[Homeroast] Monday Morning Cup

Rich rich-mail at octoxol.com
Wed Aug 25 12:40:32 CDT 2010


It is very simple.  Sift out the fines and use whatever grinder you like.

Doug Hoople wrote:
> I don't have a clue what you're actually getting at here, RayO, but that's
> nothing new. You're often getting at not much, almost always entertainingly,
> though.
> 
> A year ago, when I was experiencing regular drawdown delays and stalls in my
> Yama vacpots with a Cory rod, Barry suggested that the answer to the problem
> was, in his words, "Grinder, Grinder, Grinder," a mantra we hear around here
> a lot.
> 
> Turns out that assertion was wrong in two ways, 1) that the problem would go
> away with the introduction of a great grinder, and 2) that there was no
> other way of addressing the problem.
> 
> Barry ran a short, but relatively conclusive, test that indicated coarsely
> ground dark roast coffee from either a Mazzer Mini or a Cimbali Max Hybrid
> still caused drawdown delays in a Yama vacpot with a Cory rod.
> 
> That's not to say that the problem wasn't lessened by the introduction of a
> "great" grinder, only that it wasn't solved outright.
> 
> In the meantime, using the terminal heat burst method, I was able to take
> the output of the Baratza Virtuoso, a "good" grinder (longevity relative to
> the Mazzer tanks notwithstanding), and make the problem go away entirely,
> using any grind level and any level of darkness of roast.
> 
> Now it could be argued that neither the Mazzer Mini nor the Cimbali Max
> Hybrid are "great" grinders, but you're starting to really split hairs at
> that point. And who wants to sign up for a Robur or a Ditting in the hopes
> that "grinder, grinder, grinder" is the whole answer, especially if the
> answer is actually "not really."
> 
> Was my research exhaustive? No. Could it actually be called research? Under
> the tightest definitions, no.
> 
> But do I have enough information to demonstrate conclusively that I don't
> need a $3000 grinder or a kitchen-reducing tank in order to get my glass-rod
> vacpot to behave properly? Absolutely.
> 
> So put that in your Super Jolly and grind it, RayO. :)
> 
> Doug
> 
> On Wed, Aug 25, 2010 at 8:40 PM, <raymanowen at gmail.com> wrote:
> 
>> "A great grinder wasn't going to solve the problem, and you helped me to
>> prove that." [The research was a farce if you already knew the answer.]
>>
>> "Doesn't mean that a lousy grinder wouldn't confound the problem, just that
>> a
>> great grinder wasn't going to fix it."
>>
>> Congratulations! You proved a negative. Does your proof hold in every case,
>> or only in the case of Great Grinders from Grinders-R-Us, that you can hold
>> at arm's length in one hand?
>>
>> Maybe you proved that 2 different POS grinders are identically bad, so you
>> can't detect the difference between them.
>>
>> When two grinders both make grounds with with wild size and shape
>> variation,
>> neither has control of the particulate size, and the operator has no
>> control
>> over the brewing characteristic of grounds that resemble Martian surface
>> rubble.
>>
>> Different size coffee particles brew and extract differently. Otherwise why
>> make small pieces out of the fairly uniform-sized beans in the first place,
>> and why make the grinders adjustable at all??
>>
>> The one statement that would answer both questions is ludicrous. If you
>> need
>> size variation in a particular brewing method or it doesn't make any
>> difference, you're sitting in the rong pew.
>>
>> Blade grinders generate the exact rubble you seek and they preheat the
>> grounds at no additional charge. When viewed with an inspection loupe, even
>> the grind from new Mazzer burrs is seen to vary by as much as 10:1
>>
>> The particle volume variation is 1,000:1. (r³ and all) If that doesn't make
>> any difference, *$ has your coffee. Helluva note! Happily, there aren't
>> many
>> fines from the new burrs. The old [new] burrs lasted 5 years before they
>> started making fines, even though they felt very sharp. ¿Maybe grinding
>> bread flour wrecked them? No more of that, but it worked.
>>
>> If a different brew requires a different grind size, then proper brewing
>> can't possibly use the variable rubble size of most grinders. Of course, if
>> you like stalled brews in vacuum pots, don't change a thing. Keep doing
>> what
>> you've done and you'll keep getting what you got.
>>
>> Cheers, Mabuhay -RayO, aka Opa!
>>
>> Got grinder?
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