Coffee w/Silver coin, 2-Week experiment.
joeykoins
Posts: 17,873 ✭✭✭✭✭
Hi guys,
While making my coffee this morning, I had a notion???
What a Silver Kennedy would look like, sitting in a bag of some unused coffee grounds, after a certain period of time?
Just curious?
See ya in 2 weeks, for any changes.
Thanks
"Jesus died for you and for me, Thank you,Jesus"!!!
--- If it should happen I die and leave this world and you want to remember me. Please only remember my opening Sig Line.1
Comments
Or, wrap one in the cheapest, hardest, and most abrasive toilet paper you can find. Then put it into a a slice in a monster baking potato. Let it sit in the oven for several hours at around 350. That was my favorite experiment back in the day.
Having fun while switching things up and focusing on a next level PCGS slabbed 1950+ type set, while still looking for great examples for the 7070.
It's been 2 weeks already???
I'd not even have my first cup of coffee yet!
Cont'd...
"Jesus died for you and for me, Thank you,Jesus"!!!
--- If it should happen I die and leave this world and you want to remember me. Please only remember my opening Sig Line.Well,
No Change.
As for now?
Maybe, in time?
I left some residue on it.
Packed it away.
Thank you ALL!
Here's to ya!
"Jesus died for you and for me, Thank you,Jesus"!!!
--- If it should happen I die and leave this world and you want to remember me. Please only remember my opening Sig Line.Try placing the coin into a cup of coffee and let it sit overnight. Coffee is an acidic solution so it will probably react with the surface.
Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 )
acid sounds like a bad idea
Sulfur is the primary causal agent of silver tarnish, or toning. Coffee and coffee grounds do normally contain some sulfur - up to 1% sulfur, depending on the variety of coffee used. So in theory, being sealed up in a bag of coffee grounds ought to tarnish up a silver coin faster than a silver coin just left in open air.
How fast the process happens, would depend on the precise chemical nature of the coffee in question - in what form is the sulfur? Many sulfur-containing compounds are volatile (they evaporate and get into the air easily), but some are not. Alkylpyrazines, a class of volatile chemicals which contribute the most to the distinctive "coffee smell", do not contain sulfur, so it's quite possible for something to "smell like coffee" and yet not effectively tarnish a silver coin.
Roman emperor Marcus Aurelius, "Meditations"
Apparently I have been awarded the DPOTD twice.
wouldn't a sealed bag of coffee deprive it of good oxygen flow?
You don't need oxygen to tarnish silver; silver oxide does not readily form under normal circumstances. What you do need is some source of sulfur, as silver sulfide forms readily. Silver is actually pretty good at scavenging sulfur out of any environment.
Roman emperor Marcus Aurelius, "Meditations"
Apparently I have been awarded the DPOTD twice.
methionine and heat?
That would probably work. Methionine itself isn't volatile but breaks down and releases the sulfur when heated. There's not a lot of methionine in typical coffees though.
Roman emperor Marcus Aurelius, "Meditations"
Apparently I have been awarded the DPOTD twice.