jbviau Senior Member Joined: 12 Jul 2010 Posts: 736 Location: Pembroke Pines, FL Expertise: I love coffee
Grinder: Preciso / LIDOs Drip: Trifecta MB / Eva Solo...
Posted Wed Nov 14, 2012, 7:56am Subject: Re: Grinder Assessment Using Sieves
This should be fun. I have a Fisher 850-micron sieve, too--wrote about it here a while back (with pics).
I think that 30 seconds isn't enough vibration. I think on MPE Chicago's site, they mention requiring a 5-minute vibration. Just shaking 5g samples until the resulting amount in the pan stabilized took several minutes.
Did you really achieve "stabilization," as you said? In my limited experience sieving I found that the more I shook the more coffee passed through the sieve (hence the need for a more consistent method of agitation), but then again I never went at it for more than a minute.
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