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Are my burrs damaged?
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Discussions > Espresso > Grinders -... > Are my burrs...  
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globetrotter
Senior Member


Joined: 19 Sep 2013
Posts: 6
Location: San Diego
Expertise: I love coffee

Posted Sat May 3, 2014, 9:54pm
Subject: Are my burrs damaged?
 

I can't seem to get a fine enough grind on my Gaggia MDF anymore. I've had it for about a year now, and bought new. It the last few weeks I've noticed that my shots are brewing too fast, meaning I need a finer grind. I use to use the settings between 2-4 depending on the bean to get a perfect shot. Now I have to have it one 1, and it's still not fine enough.

I re-calibrated the burrs and took it all apart by watching a u-tube tutorial. After "1", the burrs start to touch eachother, so I know the "1" is the closest I can get without damaging the burrs. Is there anything I can do, or do they need to be replaced? I thought they would last longer than a year. I only make 2 shots a day.
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NobbyR
Senior Member
NobbyR
Joined: 10 Jul 2011
Posts: 2,046
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 Sun May 4, 2014, 2:01am
Subject: Re: Are my burrs damaged?
 

After a year of average use the burrs shouldn't be worn yet. You can usually grind 200 to 600 kg of coffee, depending on the grinder, before you'll have to replace them. So if you grind 2 kg per month, for example, you would have to replace the burrs after 8 to 25 years, unless they get damaged for some reason.

Is there anything you have changed in your set up or preparation recently? What kind of coffee beans do you use? How fresh are they?

 
***
"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)
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moosepucky
Senior Member
moosepucky
Joined: 6 Jun 2009
Posts: 154
Location: USA
Expertise: I live coffee

Espresso: Pasquini Livia 90 auto
Grinder: Super Jolly - Forte BG -...
Vac Pot: Cona - Santos
Drip: Bodum - Chemex - Hario -...
Roaster: Hottop KN-8828-B
Posted Sun May 4, 2014, 5:22am
Subject: Re: Are my burrs damaged?
 

Have you tried using different beans?  Different roast? Different batch of beans?  Do all beans come through too coarse?

Eliminate the product as the possible cause before looking at the machine
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Burner0000
Senior Member


Joined: 28 Jul 2011
Posts: 1,086
Location: Cambridge, Ontario Canada
Expertise: Professional

Espresso: Rancilio Silvia, VFA Expres...
Grinder: Macap MX/VFA N1464/Kyocera...
Drip: Manual Drip, French Press
Roaster: Behmor 1600 / Sonofresco
Posted Sun May 4, 2014, 7:14am
Subject: Re: Are my burrs damaged?
 

Take off the burrs and see if you can find any damage.  Also run your finger nail across the sharp edge of the teeth.  You should get a light scratch on your nail.  I went crazy with the same problem with my grinder and sure enough the burrs indeed were damaged and I just needed new ones.
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