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Old 10-26-2012, 05:57 PM   #1
BrewChem
 
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Took some pix of hops a few weeks ago... here are some up-close images of dried yeast. Look sorta like Tic-Tacs...






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Old 10-26-2012, 06:21 PM   #2
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Awesome! Thanks.
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Old 10-26-2012, 06:36 PM   #3
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Awesome! Is the sheen just some condensation from coming out of the fridge, some effect from your scope lighting, or just how the yeast looks?
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Old 10-26-2012, 06:43 PM   #4
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I'm not sure about the sheen... they were room temperature when I took these pix. There also appears to be small, semi-translucent globules here and there on the surface. Maybe they're coated with something to help keep them together. Anyway... if I can, I'll put up some electron-microscope pix later. Love working in a science lab..!

 
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Old 10-26-2012, 06:55 PM   #5
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mmm...tick tacks...
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Old 10-26-2012, 06:57 PM   #6
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Maybe the sheen is the emulsifier? Tell us about your microscope. I've got one that would never do this well.

 
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Old 10-26-2012, 08:37 PM   #7
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I'll bet it's the emulsifier- hadn't thought of that.
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Old 10-26-2012, 09:18 PM   #8
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very cool...thanks for posting

 
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Old 10-26-2012, 09:20 PM   #9
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Now for some really cool pix.... I took these with a scanning electron microscope of the same sample of dried yeast.... little beasties lying in wait for a sweet wort...!

30x Magnification


100x Magnification


500x Magnification


2,000x Magnification


4,500x Magnification

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Old 10-26-2012, 09:25 PM   #10
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Fantastic. Used to love getting extra time on the SEM when I was working in the lab. Neat pics!
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