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  • Mould or bloom?

    At the risk of looking like I'm trying to pimp my own blog, I'd like to draw your attention to my latest blog post.

    It seems to be quite a common question on cigar forums asking if it is mould or bloom on their cigars, with seemingly no definitive way of telling. That said, on Trevor's cubancigarwebsite it is mentioned that UV light can be used. This is the only place I can find it on the web, apart from places that refer to that. I think this is quite a major piece of info that gets overlooked way too much, so to corroborate it, I decided to have a play.



    This is a photo of some October 2007 PLPCs under UV light (365 nm). The even spread of the sparkles indicates to me that it is the beginnings of bloom, as mould tends to cluster. The reason you can only see a small region of them is the UV light is quite directional and not very bright.

    I have also put a FdC Preferidos in a sealed plastic bag with some wet bog roll to try and get it to mould. I will then test it with the UV light to check whether the mould doesn't also fluoresce.



    Further details to come. It shouldn't be too long going on my experience with mould.

    Hope someone finds this useful or interesting.

  • #2
    Good stuff!
    Originally posted by Simon Bolivar
    Little medical correction there Steve, you will surely die...but not from smoking these

    Originally posted by Ryan
    I think that's for lighting electronic cigarettes

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    • #3
      Great stuff Dave...

      Looking forward to the results...

      Cheers, HabanoSy

      Comment


      • #4
        Aha!
        Another "critical thinker".
        I'm always a fan of someone who does his due diligence and takes some data before making an "educated guess". I'll be interested in your results.

        Another thing to investigate:
        Since "bloom" provides a great medium to support mould, and it's common to see a light mould developing on what was "bloom" when it was dry, I'm guessing that the mould will also show blue under UV. If you have access to a microscope, it's quite educational to look at both "bloom" and mould under moderate magnification.
        Commander Bob

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        • #5
          ive heard of uv phenomena on mold vs. bloom but this is the first visual aid ive seen. thanks for the pictures and your time on this... i look forward to the final results.

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          • #6
            I too am interested to see where this leads to. Will be good to know for future referance. Keep up the good work!
            sigpicFor Gallantry

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            • #7
              Yeah this is great stuff dave!

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              • #8
                Thanks folks! Glad someone else is finding my experiments useful.
                Originally posted by cbob View Post
                Another thing to investigate:
                Since "bloom" provides a great medium to support mould, and it's common to see a light mould developing on what was "bloom" when it was dry, I'm guessing that the mould will also show blue under UV. If you have access to a microscope, it's quite educational to look at both "bloom" and mould under moderate magnification.
                Now you say that, I realise I should have tested the Preferidos with the UV light before I put it in the bag!
                Thanks for pointing this out-I shall sacrifice another but test it first. They are from December 1998 so they may well have the odd crystal or two of bloom. Then again, there's none visible...

                I'll see what I can do about a microscope. I've got a pocket microscope and a jeweller's loupe, so perhaps I could cobble something together with my digital camera or a webcam.

                Thanks for the input!

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                • #9
                  UV

                  Interesting photographs Dave. Thanks for the info.
                  "Keep your eyes peeled, your arse up, head down, and your ear to the gound" WHISKY77

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                  • #10
                    We've got our own little science lab going on!

                    Good work, Dave.
                    Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote.

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                    • #11
                      Really cool things to know!!!!

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                      • #12
                        Good stuff Dave.

                        Given what you're doing, maybe one of these might come in useful?

                        Welcome to our blog about electronic tools and kits! Browse through the product reviews, read the expert advice, and have fun with us. Get the best info!
                        If you want to, you can.
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                        • #13
                          christ soon it'll be all agar jelly and bunson burners, and then the pippets and acid will come out and there'll be havoc in the classroom!!

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                          • #14
                            wow science at school was never this cool, if it was i might have gone to more than three lessons

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                            • #15
                              Oooo, a science experiment, great thinking.

                              Can't wait to see the results either!

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