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 Replies: 28 / Views: 8,453 |
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Moderator
 United States
56855 Posts |
I just watched a program on using dry ice to clean things and was wondering if it can be used to clean coins with out any damage to the coins. Does anyone have any input on this subject? http://www.coldjet.com/en/index.php Thanks, John1  |
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Pillar of the Community
Australia
3831 Posts |
I can understand if you use it to kill bacteria but how do you clean coins with solid carbon dioxide?
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Pillar of the Community
United States
1231 Posts |
ColdJet make a unit that can clean books using a wand and dry ice that is in the form of sugar crystals.
The problem with it is, the unit cost $20K. I contacted ColdJet and spoke with a distributor in my area, but they don't carry that unit.
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Pillar of the Community
United States
1231 Posts |
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Bedrock of the Community
United States
20753 Posts |
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I can understand if you use it to kill bacteria but how do you clean coins with solid carbon dioxide?
Why that is really simple. You just grab a piece and rub a coin with that piece. Just remember to only use the smooth side of the ice.   Or you could put a coin in a glass of water and add a piece of dry ice to that glass. The vapors that are emitted of CO2 will appear as smoke and you could tell people it's magic. Of course nothing will happen to the coin which is also proof of magic. Place a coin on a block of dry ice and the germs and bacteria will all be killed and fall off making that coin safe to eat.  Just one more thing that will not work for coins. |
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Pillar of the Community
 United States
2448 Posts |
 What did he say? |
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Pillar of the Community
United States
3077 Posts |
i am surprised Carl didnt mention the blow torch as he normally does for coin cleaning
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Valued Member
United States
277 Posts |
Just Carl, do you have any coin recipes? I'm thinking about having some Morgans with a side of Franklins for dinner!! Lol I love it!
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Bedrock of the Community
United States
20753 Posts |
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Posted Yesterday 11:35 pm
i am surprised Carl didnt mention the blow torch as he normally does for coin cleaning
NO, NO not a blow torch, a butane torch. Quote:
Just Carl, do you have any coin recipes? I'm thinking about having some Morgans with a side of Franklins for dinner! Lol I love it! Exactly why so many use Vinegar on coins for that salad taste. I normally use the Kansas State Quarters for a Bar-B-Que with a dash of the Wisconsin ones too. |
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Pillar of the Community
United States
3077 Posts |
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Pillar of the Community
United States
4085 Posts |
I saw this program yesterday with my son - I believe it was on the history channel.
The basic way it works - they use dry ice to create a stream of extremely cold air which shrinks the dirt particles which then lose their grip on the target article. Looked very effective for many things. I don't think it would work well on coins because although it might remove surface dirt, it is usually excessive toning that is the target of most cleanings. Since that is chemically bonded to the surface of the coin, I don't think it would be removed.
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Bedrock of the Community
United States
20753 Posts |
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The basic way it works - they use dry ice to create a stream of extremely cold air which shrinks the dirt particles which then lose their grip on the target article. Looked very effective for many things. So why not just use Liquid Nitrogen? Much colder. Now if this was true, imagine the ability for grownups to clean their kids when they come in full of mud, dirt, grease, etc. Why just one good blast of that and they are ready to sit down at the diner table for some tasty coins. And imagine the savings on car washes instead of water and soap. Ever see how some women waste time and money at beauty salons having their hair washed. Instead, blast their heads with that extreamely cold air and POOF, now cleaned. Quote:
mmmmm cheese The Wisconsin State Quarters show Corn on them. Oddly enough, not Cheese. Wonder why since they are sort of known as a Cheesey state. |
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Bedrock of the Community
United States
17884 Posts |
The differences in the rate of expansion and contraction and the extremes to which they will expand and contract results in the dirt and crud "popping loose" for the coin. Quote:The Wisconsin State Quarters show Corn on them. Oddly enough, not Cheese. Wonder why since they are sort of known as a Cheesey state. Better look again. There are three things on the Wisconson quarter, a cows head, and ear of corn, and a wheel of cheese. The ear of corn comes up from behind the cheese. |
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Rest in Peace
United States
9104 Posts |
Might be useful for a coin that has gum or paint on it.
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Valued Member
United States
268 Posts |
I haven't tried this, but was wondering about those hand held steam cleaners that you see on the info-commercials. How they would work on cleaning coins.
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Bedrock of the Community
United States
20753 Posts |
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I haven't tried this, but was wondering about those hand held steam cleaners that you see on the info-commercials. How they would work on cleaning coins. Not good since the steam could actually increase toning. However, as with cloths, it will get the creases out so when you wear your coins they will look nicely pressed. Quote:
Better look again. There are three things on the Wisconson quarter, a cows head, and ear of corn, and a wheel of cheese. The ear of corn comes up from behind the cheese. AHHH got me on that one. Shows you how much I like those State Quarters. No wonder those tasted funny. |
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Replies: 28 / Views: 8,453 |
Posted 02/19/2011 6:28 pm
