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Topic: sticky pucks (7 msgs / 200 lines)
1) From: Clifton Burkett
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Last batch of decaff I roasted I am getting sticky pucks.  i.e. you  
take the portafilter handle out and the puck is still stuck to the  
screen.  I switched to another roast and it is not doing it. Not  
really much of a problem, a bump from the brew handle and it fall  
right off. Sort of weird. Not overfilling the portafilter handle or  
anything obvious like that. Pull is ok, shot taste is ok.  just  
sticky pucks?
Clif - SomeWhere in Florida
with Rocky the Cardi and Garfield the Tabby
Odie PWC at the Bridge 01/18/2006http://www.freewebs.com/aesk/inmemoriam.htm--Apple-Mail-19-418248574
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Last batch of decaff I = roasted I am getting sticky pucks.  i.e. you take the portafilter = handle out and the puck is still stuck to the screen.  I switched to = another roast and it is not doing it. Not really much of a problem, a = bump from the brew handle and it fall right off. Sort of weird. Not = overfilling the portafilter handle or anything obvious like that. Pull = is ok, shot taste is ok.  just sticky pucks?
Clif - SomeWhere in Floridawith Rocky the Cardi and Garfield the = TabbyOdie PWC at the = Bridge 01/18/2006
">http://www.freewebs.com/aesk/inmemoriam.htm=="=" class="3D"khtml-block-placeholder"">
= --Apple-Mail-19-418248574--

2) From: Barry Luterman
This is a multi-part message in MIME format.
I've had that happen to me when I under fill the PF. If I tamp then =
decide I need more coffee so I add coffee and then tamp again so that =
there are 2 pucks in the PF it will stick to the screen. ----- Original =
Message ----- 
  From: Clifton Burkett 
  To: Sweet Maria's - Homeroast List 
  Sent: Saturday, March 17, 2007 5:47 AM
  Subject: +sticky pucks
  Last batch of decaff I roasted I am getting sticky pucks.  i.e. you =
take the portafilter handle out and the puck is still stuck to the =
screen.  I switched to another roast and it is not doing it. Not really =
much of a problem, a bump from the brew handle and it fall right off. =
Sort of weird. Not overfilling the portafilter handle or anything =
obvious like that. Pull is ok, shot taste is ok.  just sticky pucks?
  Clif - SomeWhere in Florida
  with Rocky the Cardi and Garfield the Tabby
  Odie PWC at the Bridge 01/18/2006
 http://www.freewebs.com/aesk/inmemoriam.htm

3) From: MichaelB
Clif,
A sure sign of updosing (using more than the ideal dose) is that when the
puck swells it reaches the portafilter and is constricted by it from
expanding further. And sometimes it sticks.
There's a paradox involved with dosing. The more grinds you use the less
solutes you extract per dose. So the bigger doses may actually contain less
solutes and less body and mouthfeel than shots with less grinds.
Try using less grinds and see if you don't notice a change in shot quality.
I use 15% less grinds per shot than I used to and IMO my espresso is richer
and tastier than it used to be. And if there is no other difference, at
least you will prevent the puck sticking and save on coffee.
On 3/17/07, Clifton Burkett  wrote:
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--
MichaelB

4) From: Carole Zatz
A secondary question: If I use less grinds do I then have to grind
finer to stay at around 25 sec of pour time that I'm now getting?
On 3/17/07, MichaelB  wrote:
<Snip>

5) From: MichaelB
Carole,
Yes! You're typically aiming for a golden rule shot of about 2 oz in 25 sec,
and over time finding what variation on that starting point works best for
your machine and your coffee. So all other things being equal, the lesser
dose would require a finer grind to achieve the same output.
The other thing to look for when optimizing dose is blonding. No matter
what, always stop the shot at the first sign of blonding. If you're not
happy with the volume you are getting, that's the time to consider varying
your dose and grind accordingly. FWIW, over time my shots have decreased in
volume but increased in taste. Arguably, it's easier to raise the quality of
shorter shots than longer ones.
On 3/17/07, Carole Zatz  wrote:
<Snip>
--
MichaelB

6) From: Michael Dhabolt
Jim Schulman has written a paper on dosing (he tends toward down-dosing as
MichaelB comments on).  One of the threads that explores his theories is athttp://www.home-barista.com/forums/a-paper-on-espresso-extraction-t3294.html.
Very interesting reading.  I've recently started leveling my PF prior to
tamping using the minis doser cover held at about a 45 degree
angle.....scoops some extra grounds out of the previously leveled PF.
Again, as MichaelBs comments indicate, this is a subtle technique that is
certainly worth exploring.
Mike (just plain)

7) From:
Clif:
Hi there. I don't care what anyone says but decaf is strange. I am not surprised you got smelly pucks from decaf.
gin
---- Clifton Burkett  wrote: 
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