[Homeroast] Monday Morning Cup

raymanowen at gmail.com raymanowen at gmail.com
Wed Aug 25 03:40:12 CDT 2010


"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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