Worn grinder burrs - can someone have a quick look?...

by **paolo973612** on Mon Mar 21, 2011 5:32 pm

Hi there.

I hastily decided to refurbish a Rancilio Kathy but the burrs look a bit worn. In the real world - how much of a difference does it really make? I was getting pretty good, consistent shots before I ripped it apart dismantled it. :shock:

Don't have a macro lens so couldn't get any close up images although links to bigger photos are included below.

Any opinions would be GREATLY appreciated.

Bigger photo 1
Bigger photo 2

Cheers
Paolo

by HB on Mon Mar 21, 2011 5:49 pm

paolo973612 wrote:...the burrs look a bit worn.

Gawd, those look like hell! Rocky burrs aren't known for their longevity. See How to know grinder burrs are worn out? for more meaningful criteria than visual inspection.

by **paolo973612** on Mon Mar 21, 2011 5:58 pm

That's what I thought :oops:

I did read that thread but I've absolutely no idea how old they are - cant be original surely :shock:

I'll get a set ordered.

cheers.

by **napierzaza** on Tue Mar 22, 2011 7:05 pm

Check eBay, I got the cheapest Rocky burrs there. I bought a used Rocky that was a year old and needed to replace the burrs. Tricky.

by **cannonfodder** on Wed Mar 23, 2011 2:07 pm

Looks like someone was chipping tree limbs with those. As a general rule, if you can see a reflection from the edge, they are dull. It should be a sharp angle, if you see a reflection or white line it is because the edge is rolled over.

by **Randy G.** on Wed Mar 23, 2011 2:25 pm

The way the edges are rolled over on the final cutting edge makes it appear that the burrs were not very hard to begin with. In any case, those burrs are only good as tailgater-repellent.

by **paolo973612** on Wed Mar 23, 2011 7:57 pm

Managed to get them off - eventually...

They are original Rancilio parts but no idea how old they are. I know nothing of the machines history but it must be about 20 years old - maybe they've been on for that long :shock:

Thanks for the feedback.

by **paolo973612** on Fri Mar 25, 2011 6:19 pm

Well - just received a set of blades from Happydonkey.co.uk. They are REALLY BAD quality... They are no sharper than the old ones I pulled out and a totally different pattern. Needless to say, they are going back!

The thing is - surely if you're going to sell non-original parts you'd at least make sure they were reasonable quality!? No conscience I guess...

So - where can I get original Rancilio blades in the UK? Any ideas?

by **P.B** on Sat Mar 26, 2011 2:45 am

Try Hasbean
http://www.hasbean.co.uk/categories/Brewing-Equipment/Rancilio/

I've had similar experiences with Happy Donkey too.

Paul

by **paolo973612** on Sat Mar 26, 2011 5:28 pm

Thanks for that - can't really see the picture that well - I wonder if they are original?

Had a reply from MyEspresso Ltd who confirmed they sell original Rancilio Burrs £36.79 - ouch...


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