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Topic: Question for Mazzer users - grinding for espresso vs vac drip (14 msgs / 315 lines)
1) From: B. Scott Harroff
This is a multi-part message in MIME format.
The Mazzer users  know that the idea espresso grind vary by several "bumps
on the wheel" based on things the coffee itself, its age, ,maybe weather,
etc.  There are ten "bumps" or digits  between each number on the wheel, so
going from 0 to 2.5 for example would be 25 "bumps".  I'm guessing most
folks vary espresso grinds by link +/- .3 (3 bumps).  And, we know that most
Mazzers are not setup so that the "base" espresso grind is exactly at 0 on
the wheel (though I set mine up so that it was).  
 
How far from your "zero" for espresso do you move (in bumps / digits) to
grind for a vac pot or similar brewing method?   
 

2) From: raymanowen
Scott, I set mine to 19 above actual zero for espresso, 42 for TV drip and =
I
play with 65-95 for press- YMMV
I don't know how to reset the machine so that the actual zero matches the
burr clash point, etc.
-ro
On 4/23/06, B. Scott Harroff  wrote:
<Snip>
s
<Snip>
so
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t 0
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--
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the
Wichita WurliTzer

3) From: raymanowen
I changed terminology in my reply. My new burrs give a clash point of (-12)
on the ring, so the numbers I gave reflect that. My little E arrow is
pointing to 7, and D is on 30.
I still don't know how to reset the zero point. It's stable as is.
Cheers -RayO, aka Opa!
--
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Might=
y
Wichita WurliTzer- 1976

4) From: B. Scott Harroff
This is a multi-part message in MIME format.
If your espresso "zero point" is greater than zero on the wheel, you can
take a burr to a machinist and have them mill off the extra metal so that it
hits zero (easy to do).  If your espresso set point is below zero, you would
add a shim under one of the burrs.
 
This isn't really necessary, but if you are board and want a Mazzers with an
espresso "base point" at exactly zero, that's how you go about it.  
From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of
raymanowen
Sent: Sunday, April 23, 2006 12:02 PM
To: homeroast
Subject: Re: +Question for Mazzer users - grinding for espresso vs vac drip
I changed terminology in my reply. My new burrs give a clash point of (-12)
on the ring, so the numbers I gave reflect that. My little E arrow is
pointing to 7, and D is on 30.
I still don't know how to reset the zero point. It's stable as is. 
Cheers -RayO, aka Opa! 
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Mighty
Wichita WurliTzer- 1976

5) From: Geary Lyons
 Scott wrote:
<Snip>
take a burr to a machinist and have them mill off the extra metal   >so that
it hits zero (easy to do).  If your espresso  set  point is below zero, you
would add a shim under one of the burrs. This isn't
<Snip>
"base point"  at  exactly zero, that's how you go about it.
This, IMO, only makes sense if one considers the grind setting an absolute
value.  I do not think that it is. It is relative.  Mazzer sets the "base'
point in the factory, probably with old beans from Illy!?  The base point
would change relative to the beans used. Then probably only "right" for that
bean, roast, age, humidity combination at the moment the "absolute" was
determined.  Machining the burr the would be redundant to the huge range
already provided by the design.  One would have to be obsessively bored! ;-)
Using SM Monkey, Vienna, I am generally about .5 bump coarser than the
factory reference point. For Cafe Suisse, about 7 bumps coarser.  For drip,
FP or Chemex, I use the Baratza.
Cheers,
Geary

6) From: raymanowen
"If your espresso "zero point" is greater than zero..."
Hmmm- If you stop and think about it, you find the actual Zero Point (zero
burr clearance) by turning the adjustment nut- wheel- counter clockwise
until the burrs touch.
When they touch, you have passed one Zero, so you're below that zero and
could add shims to get back to it. Or, you still have a few degrees to go
before you pass zero again, and can hit the surface grinder to accomplish
that.
So, my burrs hit bottom at (-12) or (+88) below or above zero. I can either
shim it for 43.2 degrees CW, or grind it for 316.8 degrees CCW.
Door #3: Who Cares? Leave it alone. The beans couldn't care less-
Cheers -RayO, aka Opa!
--
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Might=
y
Wichita WurliTzer- 1976

7) From: Rich Adams

8) From: James House
Same here Rich, sorta.  Sticker is also at 9, but I go 3-5 notches *finer*
for shots, depending on the age of the beans.  I have not yet used my Mazze=
r
for Vac/Press yet but will pretty soon so thanks for indicating roughly
where you start yours at (1).  I'll start there when I get to that point.
James
On 4/24/06, Rich Adams  wrote:
<Snip>

9) From: Geary Lyons
This is a multi-part message in MIME format.

10) From: Rich Adams

11) From: B. Scott Harroff
This is a multi-part message in MIME format.
Ray,
Just checked mine based on the "clash" baseline.
Burrs clash (also) at -12.  
I grind espresso around 0
I was doing vac pot at 20.  I'll give a few runs at 30 a try.  
From: homeroast-admin
[mailto:homeroast-admin] On Behalf Of
raymanowen
Sent: Monday, April 24, 2006 12:43 AM
To: homeroast
Subject: Re: +Question for Mazzer users - grinding for espresso vs vac drip
"If your espresso "zero point" is greater than zero..."
Hmmm- If you stop and think about it, you find the actual Zero Point (zero
burr clearance) by turning the adjustment nut- wheel- counter clockwise
until the burrs touch. 
When they touch, you have passed one Zero, so you're below that zero and
could add shims to get back to it. Or, you still have a few degrees to go
before you pass zero again, and can hit the surface grinder to accomplish
that. 
So, my burrs hit bottom at (-12) or (+88) below or above zero. I can either
shim it for 43.2 degrees CW, or grind it for 316.8 degrees CCW.
Door #3: Who Cares? Leave it alone. The beans couldn't care less-
Cheers -RayO, aka Opa!
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Mighty
Wichita WurliTzer- 1976

12) From: raymanowen
Scott, the beauty of these burrs is that when they do touch, the cutting
surfaces are not involved. I've checked the zero point (clash) three times
so far.
Happily, it has stayed at (-12). It doesn't drift at all on the new burrs,
and at (-10) it cranked out coffee dust that had a little body. No real gri=
t
feel, but almost too heavy to float in the air. I'm going to give your
numbers a try- thanks
Due to the presence of Magnum static, the grind discharge pattern was wild.
I gotta get busy on the flyback or Tesla static neutralizer before I can tr=
y
a Turkish brew.
Cheers -RayO, aka Opa!
Can't wait to try Turkish

13) From: Aaron
just use a cyclonic seperator,  or centrifugal dust sticker to the walls 
er er  thingie......
instead of a flyback you could also use a car coil... Id say a Model T 
coil so you know what I am talking about, build an osc to run it, and 
that shold work too.  the wire has nuff insulation / resistance to keep 
you from being set on your ass too if it does arc.
aaron

14) From: raymanowen
"I'm going to give your numbers a try..."
I did so- set to 20, with a -12 zero point like Scott's. Thats 32 actual,
compared to my coarser 30 originally, = 42 actual.
I didn't want to make two changes at once, so I loaded 30g of beans in my
Mazzer Electric Baggage Handler (MEBH). I hadn't played with the math
anyway. With the actual particle size ratio being 42/32 or 1.3:1, and
calling the particles spheres rather than truncated trapezoidal pyramids, o=
r
crumbs- I knew there was a reason I didn't try the math. Pfltt!!
My calculator is scientific; noggin isn't. Oh, but the Yirg was even more
intense, complex and lingering! The 20 grind really slowed down the TV.
OK, I did make two changes simultuously. My daughter gave Brianna  of
my Yirg, and I left the MEBH set to 20 to grind 30g of Bolivian organic
Cenaproc peaberry that's in day 14. I don't know how that day 14 happened. =
I
guess I got hung up on the Yirg but Sarah fixed that.
Nash used to build a car named after me- the Rambler. Sorry. Stop reading
any time.
Cheers -RayO, aka Opa!
--
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Might=
y
Wichita WurliTzer- 1976


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