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Espresso Stream far from Steady. Why?
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CWirth
Senior Member


Joined: 9 Jun 2013
Posts: 20
Location: Tampa
Expertise: I love coffee

Posted Sat Jun 15, 2013, 2:29pm
Subject: Espresso Stream far from Steady. Why?
 

Hello,

I have just received my CC1. It is an upgrade from my Starbucks Barista. Although my first few shots have looked great, have had great crema, and have tasted pretty good I have not been able to reach the flow consistency I was able to with my barista. While the end shot looks good, the shot will start slowly, stop, start, sometimes bubbles a bit, and quickly speeds up and blondes.

It is exactly what happens in the SCG videos: http://m.youtube.com/watch?v=NEVG3Y6ywnc

I would like to fix this as I am sure it is the source of the shots not tasting as good as I was able to get (occasionally) with my Barista using the same coffee.

I have read that the shot should be a steady stream with consistent viscosity. This is what I am a trying to achieve.

FYI I am using a Baratza Preciso

Thank you,

Chris
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 3,287
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4, Pharos,...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Sat Jun 15, 2013, 6:09pm
Subject: Re: Espresso Stream far from Steady. Why?
 

Thanks for including your grinder. Assuming you're also using beans that are freshly roasted within the past two weeks, and that you store them well, and your CC1 is in proper working order...

I'd suggest the problem lies in 1) your grind setting, 2) your dose weight, and/or 3) your distribution technique (the most likely culprit unless your grind setting is off)

I think a great place to start is article 12 on www.espressomyespresso.com Easy Guide to Better Espresso at Home

 
.
Always remember the most important thing is what ends up in your cup!
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CWirth
Senior Member


Joined: 9 Jun 2013
Posts: 20
Location: Tampa
Expertise: I love coffee

Posted Sat Jun 15, 2013, 6:14pm
Subject: Re: Espresso Stream far from Steady. Why?
 

emradguy Said:

Thanks for including your grinder. Assuming you're also using beans that are freshly roasted within the past two weeks, and that you store them well, and your CC1 is in proper working order...

I'd suggest the problem lies in 1) your grind setting, 2) your dose weight, and/or 3) your distribution technique (the most likely culprit unless your grind setting is off)

I think a great place to start is article 12 on www.espressomyespresso.com Easy Guide to Better Espresso at Home

Posted June 15, 2013 link

I have been using the WDT method, multiple grind settings from close to choking the machine to way to corse and a few different dose weights (although I have not messed around as much with this). The last shot I made had a grounds weight of 17.5g to produce 34g of espresso.

I will define you check out that guide though.

Thanks!
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 3,287
Location: Houston
Expertise: I live coffee

Espresso: Duetto II; Twist v2
Grinder: M Major, Macap M4, Pharos,...
Drip: Espro presses; Aeropress
Roaster: H-B "List of Favorites"
Posted Sat Jun 15, 2013, 6:21pm
Subject: Re: Espresso Stream far from Steady. Why?
 

All sounds good. Let me mention two other things.

1) a bottomless pf is a great tool for diagnosing problematic extractions

2) remember that when all is said and done, the thing that really matters is how it tastes

.

 
.
Always remember the most important thing is what ends up in your cup!
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,497
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Sat Jun 15, 2013, 6:34pm
Subject: Re: Espresso Stream far from Steady. Why?
 

Most likely distribution (even if you wdt its hard to see how well you did it without a bottomless), or beans or grind setting. I'm sure the machine is fine. SCG is fun to watch but don't try to copy their pulls lol, majority of the time they pull like 15-20 second shots sometimes a little longer inc preinfusion. Personally I shoot for 27-30 seconds timed from 1st drip, which after preinfusion and dwell is usually right around 10 second mark to start pouring.

But like said above, its the taste that matters. It can take a little bit before getting the hang of machines in this class and higher vs a simple one like the Barista (pressurized or non pressurized) or cheaper pressurized ones. Took me like month to get my shots consistant between tamping, dosing, grind, distributing etc. Then the coffee was exponentially better.
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CWirth
Senior Member


Joined: 9 Jun 2013
Posts: 20
Location: Tampa
Expertise: I love coffee

Posted Sat Jun 15, 2013, 6:37pm
Subject: Re: Espresso Stream far from Steady. Why?
 

CMIN Said:

Most likely distribution (even if you wdt its hard to see how well you did it without a bottomless), or beans or grind setting. I'm sure the machone is fine. SCG is fun to watch but don't try to copy their pulls lol, majoroty of the time they pull lime 15-20 second shots sometimes a little longer inc preinfusion. Personally I shoot for 27-30 seconds timed from 1st drip, whoch after preinfusion and dwell is usually right around 10 second mark to start pouring.

Posted June 15, 2013 link

Yeah I was just using the video to show you what I was doing which I don't want to do. I also shoot for an even stream that lasts around 27sec which I was able to achieve on my other machine quite well. I may have to get a bottemless portafilter to see what is going on. Also, do you find that pre infusion helps? What settings do you use for it?
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SStones
Senior Member
SStones
Joined: 24 Nov 2012
Posts: 510
Location: Canada
Expertise: Professional

Espresso: Giga 5, ECM Giotto, Rocket...
Grinder: Anfim Milano-Best
Vac Pot: No  :(
Drip: Some $30 thing from Walmart
Roaster: I buy pre-roasted.
Posted Wed Jun 19, 2013, 5:02pm
Subject: Re: Espresso Stream far from Steady. Why?
 

Is the sound of your pump changing with the changes in flow?
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