Our Valued Sponsor
OpinionsConsumer ReviewsGuides and How TosCoffeeGeek ReviewsResourcesForums
Espresso: Questions and Answers
Extraction question
Stefano's Espresso Care
Repair - Parts - Sales
Factory Authorized &
Trained Technician
www.espressocare.com
 
Not Logged in: Log In to Postlog in
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered  
Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Discussions > Espresso > Q and A > Extraction...  
view previous topic | view next topic | view all topics
showing page 2 of 2 first page previous page
Author Messages
NobbyR
Senior Member
NobbyR
Joined: 10 Jul 2011
Posts: 2,021
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 Sat May 19, 2012, 1:37am
Subject: Re: Extraction question
 

emradguy Said:

With the wide steps of the Rocky, you will sometimes find you need to be between grind settings.  This is overcome by altering dose, rather than tamp pressure ...

Posted May 18, 2012 link

+1

 
***
"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)
back to top
 View Profile Link to this post
jneff28
Senior Member


Joined: 7 Apr 2007
Posts: 69
Location: Illinois
Expertise: I love coffee

Espresso: Silvia
Grinder: Maestro, Rocky
Drip: Press, quisinart
Roaster: Intelligentsia
Posted Tue May 29, 2012, 7:06pm
Subject: Re: Extraction question
 

NobbyR Said:

Five days after roasting seems a bit early to me. Most beans need 7 to 10 days rest.

You haven't mentioned how those shots taste.

Posted May 18, 2012 link

they taste ok but still seem to turn into gushers. I will try a finer grind and maybe a little less tamp pressure
back to top
 View Profile Link to this post
emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,947
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 Wed May 30, 2012, 7:24am
Subject: Re: Extraction question
 

once again, if you're "correct" setting for grind is between steps, you'll have to adjust dose...and you may have to work on grounds distribution

Changing your tamp pressure is not useful.  You'll never tamp at the pressure the water comes through the group (about 140 pounds), so changing from 20 to 60 (or some other number in between) isn't going to do squat, other than make you more likely to fracture the puck in the basket (thereby increasing your risk of channeling).  Best tamping results are to pick something comfortable and do it the same all the time.  Just make sure the tamper fits the basket, and you're keeping it level.

 
.
Always remember the most important thing is what ends up in your cup!
back to top
 View Profile Link to this post
jneff28
Senior Member


Joined: 7 Apr 2007
Posts: 69
Location: Illinois
Expertise: I love coffee

Espresso: Silvia
Grinder: Maestro, Rocky
Drip: Press, quisinart
Roaster: Intelligentsia
Posted Wed May 30, 2012, 7:39am
Subject: Re: Extraction question
 

emradguy Said:

once again, if you're "correct" setting for grind is between steps, you'll have to adjust dose...and you may have to work on grounds distribution

Changing your tamp pressure is not useful.  You'll never tamp at the pressure the water comes through the group (about 140 pounds), so changing from 20 to 60 (or some other number in between) isn't going to do squat, other than make you more likely to fracture the puck in the basket (thereby increasing your risk of channeling).  Best tamping results are to pick something comfortable and do it the same all the time.  Just make sure the tamper fits the basket, and you're keeping it level.

Posted May 30, 2012 link

Your correct. Stay with my current tamp pressure. The tamper could be issue. When i got machime chris coffee sent me their tamper and it surely doesnt seem to fit my basket as close as i had thought. I will look into that and plan to pick up a gram scale
back to top
 View Profile Link to this post
emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,947
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 Wed May 30, 2012, 8:13am
Subject: Re: Extraction question
 

if you don't have an accurate way to measure what size you really need, and can spare a basket for a while, Reg Barber does custom fit tampers.  You send in a basket and they sell you an exact fit base.  They offer aluminum, stainless steel, brass and copper. and each comes in various surfaces (flat, curved, more curved, ridged, angles at the edge, and a couple of combos). They also do handles in wood and aluminum (with/without powder coat), and you can get custom engraving too.  Not trying to do a sales ad, but I've been really happy with their stuff.  People say you should try to get a tamper that matches the shape of your shower screen, but I really don't think it matters (certainly, no one has a screen with ridges).

 
.
Always remember the most important thing is what ends up in your cup!
back to top
 View Profile Link to this post
jneff28
Senior Member


Joined: 7 Apr 2007
Posts: 69
Location: Illinois
Expertise: I love coffee

Espresso: Silvia
Grinder: Maestro, Rocky
Drip: Press, quisinart
Roaster: Intelligentsia
Posted Thu May 31, 2012, 6:04am
Subject: Re: Extraction question
 

Picked up a scale and started to measure my doses. First one was 19g.. Worked pretty good. Then somehow my next 3 were 21g after switching to new bag of beans roasted on 3/22. So i guess my target is 18-19g?
back to top
 View Profile Link to this post
emradguy
Senior Member
emradguy
Joined: 31 Mar 2011
Posts: 2,947
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 Thu May 31, 2012, 8:32am
Subject: Re: Extraction question
 

In my mind, dose weight should be mostly decided by taste, with adjustments made to grind fineness to achieve the desired extraction time (also decided by taste).   I know that's complicated, but the recommendation is to do a taste test exercise using different dose weights (preferably side by side).  First you figure out your end point.  Get your shot extraction in the apparent desired range (e.g., 22-28 seconds).   Then taste the extraction as it drips out of the portafilter (rapid successions of tiny tastes with a small spoon).  Once you get a good idea when the extraction is finished, pull your shots at the varied weights and try them side by side to see which you like best.

This gets you a long way, and you certainly can stop there, knowing you've got shots that taste great to you.  However, you can also take it a step further and make tiny grind adjustments to see whether you like ristretto, normale, or lungo extractions.

 
.
Always remember the most important thing is what ends up in your cup!
back to top
 View Profile Link to this post
showing page 2 of 2 first page previous page
view previous topic | view next topic | view all topics
Discussions > Espresso > Q and A > Extraction...  
New Topics updated topics   New Posts new posts   Unanswered Posts new unanswered     Search Discussion Board search   Discussion Board FAQ faq   Signup sign up  
Not Logged in: Log In to Postlog in
Discussions Quick Jump:
Symbols: New Posts= New Posts since your last visit      No New Posts= No New Posts since last visit     Go to most recent post= Newest post
Forum Rules:
No profanity, illegal acts or personal attacks will be tolerated in these discussion boards.
No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum.
No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek.
No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum.
Who Can Read The Forum? Anyone can read posts in these discussion boards.
Who Can Post New Topics? Any registered CoffeeGeek member can post new topics.
Who Can Post Replies? Any registered CoffeeGeek member can post replies.
Can Photos be posted? Anyone can post photos in their new topics or replies.
Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts.
Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.
Cafe Espresso Machines
Video reviews, nationwide installation, leasing options... Nuova Simonelli, Rancilio, La Marzocco.
www.seattlecoffeegear.com
Home | Opinions | Consumer Reviews | Guides & How Tos | CoffeeGeek Reviews | Resources | Forums | Contact Us
CoffeeGeek.com, CoffeeGeek, and Coffee Geek, along with all associated content & images are copyright ©2000-2014 by Mark Prince, all rights reserved, unless otherwise indicated. Content, code, and images may not be reused without permission. Usage of this website signifies agreement with our Terms and Conditions. (0.280034065247)
Privacy Policy | Copyright Info | Terms and Conditions | CoffeeGeek Advertisers | RSS | Find us on Google+