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Having problem pulling a good shot lately
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Discussions > Espresso > Q and A > Having problem...  
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katit
Senior Member


Joined: 29 Jan 2012
Posts: 64
Location: St Louis
Expertise: I like coffee

Posted Thu Aug 15, 2013, 8:55am
Subject: Having problem pulling a good shot lately
 

Here is my procedure. I use espro tamper.

  1. Tamp single push
  2. Tamp again (second push and give it a twist)
  3. Brew.

Nothing changed but lately I start to observe strange symptoms. Pre-infusion times look good. First it starts brewing as it should, nicely and steady. But in couple of seconds it just starts to really pour down and I get no crema (obviously)

I tried to play with a grind but smaller grind affects preinfusion and how it starts, eventually it brews fast and quick. It's almost like pressure "lifts a puck" or something like that.
Not sure what to look for.
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jonr
Senior Member


Joined: 25 Jun 2013
Posts: 295
Location: Americas
Expertise: I like coffee
Posted Thu Aug 15, 2013, 9:34am
Subject: Re: Having problem pulling a good shot lately
 

Sounds like channeling.  Perhaps a change in humidity or roast.
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katit
Senior Member


Joined: 29 Jan 2012
Posts: 64
Location: St Louis
Expertise: I like coffee

Posted Thu Aug 15, 2013, 10:04am
Subject: Re: Having problem pulling a good shot lately
 

Tried 3 different types of beans and just started to roast myself - all the same. Is it possible it's due to leaking gasket in my machine?
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emradguy
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emradguy
Joined: 31 Mar 2011
Posts: 3,032
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4 x2, VDD...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Thu Aug 15, 2013, 7:59pm
Subject: Re: Having problem pulling a good shot lately
 

jonr Said:

Sounds like channeling.  Perhaps a change in humidity or roast.

Posted August 15, 2013 link

Yeah...stale beans behave like this too. So does cold water at the group.

What machine are you using? What basket? What's your dose? Perhaps forget about preinfusion until you get this problem solved?

 
.
Always remember the most important thing is what ends up in your cup!
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frcn
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frcn
Joined: 23 Dec 2001
Posts: 3,387
Location: Northern California
Expertise: Professional

Espresso: Vibiemme Domobar Double
Grinder: Mazzer Kony, Baratza...
Vac Pot: Hario, 2 Cory pots, 1 Cory...
Drip: Behmor Brazen, Bunn A10 mod...
Roaster: computer controlled Hottop,...
Posted Thu Aug 15, 2013, 9:59pm
Subject: Re: Having problem pulling a good shot lately
 

Too little information. What machine? What grinder. What roast level? What blend?
On my website www.EspressoMyEspresso.com, check out this article: 12 - EASY GUIDE TO BETTER ESPRESSO AT HOME
Additionally, if you can post a video of the entire process it would also be of great help to us in diagnosing the problem.

 
Visit My Website
www.EspressoMyEspresso.com
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katit
Senior Member


Joined: 29 Jan 2012
Posts: 64
Location: St Louis
Expertise: I like coffee

Posted Fri Aug 16, 2013, 5:09am
Subject: Re: Having problem pulling a good shot lately
 

Replaced group gaskets, cleaned grinder. Adjusted again. 2 pulls were pretty good. So it seems to be  back to normal.

Machine - Alex PID (single boiled), Baratza Vario grinder.
I roasted myself this last coffee(decided to do that after bad luck with local roasters) and it actually tastes very good!
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Coffeenoobie
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Coffeenoobie
Joined: 11 Dec 2011
Posts: 3,022
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Fri Aug 16, 2013, 8:49am
Subject: Re: Having problem pulling a good shot lately
 

Every time I clean my grinder it seems I have to adjust it.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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brianl
Senior Member


Joined: 1 Dec 2012
Posts: 445
Location: Chicago IL
Expertise: I love coffee

Espresso: Gaggia Classic (w/PID)
Grinder: Baratza Vario
Drip: chemex
Posted Fri Aug 16, 2013, 10:00pm
Subject: Re: Having problem pulling a good shot lately
 

Yea, this seems to be a common Vario thing. I feel in the summer I have to recalibrate a lot.
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