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double shot
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Discussions > Espresso > Q and A > double shot  
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tdifraia
Senior Member


Joined: 13 Dec 2012
Posts: 78
Location: Boston
Expertise: Just starting

Espresso: QM67
Grinder: Baratza Vario
Drip: Bunn
Posted Thu Feb 28, 2013, 3:20pm
Subject: double shot
 

I am dosing my double basket with 16.3 g and am getting 1.3 oz at 28 seconds before I have to stop the shot (Blonding). I would like to get 2 oz. I tried going finer, using the same dose (16.3 g), but the pour was too restricted (1.7 g ~ 42 secs.)
The shot taste pretty good but is running too long and is kind of cool. How can I get 2 oz and keep the pull under 30 seconds... Should I:
  1. Adjust the grind finer and use less of a dose?
  2. Adjust the grind coarser but use more of a dose?
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NobbyR
Senior Member
NobbyR
Joined: 10 Jul 2011
Posts: 2,040
Location: Germany
Expertise: I love coffee

Espresso: Poccino Opus One, Ariete
Grinder: Eureka Mignon Istantaneo
Vac Pot: N/A
Drip: Melitta Linea Unica de Luxe
Roaster: N/A
Posted Fri Mar 1, 2013, 2:17am
Subject: Re: double shot
 

If you only get 1.3 oz (about 38 ml) in 28 seconds, you'll have to grind coarser in order to get more espresso using the same dose or grind even coaser and use a higher dose. Alternatively you could use a smaller dose using the same grind or a combination of a smaller dose and a finer grind to get the results you're looking for. Several combinations of dose and grind might lead to the same volume. You'll have to dome some experimention to find out what tastes best to you.

 
***
"This drink of the Satan is so delicious that it would be a shame to leave it to the infidels." (Pope Clement VIII on coffee, when he was urged to ban the beverage)
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fwtechwiz
Senior Member


Joined: 19 Feb 2010
Posts: 530
Location: Fort Wayne, IN
Expertise: I live coffee

Espresso: Gaggia Evolution
Grinder: Hario Skerton
Posted Fri Mar 1, 2013, 2:25am
Subject: Re: double shot
 

If you're blonding early you could be under extracting.  Use more coffee, updose to 17 or even 17.5 g and keep the grind the same or go a bit coarser.   BUT if the shot tastes bitter and woody, you're actually over extracting due to too high a temp and too fine a grind.  Keep the dose the same, and lower the temp, try grinding coarser instead of finer to get down to 22-25 seconds.
At the end of the day, taste will tell.  Sour is under extraction, solved by grinding finer, updosing or raising temps.  Bitter is over extraction solved by grinding coarser, dosing less or lowering temps.
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pstam
Senior Member
pstam
Joined: 27 Jan 2004
Posts: 2,348
Location: Beijing
Expertise: Professional

Espresso: ECM, SAN MARCO, EURO 2000
Grinder: MAZZER
Vac Pot: YES
Drip: YES
Roaster: YES, HOME STYLE
Posted Thu Mar 7, 2013, 4:33am
Subject: Re: double shot
 

tdifraia Said:

I am dosing my double basket with 16.3 g and am getting 1.3 oz at 28 seconds before I have to stop the shot (Blonding). I would like to get 2 oz. I tried going finer, using the same dose (16.3 g), but the pour was too restricted (1.7 g ~ 42 secs.)
The shot taste pretty good but is running too long and is kind of cool. How can I get 2 oz and keep the pull under 30 seconds... Should I:
Adjust the grind finer and use less of a dose?
Adjust the grind coarser but use more of a dose?

Posted February 28, 2013 link

I would suggest you to fix one of those, for example the grinding.  Then, you can adjust the amount of the dose and compare the tastes, until you get the best taste.

If you cannot get the best tastes, grind courser but not too much and keep it as it is.  Then, adjust the amount of dose again until you get the best tastes.

It is our way of adjusting.  You can try it.

 
Peter in Beijing
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http://www.kaffa.cn/
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I am looking for the way and the place to extend our trainning courses.
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