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Thread: How closely do you look at your beans??

  1. #1
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    How closely do you look at your beans??

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    I finally got around to putting some green and roasted beans into the microscope. They are cross sections (i.e. bean broken in half lengthwise) of Indian Tiger Mountain roasted in a popper...

    Unroasted (width of image about 80 microns)


    Roasted (width of image about 1.5 mm)


    Roasted (width of image about 2.5 mm)


    Roasted (width of image about 2 mm)

  2. #2
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    Re: How closely do you look at your beans??

    Amazing photos :o

    Do you have one of the roasted bean at 80 microns [smiley=huh.gif]

  3. #3
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    Re: How closely do you look at your beans??

    interesting photos there. how did u get these photos off a microscope...hooked up to a computer?

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    Re: How closely do you look at your beans??

    No higher mag of the roasted yet, just a quick look after work so havent put it through all the paces yet...

    The microscope is of the scanning electron variety so its pretty standard to get digital images (although in the old days they did used to take photos of the screen to get their images out!)...

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    Re: How closely do you look at your beans??

    They are really cool photos, you could mount the bottom one and hang it over your coffee area. :)

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    Re: How closely do you look at your beans??

    Could be the future of Coffee Snobbing. Everyone will have electron microscopes and be scrutinizing their grind size down to the nearest micron! ... I think the first picture shows the beans structure to be a bit too rough or "cabbage-like", rather than the preferred "waffle" pattern produced by superior coffee DNA.

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    Re: How closely do you look at your beans??

    Can anyone else see the face of a man in the bottom left corner?

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    Re: How closely do you look at your beans??

    Quote Originally Posted by Presso link=1172492250/0#6 date=1172517917
    Can anyone else see the face of a man in the bottom left corner?
    Sorry to disagree -- its definitely the face of ET. *Or a bears paw.

    Maybe after a few espressos it will become more clear.

    Seriously, though, very impressive pix Beanmeister.

    --Robusto

  9. #9
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    Re: How closely do you look at your beans??

    Actually, I think its Jesus. Quick, sell it on e**y.

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    Re: How closely do you look at your beans??

    MMMMMmm scanning electron goodness. . .

    I always seemed to be scanning spores - not as much fun as scanning beans.

    You should scan a pre-extracted grain of coffee and a post-extraction grain of coffee next!

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    Re: How closely do you look at your beans??

    This defines a new level of Coffee Snobbery... :o :o

    Checking out roast beans with an electron microscope!!!

    And I thought I was over the top with all my techo toys!!

    Great shots by the way!!!-

    (now where can I buy a good used -cheap - electron microscope) ;)

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    Re: How closely do you look at your beans??

    Hmmm, the words cheap and electron microscope dont really occur together very often!! I will get around to ground coffee images at some stage, at least the particles are small enough so that a whole one should fit into the field of view - beans are way too big when you can only see a couple of millimetres of them at a time...

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    Super Moderator Javaphile's Avatar
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    Re: How closely do you look at your beans??

    Quote Originally Posted by JavaB link=1172492250/0#10 date=1172534019
    (now where can I buy a good used -cheap - electron microscope) ;)
    You can build your own Scanning-Tunneling Microscope: http://sxm4.uni-muenster.de/stm-en/ ;D

    Neat pics Beanmeister!


    Java "Gotta love Science!" phile

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    Re: How closely do you look at your beans??

    Only problem is that the beans would have to be conductive for STM... [Homer]Mmmm, metallic coffee...[/Homer] I could try and use the STM here but the beans would be a bit rough (and insulating)...

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    Re: How closely do you look at your beans??

    Quote Originally Posted by Beanmeister link=1172492250/0#13 date=1172536495
    Only problem is that the beans would have to be conductive for STM... [Homer]Mmmm, metallic coffee...[/Homer] I could try and use the STM here but the beans would be a bit rough (and insulating)...
    Im sure with some roasts that would be fine.... after all charcoal (carbon) is a good conductor ;D ;D

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    Re: How closely do you look at your beans??

    Pretty awesome! Any chance of you taking some photos of ground coffee for us?

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    Re: How closely do you look at your beans??

    Agreed,

    Truly awesome photos BM :o.... cant wait for the follow-ups,

    Mal.

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    Senior Member smoky's Avatar
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    Re: How closely do you look at your beans??

    Wow BM, very interesting images, have to agree with Mal, cant wait for more.......... 8-)

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    Re: How closely do you look at your beans??

    I like them too, maybe you can scan them into Photoshop, filter with some different colours, and sell them as Cool Art decos for Coffee Shop walls.

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    Re: How closely do you look at your beans??

    OK, next installment - Indian Tiger Mountain ground in the Mazzer Mini...

    Low mag (width of image 1.75 mm)


    Higher mag of grain showing cell structure (width of image 400 microns)


    Grains of coffee and a piece of ground chaff (width of image 800 microns)


    Long grain of coffee (width of image 800 microns)


    Enjoy! :D

  21. #21
    Sleep is overrated Thundergod's Avatar
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    Re: How closely do you look at your beans??

    Im a bit worried about that first picture.
    Those grinds dont look to be a consistant size.

  22. #22
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    Re: How closely do you look at your beans??

    Does it matter? It allows a few fines to get in to the cup...which is a good thing is it not? After all, many good shots show flecking

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    Re: How closely do you look at your beans??

    More amazing photos!

    Quote Originally Posted by Thundergod link=1172492250/15#20 date=1172670206
    Im a bit worried about that first picture.
    Those grinds dont look to be a consistant size.
    Theyre not supposed to be a consistent size; theyre just supposed to have a repeatable distribution across the spectrum without generating too much dust. Im sure that you could google up some graphs showing particle size distribution if you wanted to. Too many fines are a bad thing, but an array of particle sizes will actually pack better. Think about it; with regular sized particles, the interstitial spaces would be larger. With a variety of particle sizes, some of the interstitial spaces will be plugged with smaller grounds. Or at least thats the theory that I have heard!

    ... not that were anal enough to try to use a scanning electron microsope to explain what ends up in the cup or anything ;P

    Cheers,

    Luca

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    Re: How closely do you look at your beans??

    I think it would be near impossible to get an even size distribution as the hardness differs throughout the bean. If you try to break a roasted bean in your hands, youll find that some bits break up more easily than others...

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    Senior Member julsajet's Avatar
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    Re: How closely do you look at your beans??

    Behmor Brazen - $249 - Free Freight
    Very 8-)

    I reckon the 400 micron image would look great framed.

    Juls



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