Posted Wed Jun 21, 2006, 5:35am Subject: Gaggia Grinder problem
Sorry I've searched and haven't found the answer... Excuse the newbieness to this forum...
I have a Coffee Gaggia and Gaggia grinder that was given to me about 3 years ago that I've dabbled with and upon MUCH experimenting have pulled some pretty decent shots. I always used fresh roasted (within 2 weeks) and do careful measuring. Blind shots to warm portofilter etc.
However, about a few months ago.. I just can't seem to get the grind fine enough on finest setting (even with lot and lots of tamping pressure) to not pull a shot too fast. It starts to drip faster than previously and goes blond sometimes within 5-10 seconds. Sometimes with extreme pressure I can get a subpar pour in 18-20 secs.
This setting used to completely clog the machine. Now pours too fast. I suspect the grinder, not the machine but what do I know?!?!?!?
I think this is related to when I tried to clean the grinder with white rice... I think that was a bad idea. I may have worn down or damaged the grinder.
I'm in Cleveland and don't trust the average coffee fixer here as Cleveland is not by any stretch an informed coffee town. Any recomendations on a repair person or place that will REALLY Do It right to repair this grinder and/or machine.???
shadow745 Senior Member Joined: 17 Aug 2005 Posts: 102 Location: NC Expertise: I live coffee
Espresso: CapressoBAR 351 Grinder: Capresso Infinity Conical... Vac Pot: Not Strong Enough!!! Drip: Not Strong Enough!!! Roaster: Not CoffeeGeeky Enough,...
Posted Wed Jun 21, 2006, 5:55am Subject: Re: Gaggia Grinder problem
What Gaggia grinder is it? Model #? I don't want to make you sound like a newbie, but have you given it a thorough cleaning lately? That can make all the difference in the world. Could be the burrs need to be replaced, if that model allows. Later!
Posted Wed Jun 21, 2006, 6:45am Subject: Re: Gaggia Grinder problem
Shadow, Thanks and don't worry about referring to me as a newbie.. with espresso, the more I know the less I know...
the bottom the grinder says MDF under "modello".
How often to you clean a grinder. I use it on average 4-5 times a week and cleaned it about 2 months ago with Rice.. I think that's when the problem started. I should have known better and ordered a "proper" cleaner.
If this model can be repaired do you have any suggestions as to where to send it?
Posted Wed Jun 21, 2006, 7:36am Subject: Re: Gaggia Grinder problem
Sounds like the burrs are worn out or the settings are slipping from the set screws loosening. There are two screws that hold the upper burr assembly to the plastic ring that has the numbered settings on it, and if those loosen it's possible for the settings to change I guess. That's less likely than worn out burrs, but you could probably fix either one on your own if you're handy with tools and this kind of this. New burrs for the MDF are under $30 .
mcKoffee Senior Member Joined: 29 Dec 2001 Posts: 868 Location: Vancouver WA USA Expertise: I live coffee
Espresso: Hm Vesuvius Wk 3gr Cyncra,... Grinder: Hm Major Wk M7D, EK43,... Vac Pot: Gold Royal Balance Drip: When it rains...Aero,... Roaster: USRC3k,CCR HT, Behmor, Cafe...
Posted Wed Jun 21, 2006, 10:28am Subject: Re: Gaggia Grinder problem
Did you use Minute Rice? (or similar brand par-cooked rice) Minute Rice is softer than a roasted coffee bean, test for yourself! I've been using it for years for regular between full break down cleanings. (More or less regualr, every week or so) Have compared it to Grindz. Minute Rice cleans equally as well as Grindz IMO and with less dust.
That said you've been using the grinder for 3 years, highly likely it's time for burr replacement. The first time I replaced Rocky's burrs was at about 1&1/2 years, probably 100# or so ground everything from Press to ristretto fine. I noticed a definite improvement in the cup. Did the next burr replacement 14 months later. But dull burrs possibly not the culprit since decline in grind quality is gradual and therefore usually not really noticed until comparing to grind with sharp burrs. Then again they may have finally dulled to the point that your symptoms of not being able to grind fine enough manifested. But with dull burrs the problem isn't just coarseness of grind, the grind becomes more uneven because the beans become more crushed rather than shaved.
Posted Wed Jun 21, 2006, 10:42am Subject: Re: Gaggia Grinder problem
Whole Latte Love is one place I've seen that sells the MDF burrs and they also mention a toll-free number if you need assistance in replacing them. As far as a manual I'm not sure if one exists or even if the set comes with instructions. Maybe just a cleaning or adjustment would help and save you from buying new burrs, but when you get to the lowest setting and that's not fine enough that would be one thing to check out.
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