HomeRoast Digest


Topic: Lack of grind repeatability with Solis Maestro (4 msgs / 91 lines)
1) From: Mark Neuhausen
I have a recently purchased Maestro.  I change the grind settings to get the
correct extraction times for coffee crema and espresso.  I have noticed that
the Maestro grind is only reproducible to within one click of the original
setting when I return to espresso grind or crema grind.  Has anyone else
experienced this lack of repeatability?
The coffeekid was quite impressed that every Mazzer Mini grinds at the same
number for a consistent espresso grind.  The Rocky appears to have
variability from machine to machine, but repeatability for the same machine.
Is this true?
Since I drink different types of coffee and also sometimes grind for friends
for drip makers or french presses, my replacement grinder will need
repeatability.  I have started my grinder fund.
-Mark
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2) From: jim gundlach
Mark,
   The lack of repeatability in the Solis is due to the weak plastic 
base that holds the burrs.
   I can only speak for my Rocky, but it is quite reliable at producing 
the same grind at a setting after shifting back and forth between 
settings but from conversations I've had with others, a six on one 
Rocky is not likely to be the same as a six on another Rocky, although 
they are not likely to be off more than a couple of notches.
Jim Gundlach
On Wednesday, January 1, 2003, at 08:22 AM, Mark Neuhausen wrote:
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3) From: Bart Frazzee
On Wed, 1 Jan 2003 09:22:35 -0500, you wrote:
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 the
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that
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original
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Any mechanical linkage has some slop. If you start at 0 and move it to
3 it will not be the same as starting at 6 and moving to 3. You should
always approch your setting from the same direction, ie: from coarser
to finer, oe finer to coarser. Might help.
Bart
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same
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machine.
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friends
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4) From: john kangas
<Snip>
Yep, it just seemed to wander, even with always seting the grind from the 
same direction, shims, etc. It did narrow down to half a click, except for 
that beach trip to Lincoln City, the espresso grind moved 3 (!) clicks.
<Snip>
I'm seeing the same thing with my beat up old relic of a super jolly, with 
dull burrs. The grind's between 1 and 3 of the little ridges on the 
perimiter of the adjustment ring finer than the mark. That's for an SL-70, 
which does use a smaller portafilter basket. I've noticed that the grind 
seems finer than the Maestro's, and that a consistent tamp is much more 
important. The grind varies for different coffees, coarser for Yemen, for 
example, (denser beans?) than others. It's a small adjustment, but it's 
enough to either choke the machine, or produce a Cafe Crema. (oh, shucks ;-) 
It's not hard to do, what works for me is to grind finer if the beans appear 
larger or well tended, like Central American. Coarser if it's a small bean, 
or looks more like it was grown and processed almost by accident, like Yemen 
Raimy. (darn good stuff, in any case!) After one month's experience, (with 
this grinder) a quick guess gets a shot in 22-30 seconds 9 times out of 10.
John
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