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Tamping Science, Theory and Practice, Part One by Mark Prince
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MarkPrince
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Joined: 19 Dec 2001
Posts: 5,611
Location: Vancouver, BC
Expertise: Professional

Espresso: KvdW Speedster
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Roaster: Hario Glass Retro Roaster
Posted Thu Aug 30, 2007, 10:13pm
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

Hola folks.

You may be wondering where the heck is part two of this article.

The answer is, it's waiting for some additional development of the CoffeeGeek Tamper. A lot of research, testing by some world class baristas (and world champions), feedback by working baristas, home baristas, and everyone in between has not only modified what I want to do with this tamper, but influenced greatly the content of both Part two and part three of this article.

they are coming. But the tamper project has to finish first. And after a good recent meeting with the person helping me to make this tamper, things look a lot closer today than they did only a short while ago.

Thanks for your patience. And auction winners for 001, 002, and 003 of the CG tamper? I haven't forgotten you. In fact, I plan something extra for you three once the thing is finally finished and ready to ship.

Mark

 
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ground_coffee
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Joined: 10 Sep 2007
Posts: 30
Location: London, UK
Expertise: I love coffee

Posted Tue Oct 2, 2007, 5:36am
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

Hi

I'm from the UK.  Just bought my first proper machine having previously used a gaggia trevi exclusive for 5.5 years (it broke down at least every six months).

I paid 450 (about $900) for my Silvia and doserless Rocky grinder.  

Now, I need a decent tamper.  I know there are threads-a-many on tampers but having read them, I am no closer to making a decision.  Anyone care to recommend a decent tamper specifically to be used with a double basket 58mm Silvia portafilter?  I am willing to pay upto 25 ($50).  Should I buy a 57mm for Mark's North, East, South, West tamping procedure?

Thanks in advance
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ground_coffee
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Joined: 10 Sep 2007
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Location: London, UK
Expertise: I love coffee

Posted Tue Oct 2, 2007, 7:17am
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

can you advise me about reg barber tampers?  they say they can make your base accurate to 0.1mm.  Which means I can get a 57.6mm tamper.  Ideal diameter for the sylvia double basket?

thanks in advance
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Philosopher
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Location: Australia
Expertise: I like coffee

Espresso: Silvia
Grinder: Rocky
Posted Sun Jan 25, 2009, 3:00am
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

I have been trying a new tamping technique based on the principle of how road base is bedded down before laying concrete pavers.

1) Light levelling tamp
2) Place tamper over the grounds
3) KNOCK the PF several times whilst applying light pressure to the top
4) Heavy tamp
5) Polish

Since doing this, I am getting very nice tight pucks which don't obviously channel, fragment or delaminate.
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MarkPrince
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Joined: 19 Dec 2001
Posts: 5,611
Location: Vancouver, BC
Expertise: Professional

Espresso: KvdW Speedster
Grinder: Versalab M3 Grinder
Vac Pot: A bit too many
Drip: Bonavita
Roaster: Hario Glass Retro Roaster
Posted Tue Sep 22, 2009, 2:30pm
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

I know this article is now ancient. There really is a part 2 and a part 3 coming.

The problem is (and was) that I was waiting until the CoffeeGeek Tamper Project was finalised before posting the other two articles. The 2nd one is written, the third one is in draft form.

For several years, I've been trying to coordinate with Reg Barber to get what I thought was the ideal tamper built - at least what I thought was ideal. Prototypes were made - there's about 20+ in existence now, and people like Jim Hoffmann, Andy Schecter, Matt Riddle and others have one.

Unfortunately (for this project, not for him), Reg is a very busy person, and we got bogged down in the minutia of the design. I wanted it to be perfect, out the door. There were many frustrations along the way.

Very recently (as in the last three weeks), the tamper project has been kickstarted again. New CAD drawings were done and the piston shape, along with the handle shape (it's GOTTA be extremely comfortable) have had some final tweaks, including some very minor (but important to me) aesthetic and usability additions. I'm optimistic this tamper will eventually get built, and we'll have an initial run of 200 to offer (already about 100+ are spoken for - not sure if that's still the case, but there was some very serious commitments).

I am embarrassed and sorry that this has dragged out for so long, and that Part 2 and Part 3 haven't seen the light of day here yet. Hopefully that will change soon.

Mark

 
CoffeeGeek Senior Editor
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JonR10
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JonR10
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Location: Houston, Texas
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Espresso: E61 Legend, Livietta,...
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Roaster: 1-lb US Roaster, Behmor 1600
Posted Tue Sep 22, 2009, 4:37pm
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

MarkPrince Said:

I know this article is now ancient. There really is a part 2 and a part 3 coming.

Posted September 22, 2009 link

Looking forward to it!  



MarkPrince Said:

...and we'll have an initial run of 200 to offer (already about 100+ are spoken for - not sure if that's still the case, but there was some very serious commitments).

Posted September 22, 2009 link

I sure hope one is ear-marked for me!  

If not, would you please save me one?  

Pretty please??

 
Jon Rosenthal
Houston, TX
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rabbit
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Joined: 3 Sep 2008
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Location: maine
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Espresso: v.3  miss sylvia
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Roaster: fresh roast sr300
Posted Tue Sep 22, 2009, 8:40pm
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

+1 if yuh sell it will byit!! cool swag(shirts and stuff) it would be cool to use something with CG brand on it....
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shlegminitism
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Joined: 4 Nov 2009
Posts: 13
Location: tifton, ga
Expertise: I love coffee

Espresso: Quick Mills Andreja
Grinder: baratza v. preciso, Pasquini...
Vac Pot: Electrolux
Drip: v60
Roaster: soon i hope
Posted Thu Oct 3, 2013, 9:35am
Subject: Re: Tamping Science, Theory and Practice, Part One by Mark Prince
 

Wow.  I'm just making the decision to splurge on a quick mills Alexia, and i have found this thread to be very informative and helpful. I'm trying to go ahead and build a decent starting-point foundation to use in moving forward, and this has contributed to it and given me some more sources for exploration.  I want to thank Mark and all those who have contributed, and i also wanted to ask where we stand on part 2 and 3?  I got these cheeseburgers...
Thanks,
Chris

+1 to wanting to experiment with one of those magical tampers if there are still any around. I'll be needing to invest in one as soon as i order my machine, which i hope to be in the next few weeks!
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