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Single vs double shot time discrepancy la marzocco gs3
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Circlestreetcoffee
Senior Member


Joined: 21 Feb 2014
Posts: 6
Location: Kathmandu
Expertise: I live coffee

Espresso: La marzocco gs3
Grinder: Mazer sj and baratza vario w
Roaster: Top of the world coffee
Posted Fri Feb 21, 2014, 2:54am
Subject: Single vs double shot time discrepancy la marzocco gs3
 

New gs3 owner here and I'm having a hard time getting consistent shot times when I go from pulling singles to doubles or vice versa.  My singles are hitting at 26 seconds but my doubles at 8 seconds.  If I adjust correctly for a double my single shot time goes 35+.... Help!

I may need to change the machines parameters but I'm a bit cautious to launch off into that.
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emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 3,113
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 Fri Feb 21, 2014, 8:16am
Subject: Re: Single vs double shot time discrepancy la marzocco gs3
 

congrats on getting a GS/3! It doesn't really matter what machine you have though...you need to adjust your grind differently between singles and doubles. In other words, you have to re-dial in your dose and grind when changing from one to the other. Although you could learn to compensate by altering your dose, it won't likely produce a balanced shot.  This is why most of us, and even some retail cafes only pull "doubles".  It's actually less wasteful to sink half of a double than re-dial the grind for a single.

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


Joined: 21 Feb 2014
Posts: 6
Location: Kathmandu
Expertise: I live coffee

Espresso: La marzocco gs3
Grinder: Mazer sj and baratza vario w
Roaster: Top of the world coffee
Posted Fri Feb 21, 2014, 11:22pm
Subject: Re: Single vs double shot time discrepancy la marzocco gs3
 

Thanks for that.  It totally makes sense.  We r only pulling doubles except for our cappuccino bc we r serving traditional 6oz size.  But it would definitely be easier to throw out a shot than to dial in going back and forth based on our waste from yesterday.
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