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Do old oily beans clog even the best grinders?
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Nettaiya
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Joined: 21 Aug 2012
Posts: 9
Location: WashDC
Expertise: I love coffee

Posted Sun Sep 23, 2012, 1:23pm
Subject: Do old oily beans clog even the best grinders?
 

I was helping my friend break in his new Compak K8, because we read on the forums that new burrs need a bit of seasoning. We bought 4lbs the cheapest beans from Costco (even though labeled as "medium" roast they were really dark and oily). These were roasted about two months ago.

The chute kept clogging but would push the grinds out. After maybe only 1/2 a pound the grinder just stopped grinding. Opening the burr set revealed that the coffee had completely cased over the notches in the burrs, basically caked in and making it a smooth surface unable to grind beans.

We had to take a flat head screw driver and toothpicks and very carefully poke out all the coffee that was caked into the burrs. We ran some grindz through and tried again, but it seized up again with the same results.

The grinder works fine with fresh roasted blends meant for espresso. Is this normal? Maybe its impossible to break in a grinder with charbucks style roasted beans?

Thanks for any tips!
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JasonBrandtLewis
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JasonBrandtLewis
Joined: 9 Dec 2005
Posts: 6,391
Location: Berkeley, CA
Expertise: I live coffee

Espresso: Elektra T1 - La Valentina -...
Grinder: Mahlkönig K30 Vario -...
Vac Pot: Yama 5-cup
Drip: CCD, Chemex
Roaster: No, no, not another...
Posted Sun Sep 23, 2012, 2:10pm
Subject: Re: Do old oily beans clog even the best grinders?
 

Dark oily beans will clog any grinder.

 
A morning without coffee is sleep . . .
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chex
Senior Member
chex
Joined: 27 Mar 2008
Posts: 68
Location: Fairview TX
Expertise: I live coffee

Espresso: Q M Silvano, Gaggia Espresso
Grinder: 2xMazzer SJs, Major, WW2 era...
Drip: Hario pourover, presses,...
Roaster: Behmor, stovetop...
Posted Mon Sep 24, 2012, 1:12am
Subject: Re: Do old oily beans clog even the best grinders?
 

omg that story reminds me of what my friend and i did back when i first got into coffee. Jon was a Starbucks employee back then (back in the days of La Marzocco Lineas and Mazzer grinders), and he picked up a Saeco burr grinder with his employee discount, as well as a 5LB bag of the infamous crap they call espresso blend. Yeah he wanted to season the burrs on his grinder; and i believe it gave up the ghost right after the first hopper full! I still remember his call to Saeco tech support, "Yeah, I only ground what I was going to use, nothing more..." :D Ahhh memories.... I'm sure your friend's Compak is ok, but yeah, i wouldn't advise using coffee that bad with it. Ugh, it just reminded me; the second mazzer i got from wayne is at my gf's place along with my gaggia. I'm horrified to look at the burrs. :/
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calblacksmith
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calblacksmith
Joined: 25 Nov 2007
Posts: 7,775
Location: Riverside, Ca, U.S.A.
Expertise: I live coffee

Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Wed Sep 26, 2012, 5:37am
Subject: Re: Do old oily beans clog even the best grinders?
 

Well Steve, those burrs WERE new, LOL!

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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