Re: How closely do you look at your beans??
Very 8-)
I reckon the 400 micron image would look great framed.
Juls
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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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Re: How closely do you look at your beans??
More amazing photos!
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!Originally posted by Thundergod link=1172492250/15#20 date=1172670206Im a bit worried about that first picture.
Those grinds dont look to be a consistant size.
... 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??
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??
Im a bit worried about that first picture.
Those grinds dont look to be a consistant size.
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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!
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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??
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??
Agreed,
Truly awesome photos BM
.... cant wait for the follow-ups,
Mal.
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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??
Im sure with some roasts that would be fine.... after all charcoal (carbon) is a good conductor ;D ;DOriginally posted by Beanmeister link=1172492250/0#13 date=1172536495Only 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??
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??
You can build your own Scanning-Tunneling Microscope: http://sxm4.uni-muenster.de/stm-en/ ;DOriginally posted by JavaB link=1172492250/0#10 date=1172534019(now where can I buy a good used -cheap - electron microscope)
Neat pics Beanmeister!
Java "Gotta love Science!" phile
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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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Re: How closely do you look at your beans??
This defines a new level of Coffee Snobbery...

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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