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espresso noob (sort of) seeking preinfusion help
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GarethAJones
Senior Member


Joined: 9 Jun 2014
Posts: 21
Location: victoria BC
Expertise: I love coffee

Posted Mon Jun 16, 2014, 4:34pm
Subject: espresso noob (sort of) seeking preinfusion help
 

Hello!

I've been making espresso faithfully, on a daily basis, with my Gaggia. Same machine for about 3 or 4 years.

Today I went ahead and purchased a Crossland CC-1. The CC-1 has a digitally timed, variable control preinfusion. Up until this time I've had no control over how long my puck gets preinfused. With my new found control, though, I have no idea where to start. What would be a good amount of time to preinfuse the puck? 3 seconds? 5? 12 hours? (I kid)

Please share your thoughts!
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,388
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Mon Jun 16, 2014, 5:24pm
Subject: Re: espresso noob (sort of) seeking preinfusion help
 

I have mine at preinfuse for 2 seconds and dwell for 3 or 4 can't remember. I then time from 1st drip not total time shown on the screen. So 1st drips usually start around 8 seconds or so, so I'll stop the shot at 38 for example for "30" second extraction (just an example, I'm usually around 36-39 for double depending on when 1st drips start). Some go by total time, just play with it and see what taste best to you. Think my temp is 202 or 203 on the blend I have right now.

Make sure your giving ample warm up time, I let the machine warm up for about 30 min or so with the PF lightly locked in. Then I pull a blank shot to get water flowing (vibe machines generally have a delay for water on the 1st shot, hence sink shots lol, doing the blank pull helps fix that) and make sure everything is nice and toasty.
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GarethAJones
Senior Member


Joined: 9 Jun 2014
Posts: 21
Location: victoria BC
Expertise: I love coffee

Posted Mon Jun 16, 2014, 5:32pm
Subject: Re: espresso noob (sort of) seeking preinfusion help
 

thanks for the great tips!
I'm not sure my machine has a programmable idle time between infusion and pressurized pour, but I'll have to look into it. It sure is a nice machine for the price, though.

Does preinfusion serve any purpose other than making the beans moist, and allowing them to expand slightly into a better filtration medium for the water?
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CMIN
Senior Member


Joined: 14 Jun 2012
Posts: 1,388
Location: South FL
Expertise: I like coffee

Espresso: Crossland CC1
Grinder: Baratza Preciso
Posted Mon Jun 16, 2014, 6:29pm
Subject: Re: espresso noob (sort of) seeking preinfusion help
 

It does, I own a CC1 ;), and it is a very nice machine for the $. When you turn the knob when entering the presets, it's called dwell which is that idle time after preinfuse.

Basically makes the puck prepped and ready, for a nice extraction vs just turning on and hitting the puck full force like on a normal vibe pump machine.
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