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  1. #21

    Re: Lead testing in bourbon, step by step

    Quote Originally Posted by MauiSon View Post
    Very interesting, but I wonder about the solids. What are the detection parameters on your equipment?
    I have been racking my brain to figure out what was in the bottom of the centrifuge tubes. My biggest guess would be something to do with tannins but the odd part was the newer bourbon had about half the solids..

    The lowest calibration standard we use is 5ppb so that is what is known as our PQL or practical quantificatation limit.. the actual detection limit of the machine is much lower than that but is not really relevant as compared to the drinking water limit.

  2. #22
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    Lead testing in bourbon, step by step

    This is really interesting, Mike. Definitely would be cool to see more decanters/other old whiskies tested to see what trends you would discover.
    Jim

  3. #23
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    Re: Lead testing in bourbon, step by step

    Thanks for sharing, Mike! A great experiment to be sure!

  4. #24
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    Re: Lead testing in bourbon, step by step

    Quote Originally Posted by michaelturtle1 View Post
    I have been racking my brain to figure out what was in the bottom of the centrifuge tubes. My biggest guess would be something to do with tannins but the odd part was the newer bourbon had about half the solids..

    The lowest calibration standard we use is 5ppb so that is what is known as our PQL or practical quantificatation limit.. the actual detection limit of the machine is much lower than that but is not really relevant as compared to the drinking water limit.
    Mike, I strained the Weller through a "natural" coffee filter to remove some of the small pieces of cork that fell in when it broke.
    Last edited by smknjoe; 08-09-2013 at 17:29.
    Insert TheNovaMan's signature here (___________)

  5. #25
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    Lead testing in bourbon, step by step

    Wow. Just fantastic work. Can't wait for more testing. Great job!!

  6. #26
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    Re: Lead testing in bourbon, step by step

    Pretty cool. Thanks for sharing this.

  7. #27
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    Re: Lead testing in bourbon, step by step

    Very cool experiment! The samples tested lower than I thought they would. It's really interesting that different old fitz from the same era tested so different. Those old decanters are pretty unpredictable.

  8. #28
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    Re: Lead testing in bourbon, step by step

    That seems to be the biggest takeaway. Ya just don't know.

  9. #29
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    Re: Lead testing in bourbon, step by step

    Thanks for doing the heavy lifting here Michael, looks like we're safe so long as we don't add any of that 15ppb water.
    We're Bourbon Geeks, it's who we are, it's what we do.

  10. #30
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    Re: Lead testing in bourbon, step by step

    I could send you two WT samples from porcelain decanters from 80 and 82.

    the results you posted are crazy as prior info talked about WT ceramics were supposed to be worse then the porcelains.

 

 

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