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The Compak K3 Grinder User's Thread
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JasonBrandtLewis
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JasonBrandtLewis
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Espresso: Elektra T1 - La Valentina -...
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Posted Sat Mar 14, 2009, 9:52am
Subject: Re: The Compak K3 Grinder User's Thread
 

MarkPrince Said:

Well that's it for now. Thoughts?

Posted March 14, 2009 link

Great start, Mark -- just the sort of information I was looking for . . .

 
A morning without coffee is sleep . . .
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niwot
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Joined: 7 May 2007
Posts: 37
Location: Niwot, CO

Espresso: Silvia v2
Grinder: Mazzer Mini E
Vac Pot: Quoi?
Drip: Post nasal
Roaster: Behmor 1600
Posted Mon Mar 16, 2009, 7:20pm
Subject: Re: The Compak K3 Grinder User's Thread
 

niwot Said:

I would really like to get one of the K3 mini hoppers for use on a K6. Just curious if anyone knows a source for purchasing the mini hopper separately. If not I'll check with one or more dealers, and I'll post a follow-up if I learn anything.

Posted March 13, 2009 link

Espresso Parts NW will sell the K3 mini hopper separately. The part number is K02286. I'm still thinking it over, but if anyone is interested you're welcome to email EPNW.
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Viernes
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Viernes
Joined: 22 Sep 2008
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Location: Spain
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Espresso: Izzo Alex Duetto II
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Posted Sun Mar 29, 2009, 9:31am
Subject: Re: The Compak K3 Grinder User's Thread
 

How do you clean your K3? Rice? Grindz? And how often?

Actually I dissamble the burr carrier and try to clean all coffee with a brush, but it's very time consuming, there's a lot of stall coffee inside.
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GC7
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Joined: 7 Jan 2008
Posts: 182
Location: Westchester County, NY
Posted Mon Mar 30, 2009, 7:33am
Subject: Re: The Compak K3 Grinder User's Thread
 

About 1 time per month I run 40-50 gm of minute rice through the grinder and then vacuum and compressed air clean followed by some coffee and repeat the vacuum and air cleaning.

Every day I vacuum out the grind chamber (my small carry Oreck tube fits perfectly inside) and pulse out the remaining grinds vacuuming the residue. This takes about 1 minute.

However, I'm getting a much louder sound this morning when grinding.  I changed coffees (Liq Amber Blend).  I loosened the grind way down to coarse settings and then vacuumed out the chamber before resetting but its still making that sound.  It's not junk (rock etc) in the beans and I don't think the burrs could be touching as I use a much tighter setting for SO ethiopians at low dose and decafe.  Thoughts?
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OvenRoasted
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Joined: 26 Dec 2008
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Location: Southwest
Expertise: I live coffee

Grinder: Compak k3 Yellow Woo!
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Posted Mon Mar 30, 2009, 9:19am
Subject: Re: The Compak K3 Grinder User's Thread
 

Are the Rubber guard fingers hitting the burrs?
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GC7
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Joined: 7 Jan 2008
Posts: 182
Location: Westchester County, NY
Posted Mon Mar 30, 2009, 11:33am
Subject: Re: The Compak K3 Grinder User's Thread
 

OvenRoasted Said:

Are the Rubber guard fingers hitting the burrs?

Posted March 30, 2009 link

Good Question - One is gone already and I should just take out the other one.  It's more of a high pitched sound then I think rubber would make.  I called Chris Coffee and the tech wants to listen over the phone if the sound continues.

The grinds are still fine. 26 second 1.75 oz liquid amber pulls with no channeling.
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jorgeelizondom
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Joined: 7 Feb 2009
Posts: 28
Location: Mexico
Expertise: Just starting

Posted Mon Mar 30, 2009, 4:08pm
Subject: Re: consistency in doze weight for a given volume
 

I'm kind of concerned/puzzled by the variation in doze weight given the same volume.

After grinding I use the handle of my scoop to level the PF flat. Always use the same procedure: do not tamp, level using NSEW, never disturbing the grounds, etc.
After leveling, I have recently began weighting to measure how consistent is the doze weight. I found that the doze weight varies from 16 to 18gr, sometimes varying these 2 grams within a day difference (same humidity, batch, etc).

Is this variation too extreme?  

I appreciate your comments.
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GC7
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Joined: 7 Jan 2008
Posts: 182
Location: Westchester County, NY
Posted Mon Mar 30, 2009, 6:36pm
Subject: Re: consistency in doze weight for a given volume
 

Jorge

I can't explain what you're observing except that I would bet that the variation isn't from the grinder.

Have you used the touch feature and weighed the coffee?  I've found pretty consistent results from touch dosing so long as the hopper has a reasonable amount of beans and you use the same beans.  I've not tried that from day to day but only during a prolonged series of shots from an individual bean preparation.


Also, my noise went away after changing coffee to pull an Ethiopia IMV SO shot (heavenly) and then resetting the grind (tighter) to make a decafe cappuccino.  I can't explain it but I'm happy and its humming quietly away.
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theonh
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Joined: 18 Jul 2009
Posts: 8
Location: Toronto
Expertise: Just starting

Posted Thu Aug 13, 2009, 12:36pm
Subject: Re: The Compak K3 Grinder User's Thread
 

I too have noticed that there is an issue with grind retention with this machine. There is basically a ring of coffee left around the side of the sweeper within the burr chamber (I'll try to get a picture up of what I'm talking about next time I clean it). I'm not sure if it's only my sweeper, but the metal sweeper arms don't make it all the way to the edge of the circular chamber which I think is responsible for most of the grind retention.

I'm thinking of attaching some velcro or something to the end of the sweeper so it can get closer to the edge. Anyone think this is a good idea/have a better idea?
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theonh
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Joined: 18 Jul 2009
Posts: 8
Location: Toronto
Expertise: Just starting

Posted Thu Aug 13, 2009, 12:44pm
Subject: Re: The Compak K3 Grinder User's Thread
 

Actually, SM has some pictures of what I'm talking about. In the second set of images, it's the image on the right. The gap between the edge and those 3 metallic sweeper arms leave a big circle of coffee left from grind to grind.

Click Here (www.sweetmarias.com)
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