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slimy wet puck, help?
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Ccup
Senior Member
Ccup
Joined: 13 Feb 2009
Posts: 166
Location: australia
Expertise: I live coffee

Espresso: rancilio silvia
Grinder: rancilio rocky
Drip: na
Roaster: Behmor 1600
Posted Wed Oct 20, 2010, 7:06pm
Subject: slimy wet puck, help?
 

hello everyone.
I have the latest model of the rancilio silvia.
i also use the doseless rocky to grind my beans.

I have four basket two are single and two are double. both are varied in how much coffee they can contain.

I use the largest single basket for the single portafilter and the large basket for the double.

The problem i am having since day one is, there is a puddle on top of the puck. This is there after i have frothed the millk and made a drink.

The puck is also slimy
and when i knock it out slimy coffee grinds are all over the basket.

I have coarsened grind, dosed, tamped the basket at different pressures and levels.
I have Tightened my grind, dosed, tamped at different levels and pressures.

I can achieve a nice tasting coffee
i just wanna be able to have a dry puck at the end of the whole ordeal

could anyone help me achieve a dry burnt puck that knock out whole.

thank you so much!

 
"A good cup of coffee starts with a seedling."
Snaggle.

www.snagssharkteeth.com
http://stores.ebay.com.au/Snaggles-Shark-Teeth
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Zimberto
Senior Member


Joined: 19 Sep 2007
Posts: 91
Location: Pacific Northwest
Expertise: I love coffee

Espresso: Quick Mill Silvano
Grinder: Barista Vario
Roaster: Zack & Dani's
Posted Wed Oct 20, 2010, 7:12pm
Subject: Re: slimy wet puck, help?
 

You need a finer grind or/and more pressure when you tamp. How long does it take to pull your shots? I'm betting it's a lot less than 25 seconds.
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IMAWriter
Senior Member
IMAWriter
Joined: 4 Jul 2002
Posts: 5,689
Location: Brentwood, TN
Expertise: I live coffee

Espresso: Bezzera Strega
Grinder: Forte, Preciso/Esatto, KyM...
Vac Pot: Adcraft SS, Yama 8 cup
Drip: Brazen, Kalita, Chemex,...
Roaster: Behmor 1600, CO/UFO combo
Posted Wed Oct 20, 2010, 8:54pm
Subject: Re: slimy wet puck, help?
 

Wet pucks can be caused by several things: too fine a grind, too cool temperatures, overfilled baskets, too hard a tamp...
I've heard that pucks on the older Silvias could sometimes be a little damp.

Try to keep some of your technique const. For instance, use a 30# tamp always, regardless of how fine or coarse you grind.
Is your coffee fresh?
Stale coffee is not a great way to go, producing thin watery shots, and subsequent sloppy pucks.
Is your machine the one that is PID'd?

If you're having to temp surf, make sure your machine has been warmed up at least 30 minutes, and you might want to flush the group a few times as well.
Not owning your machine, not having first hand experience, other posters might be more helpful.

 
Rob J (LMWDP #187)
My Music Production web site:
www.robertjason.com
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BoldJava
Senior Member
BoldJava
Joined: 2 Jun 2006
Posts: 1,507
Location: St Paul, MN
Expertise: I love coffee

Espresso: '82 Oly Cremina 67
Grinder: Macap MC4 Doserless Stepped
Vac Pot: Yamas
Drip: Hario, Beehouse, Cilio, Kone...
Roaster: RK Drum and Gene
Posted Thu Oct 21, 2010, 4:17am
Subject: Re: slimy wet puck, help?
 

IMAWriter Said:

Wet pucks can be caused by several things...
I've heard that pucks on the older Silvias could sometimes be a little damp...

Posted October 20, 2010 link

Yep.  I am more interested in how the cup tastes than the degree of moisture in the remnants. Moist pucks remain but shots are consistently fine since I have PID'd it.

B|Java

 
"On the trail for the goats' grail..."

Dave Borton
St Paul, MN
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Ccup
Senior Member
Ccup
Joined: 13 Feb 2009
Posts: 166
Location: australia
Expertise: I live coffee

Espresso: rancilio silvia
Grinder: rancilio rocky
Drip: na
Roaster: Behmor 1600
Posted Thu Oct 21, 2010, 6:28am
Subject: Re: slimy wet puck, help?
 

hello zimberto
the grind is quite fine
the extraxtion rate is usually within 25 to 30 mark.


now i am at the point where the flow is straight
dark colour like honey

jus the puck is wet and slime, messy.

 
"A good cup of coffee starts with a seedling."
Snaggle.

www.snagssharkteeth.com
http://stores.ebay.com.au/Snaggles-Shark-Teeth
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Ccup
Senior Member
Ccup
Joined: 13 Feb 2009
Posts: 166
Location: australia
Expertise: I live coffee

Espresso: rancilio silvia
Grinder: rancilio rocky
Drip: na
Roaster: Behmor 1600
Posted Thu Oct 21, 2010, 6:31am
Subject: Re: slimy wet puck, help?
 

helo imawriter

yes coffee is very fresh beans
fresh grinded
what does pid'd mean

thanks for everyone help!

 
"A good cup of coffee starts with a seedling."
Snaggle.

www.snagssharkteeth.com
http://stores.ebay.com.au/Snaggles-Shark-Teeth
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BoldJava
Senior Member
BoldJava
Joined: 2 Jun 2006
Posts: 1,507
Location: St Paul, MN
Expertise: I love coffee

Espresso: '82 Oly Cremina 67
Grinder: Macap MC4 Doserless Stepped
Vac Pot: Yamas
Drip: Hario, Beehouse, Cilio, Kone...
Roaster: RK Drum and Gene
Posted Thu Oct 21, 2010, 3:01pm
Subject: Re: slimy wet puck, help?
 

Ccup Said:

...
what does pid'd mean...!

Posted October 21, 2010 link

http://hubpages.com/hub/Modifying_Miss_Silvia

Proportional, Integral, and Derivative.  (Hooking a computer chip to control boiler temp and hold it steady).

B|Java

 
"On the trail for the goats' grail..."

Dave Borton
St Paul, MN
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IMAWriter
Senior Member
IMAWriter
Joined: 4 Jul 2002
Posts: 5,689
Location: Brentwood, TN
Expertise: I live coffee

Espresso: Bezzera Strega
Grinder: Forte, Preciso/Esatto, KyM...
Vac Pot: Adcraft SS, Yama 8 cup
Drip: Brazen, Kalita, Chemex,...
Roaster: Behmor 1600, CO/UFO combo
Posted Thu Oct 21, 2010, 4:09pm
Subject: Re: slimy wet puck, help?
 

BoldJava Said:

http://hubpages.com/hub/Modifying_Miss_Silvia

Proportional, Integral, and Derivative.  (Hooking a computer chip to control boiler temp and hold it steady).

B|Java

Posted October 21, 2010 link

Thanks for bailing me out! :>D

 
Rob J (LMWDP #187)
My Music Production web site:
www.robertjason.com
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