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Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
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jz687
Senior Member


Joined: 17 May 2013
Posts: 2
Location: Montreal
Expertise: I love coffee

Posted Fri May 17, 2013, 4:18pm
Subject: Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
 

Hey,

So, I'm new to home brewing and have a quick question for you guys.

I recently purchased a Baratza Preciso, and following Intelligentsia's brew ratio (24g:410g in just under 3min) I've found that an 11 on my Baratza gets me where I want to be (brew done in 2:56)

I just finished the beans I was using and now, when I did the exact same thing but with a new bag of beans (different roaster) my total brew time was 3:10.

Is it that normal/expected? Do different beans really affect brew time that much?

(Using a v60, fyi)


Thanks!
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dyqik
Senior Member


Joined: 7 Oct 2011
Posts: 383
Location: Cambridge, MA
Expertise: I love coffee

Espresso: Bezzera BZ07 PM
Grinder: Baratza Virtuoso Preciso...
Vac Pot: Cona D
Drip: Bona-Vita, CCD, Aeropress.
Roaster: Gene Cafe, Modded Poppers
Posted Mon May 20, 2013, 6:24am
Subject: Re: Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
 

The density of beans and grounds will change with roast and bean type, so that's not really surprising.  For espresso, I can vary between 15g for dark roasted (FC+/Vienna) to 17g for a high altitude bean light roasted, keeping temperature, volume in the the portafilter and shot time constant (by varying the grind and dose).  If I didn't vary to keep constant shot time, the times would vary between about 20 to 45 seconds with bean type.
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emradguy
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emradguy
Joined: 31 Mar 2011
Posts: 2,953
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 Mon May 20, 2013, 9:30am
Subject: Re: Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
 

Yeah, if you change beans and don't change your grinder, you're going to get different a extraction rate.  It would be like hitting the lottery to get the exact same extraction rate from the same grinder setting for two different beans/blends.  Yeah, I know, it seems weird that the particle size is determined not only by the spacing between the burrs, but also by what you put between them, but it is undisputable fact.  As beans age or if they're roasted (even slightly) differently, the grind needs to be adjusted if one wants to have the exact same extraction time.  Extraction is also affected by water temperature fluctuations.

btw, you didn't say what brew method you use. It sounds like pourover or drip, but those extraction times are also in the fp range.

.

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


Joined: 18 Apr 2013
Posts: 114
Location: USA
Expertise: I love coffee

Posted Mon May 20, 2013, 5:38pm
Subject: Re: Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
 

this is actually acceptable. if you have change beans, then most likely it would change your extraction rate. happy brewing :).

flori
blogger, coffeeloversofworld.com
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jz687
Senior Member


Joined: 17 May 2013
Posts: 2
Location: Montreal
Expertise: I love coffee

Posted Mon May 20, 2013, 6:53pm
Subject: Re: Baratza Preciso + Different Beans + Same Recipe = Different Brew Time?
 

Thanks!!! Really appreciate the info!
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