarters weren't used interchangeably in Canada, here in New Zealand before we changed our coins the Australian 20c/10c/5c were all used interchangeably here.

[@notheskog]

Funny you say that, I live in the US and have a Canadian quarter. I have never been to Canada but I would love to some day, your currency lovely.

[@lhl9010]

People find other coinage in with their change all the time, it is not unusual.

[@archtopp1]

Is ultrasonic a viable way to clean coins?

[@maxf7351]

Coins surfaces are porous, & when you take all of the dirt & crap off, you expose the pores again. Oxidation has set in once, possibly due to some impurity or improperly mixed alloy, of course it's always going to come back. I'd argue that in those cases, oxidative conditions were created & it came back. Rinsing those may be giving it fresh grounds to do its thing, in some cases at least. Good vid

[@charispenny7965]

What liquid did you use to clean it?

[@smartacus88]

8:47 What coin Is that the guy is holding up? I have one. I found it in my grandpas things after he passed. Its not in very good shape. About the condition of the one pictured. No date i can see.

[@mrvrose9999]

“I’ll be over there after here if I can help you.”

[@loril.mangold8160]

Did that solvent take the surface off that Table?

[@user-yy1ob6ff9s]

I would love to try it.

[@lkayh]

My grandpa owned a service station (back when they were actually SERVICE stations-as in when you got gas, they’d come out and pump your gas, check your oil, and wash your windshield). He’d come home and go through the change from his till and take out any silver-and given the guys handling the register were mechanics and had grease and oil on their hands, the coins were often pretty grungy. Grandpa would dip them in kerosene and rub them off. Worked wonders! 😂

[@user-wg6fm8kc4y]

He was a very lucky man he must have found a lot of silver in his day

[@lkayh]

@@user-wg6fm8kc4y yes, he did.

[@granjmy]

I worked at a Casey's General Store once. Had a customer buy a pack of cigarettes with 3 silver commemorative dollar coins. I still have them. That was in like 2002.

[@lkayh]

@@granjmy That would make my day. I get excited if I get a wheatie in change. LOL.

[@granjmy]

@@lkayh LOL! It did! I paid $1 each for the 3 coins.

[@nathanaelvass1784]

Close your eyes and it's like Lin Manuel Miranda teaching coin cleaning techniques

[@FeedCrisTops]

What’s the maximum time you would let those coins sit in your solution? Love the video

[@evilsharkey8954]

It’s an organic solution, so any time before the solution evaporates and re-deposits the gunk back on the coin. Organic solvents do not attack metals. They can leave icky deposits, though.

[@gregblake2635]

Will this work on a crusty KGll?

[@danbaron9094]

He's cleaning bullion or what we'd consider junk coins. I'd never do this to a coin that had numismatic value.

[@Stevesguitartraveling777]

When I went to go trade an old pennies, giving an estimate, I was told from the experts that you do not clean coins the end. Experts, who take a look at them, can detect that it was cleaned or touched, and that the value goes down tremendously more than it would when it was dirty.

[@GershTalentAbeny]

they're all liars you talking about coins that are over 100 years old and if you're lucky enough to find one in circulation they're filthy you can't even see them does dirt all around them and there's ways of cleaning them that they can't see with the microscope. you just got to do your homework.

[@paulmolz9129]

Does it lower the value cleaning coins?

[@todbaudoin7315]

How do I get this product?

[@user-qf9cu6er5q]

How do you order the Coinserve?

[@tubularfrog]

FYI: The CONSERV product is simply mineral spirits you can buy in any paint store or hardware store, repackaged with their product name and charging several times the amount it costs.

[@roseary9198]

Any source

[@evilsharkey8954]

It’s probably cleaner. The organic solvents you buy in the cans are often contaminated with other organic substances.

[@tubularfrog]

​@@evilsharkey8954 "A word to the wise is sufficient."

[@MarkChristopherBergeron]

I believe the zink coins have a reaction with tbe nitrogen in the air !

[@janbrant6451]

I have always been told never clean your coin because it ruins the value of the coin. I'm not cleaning my coins but thank you.

[@krateproductions4872]

I found some coins in my father’s wardrobe and they are so old that you can barely read the text. How do I rid it of dirt? I don’t want to make it brand new but just not dirty.

[@TheHeavensFellen]

@@CreepyCrawIies the guy said dont use water

[@KDbelieves]

@@krateproductions4872 acetone for 30 seconds. Tap dry then leave it to air dry fully. Repeat one more time if needed.

[@pjdave66]

Good video, thank you

[@hertenbergerbrothers2446]

Is salt and vinegar bad to use to clean them?

[@hopeciccaerllo_delrio126]

How can one purchase Service?

[@canadiannavy9229]

Can I buy this in Canada

[@LuvDogs65]

Thank you for the heads up. I don't see what he did wrong. Common sense on what to clean and what to leave alone.

[@ososcribww]

How do I clean metal pennies any advice

[@williamwoolley7424]

Where can I get this product? Or how do I send for the process before grading Thanks

[@cal30m1]

It’s the same as unscented low Oder lamp oil.

[@jamesbaldwin8546]

How Can I get a test bottle of bu+?

[@sunny15300]

I have a 2007 silver dollar that is oxidized on the back and front. Should I clean it with water or find out how much it's worth before I do anything to it?

[@ZaibatsuHeavyIndustries]

There isn’t such thing as a 2007 silver dollar it is probably a 1oz American silver eagle. But if it is oxidized you probably should leave it as it is but if it is really bad use acetone.

[@sunny15300]

@@ZaibatsuHeavyIndustries Yeah, I realized my mistake a while back but didn't edit the comment. Anyway, the coin just looks dark on both sides, I'm not really sure if thats oxidation.

[@ZaibatsuHeavyIndustries]

@@sunny15300 yeah, that happens sometimes when the coin is improperly stored. I would just leave it how it is probably worth like 27$

[@demoking1422]

I learned a lot more from the comments than I did from the video

[@britneyschweigert9555]

Every one of these coins looked worse afterwards. I guess that's what I should've expected from a Miami Vice villain.

[@mr.e695]

IDC who ya are ... that's funny right there ✌️

[@albertvega8154]

Alvin loved your prevention. I have a question, I have a 1944 steel penny would you advise cleaning it, and if so how?

[@trailguy]

44?

[@trailguy]

If it’s a 44 and not a 43 DO NOT CLEAN IT google it’s value

[@Salty_TaterTodd]

I assume this is a joke 😂😂

[@monaworkman6897]

My man with the 44 steelie....I actually specialize in those I'd be happy to meet you in a dimly lit place with no names or info exchanged. Anonymity purposes of couse, your safety. You don't want people knowing what you have and what you're up to. How about this evening perhaps?

[@HiSkippy]

Most....99% steel pennies are 1943. If you have a 1944 steel penny : keep it safe, send it in to be graded. You might have a very valuable penny!! Good Luck ... keep us updated!!!

[@Animetube-se4er]

Do you now the value of 10 paise coni value details :coin shape: circle year : 1992 edge: smooth

[@epinkel]

i literally searched this up, thanks brain

[@charispenny7965]

Can I please buy some of the coin cleaners?

[@TheCoinHunt3r]

Interesting video 👍

[@rafalsobocinski9920]

wish to have one bottle but 44 £ for delivery to UK its to much :( ..

[@michalzajic8602]

Just use citric acid it will do the same job

[@theblueflame7592]

I identify as a Clean Coin and I totally back this message.

[@timothyraymondparsons5464]

I just got a metal detector for Christmas. What's your website for me to take care of coins I find

[@boster8368]

WELL Its been 3 years did you find any coins yet

[@Geenalee1]

You do this whole vid and Don't put the link to buy this cleaner in the Video ????? Why?????😐

[@canadiannavy9229]

Anyone have a way I can clean my Canadian and American pennys ?

[@corvettez0677]

whats a pitina is it a coating on the coin

[@deannekliene2673]

Ancient coins sometimes have to be cleaned to see them...

[@jiayouchinese]

Will PCGS know if you use this stuff?

[@eidtnaci]

Yes never clean ur coins ever

[@gregorymccoy4308]

I say yes they will notice but i do know dealers that conserve some coins before grading and it was undetected. Keep in mind though that this guy has been in dealing coins all his life with lots of experience. I would never clean or attempt this on a valuable or sentimental piece because it can knock of 40% of its value if done improperly or more

[@jayburkhart1800]

Is your product approved by pcgs

[@gregmiller5335]

here, pass that around

[@threeleggedman]

People yell about cleaning coins, but most of these coins are not worth anywhere near what they should be worth. They're to be held and looked at and that's not fun if they smell and look like crap. I have some silver quarters with black spots on them. Nothing seems to work, I wonder if this stuff would take it off.

[@nancyallen8497]

Cleaning a coin is the worst thing you can do for its numismatic value

[@ANTI_KREMLIN]

Should you clean old coins? - In almost all situations the answer is no, you should not clean old coins. When a coin is graded, the condition of the coin does not include its cleanliness. - Collectors of old coins will fully expect a patina to have developed, and most will appreciate the appearance. - Cleaning an old coin would remove the patina or toning that helps make it even more unique and visually appealing. Removing this effect can significantly reduce the value of the item. - Most coin cleaning products are abrasive, and could damage the coin. Non-abrasive chemicals can still react with the other metals found in some old coins. The physical act of scrubbing or polishing can also wear down the design, destroying one of the most important factors in deciding a coin’s grade.

[@nickcellini5609]

What about coins with green, white, or black mold growing on them ?

[@PeterYates-md9nx]

1

[@MRkriegs]

@@nickcellini5609 these coin guys would say that mold growing on a coin increases its value and is a war crime to remove. =D

[@firstifuslastifus1217]

I just want to clean my coin ring. So, I'm guessing since it's already in jewelry that it's probably not worth that much anyway.

[@angelicabarragan1493]

i JUST cleaned my coins and there were some like blue stuff that wiped off and some still left on the coin 😭someone help

[@angelicabarragan1493]

Some of it turned greenish 😭😭

[@michaellooney1089]

Some Golden Rules of coin collecting. Number One, NEVER clean them. Number Two, NEVER (I did this when I was young, with no idea) keep them in plastic. Number Three, DON'T 'slab' coins, it's a con, and they use FANTASY 'grading'! Number Four, keep them in special trays eg Lindner - it doesn't effect their surface in any way. Just some of the great ideas I've picked up over my 40+ years of collecting.

[@granjmy]

Are acrylic coin cases like Air Tite ok?

[@rickengen5249]

Thank you

[@mercoid]

The most popular show on television

[@johnhempstead3074]

I use steel wool and a rock tumbler.

[@CasinoBaccaratKingmaker]

THE BEST OF THE BEST STORE

[@chris93703]

9:33 What is meant by "before they screwed" up MS70?

[@don951]

Apparently the formula was changed and it is not as effective.

[@chris93703]

@@don951 I have used MS70 and it seems to work for me.

[@don951]

@@chris93703 Cool. I haven't used it myself. I hear that from collectors that used the product years ago.

[@saddamros1990]

Where I can sell my old coins 1972 and 1974

[@timothyfrye5535]

Do u buy old coins

[@Aleashea-jl6mg]

I have a good condition 5c 2002 P Jefferson coin but the Picture is totally upsidedown

[@willieelumper508]

Whats it smell like?

[@wadepearce6656]

What is the liquid

[@anandkumarsingh5666]

Sir please make a video in indian coins

[@vishalerriah1586]

hello need your help i put cleaning solutions ( pro saniter) in a contener to wash all my coin copper & silver but i forget to wash .next day went going to wash all my silver coin change colour. please help what to do .

[@pamelaobiols7050]

Polish with a bit of baking soda & velvet cloth

[@ZaibatsuHeavyIndustries]

You ruined them. DO NOT CLEAN THEM. In any way shape or form. Polishing them will restore to the original color but will be worth a fraction of what they were before. You ruined them. Sorry. Never clean any coin again.

[@someoneyoudontknow7407]

I clean a bunch of coins. Very satisfying. I also plan on turning them into rings so there’s that too.