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Baseline settings for Crossland CC1
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dlk7u
Senior Member


Joined: 21 May 2013
Posts: 17
Location: NYC
Expertise: Just starting

Posted Mon Jun 24, 2013, 7:21pm
Subject: Re: Baseline settings for Crossland CC1
 

Thanks!  The change-at-the-boiler-but-not-the-grouphead is basically what I was expecting.

Silly question: is there one component of the espresso flavor that is typically affected by the pre-infusion time?  What about the wait time?  I'm guessing this varies a lot for different beans, but was just looking for a basic rule of thumb.
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dlk7u
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Joined: 21 May 2013
Posts: 17
Location: NYC
Expertise: Just starting

Posted Mon Jun 24, 2013, 7:23pm
Subject: Re: Baseline settings for Crossland CC1
 

For what it's worth, SCG basically told me to stay away from the pre infusion options until I was certain that my grind was right, less I go chasing infusion "problems" down a rabbit hole :)
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D4F
Senior Member


Joined: 15 Mar 2012
Posts: 1,878
Location: USA
Expertise: I like coffee

Espresso: Gaggia Classic PID
Grinder: Preciso
Posted Mon Jun 24, 2013, 7:51pm
Subject: Re: Baseline settings for Crossland CC1
 

dlk7u Said:

I've noticed a sizable drop in boiler temp from a 3 sec flush, presumably from room temp water being drawn into the boiler.  I'm wondering how this relates to the (pretty flat) temp curves at the brewhead that Dean observed using a thermocouple.  Is the answer that this (mid-brew) drop at the boiler doesn't affect the temp at the grouphead (and therefore isn't something to worry about)?  I think this shows my lack of understanding of boiler/grouphead design.

Posted June 24, 2013 link


The unimpeded flow rate of a typical vib pump is about 10 cc/sec, 600cc/min.  A flush puts most a pull worth of water through the system in a few seconds vs 25 - 30 seconds for the same volume.  The system is not designed to heat at that flush rate.

 
D4F also at
http://www.gaggiausersgroup.com/
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,219
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Mon Jun 24, 2013, 8:28pm
Subject: Re: Baseline settings for Crossland CC1
 

dlk7u Said:

For what it's worth, SCG basically told me to stay away from the pre infusion options until I was certain that my grind was right, less I go chasing infusion "problems" down a rabbit hole :)

Posted June 24, 2013 link

no clue why they would say that. I dialed in the second I got the machine with 2 seconds pre and 2 wait. Beans right now I'm on 2 but 4 seconds wait.
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dlk7u
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Joined: 21 May 2013
Posts: 17
Location: NYC
Expertise: Just starting

Posted Tue Jun 25, 2013, 10:17am
Subject: Re: Baseline settings for Crossland CC1
 

I was wondering about that also.  I think their explanation was that pre-infusion makes much less of an effect on taste than grind, so to the extent I was having any issues, I should focus on grind.
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