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New burrs needed on Gaggia MDF?

Postby workinghard on Sat Feb 13, 2010 2:11 am

Well, I think I got a good deal. I picked up a Gaggia Classic, MDF, and Rancilio 2 drawer base for 241. I am VERY excited about it, though the Gaggia needs some cleaning. I worked into the screen and it wasnt clogged hardly at all, but it was pretty dirty and the other parts were pretty much black with dirt. Cleaned up ok, but I havent got the citric acid for the group or any other proper cleaners yet, or any of the decal for the tank.

Now, on to the grinder. The guy said that he got it as a wedding present back in 05 (however, the Gaggia says it was made in 02/2003, it has the double spout filter and black pan wand...maybe he was lying) and only used it a few times a month for the first year, and then stopped. So I was hoping the burrs might not need to be replaced. I cleaned it out, vacuumed, washed what I could, did all of that.

The top burrs looked pretty good to my eyes, but I thought I spotted a few chips some of the bottom burrs. I will have to wait to get some good beans and make some shots and see how it compares with my previous MDF experiences, but I thought somebody with more knowledge might be able to make an educated guess based on the visual evaluation of the burrs. They still feel somewhat sharp, but I have never opened up a new one to be able to compare it.

Anyway, enough of me talking, you will no doubt here more from me than you want in the future now ;) Here are the pics. These were taken post brushing with an old toothbrush, but pre vacuuming and final cleaning.
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Postby sweaner on Sat Feb 13, 2010 5:18 pm

My suggestion is to just get new burrs. You got a great deal.
Scott
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Man does not live by coffee alone...we need beer too.
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Postby HB on Sun Feb 14, 2010 2:16 pm

While I agree it's rarely a mistake to replace the burrs, How to know grinder burrs are worn out? offers quick and easy "feel" tests for sharpness. It's difficult to judge from the photos with certainty, but the edges look like they still have the flashing from the original machining, which is consistent with the seller's claim that the grinder was barely broken in.
Dan Kehn
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