The Dangers of Olive Oil for preserving finds

[Rydog]

https://finds.org.uk/counties/merseyside/the-dangers-of-olive-oil/

 

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[ironhorse]

This isn't new news at all, but it's a good reminder to new detectorists that wish to become collectors.
Find preservation or restoration with olive is the funniest thing I've heard all day ; the olive oil only makes it taste better!

 

[hvacker]

Illumin - A Chemical Engineer's Guide to Cleaning Just About Anything

I haven't had a chance to look into this deep but it's not olive oil. Olive oil comes up often on the Cleaning and Preservation forum.
I don't know why. Most cleaning solutions on the forum are largely opinion w/o a professional analysis. If the thing gets shiny it must be good.
BTW my understanding is Italy is dumping below grade olive oil an the American market because Americans don't know any better. What's called Extra Virgin, isn't. The Italians keep the good stuff for themselves. A report on this was featured on TV but I don't remember if it was 60 minutes or not.
I've done taste tests on what I buy and the difference is evident. Don't go by fancy bottles or price. They are often the worse. Sometimes awful.
I still haven't settled on one best brand yet. At the prices I go slowly. Hard to beat peanut for all around uses.

 

[treasuresalvor]

Illumin - A Chemical Engineer's Guide to Cleaning Just About Anything

I haven't had a chance to look into this deep but it's not olive oil. Olive oil comes up often on the Cleaning and Preservation forum.
I don't know why. Most cleaning solutions on the forum are largely opinion w/o a professional analysis. If the thing gets shiny it must be good.
BTW my understanding is Italy is dumping below grade olive oil an the American market because Americans don't know any better. What's called Extra Virgin, isn't. The Italians keep the good stuff for themselves. A report on this was featured on TV but I don't remember if it was 60 minutes or not.
I've done taste tests on what I buy and the difference is evident. Don't go by fancy bottles or price. They are often the worse. Sometimes awful.
I still haven't settled on one best brand yet. At the prices I go slowly. Hard to beat peanut for all around uses.

I saw that too, way low grade olive oil and some wasn't even olive oil at all. That included many name brands. We only use avocado oil now, for eating, I don't oil coins.

 

[sprailroad]

I did not know this, Thank you for sharing it. Always something to be learned from members on this Forum.

 

[Dug]

Thanks Rydog, I'm saving this link for future use. I fell into the olive oil trap by reading a post about how it removes crud from brass buttons. I ended up with a black button as a result and was not able to reverse the darkening. Lesson learned the hard way.

I suspect that many folks have never tried the olive oil treatment but only pass the recommendation on because that is what they read in other posts. The most frequent ones I see are soaking crudded copper coins in olive oil.

If enough of us counter these incorrect recommendations we might have a chance of putting an old wives tale to bed.

Wonder if we can get an administrator to look at the link and consider making it a sticky in the cleaning and preservation forum?

 

[fistfulladirt]

I took awhile for me to learn my lesson with olive oil, finally got it through my thick skull when I ruined an absolutely gorgeous AU 2-cent piece that I had dug. I could not reverse the darkening that the oil caused.

 

[Honest Samuel]

Be careful using this type of oil. Good hunting and good luck.

 

[against the wind]

Illumin - A Chemical Engineer's Guide to Cleaning Just About Anything


BTW my understanding is Italy is dumping below grade olive oil an the American market because Americans don't know any better. What's called Extra Virgin, isn't. The Italians keep the good stuff for themselves. A report on this was featured on TV but I don't remember if it was 60 minutes or not.

Thanks for the information. I use Extra Virgin Olive Oil.
I have noticed the difference in taste lately. My coin salad just ain't the same. Maybe I shouldn't clean the coins before tossing them into the salad,, lol

 

[JimJ]

Thank you the information! Yep I used it on a couple of coins last year and couldn't understand why it did not live up to what some folks said was good advise! Luckily for me they were not worth anything but to me.