ira wrote:Depressingly, the quality of coffee grinder burrs that's I've see is poor at best.
Well, here I am re-visiting Robur burrs again. Last I left this, 2 years ago or so, I had purchased a set of Robur burrs from Phalen and close observation upon there arrival showed this:
Needless to say I was disappointed in the lack of quality so I talked to everyone I could and sent a email to Mazzer. The next day a letter arrived apologizing and promising 2 new sets of burrs to make up for the embarrassing lack of quality. But nothing ever happened, checking with Phalen and his supplier it turned out that all the Robur burrs of that time were bad.
Flash forward to last month where I met Luca in the Mazzer booth who apologized and claimed he'd send the missing burrs as soon as he returned to Italy. I don't know if it's surprising or not, but yesterday one set of Robur burrs arrived via UPS from Italy and while they are not perfect, they are much better. The originals were vacuum sealed to a piece of Mazzer branded cardboard, the new ones are just put in a plastic bag allowing them to rattle in shipping, seems silly for a $160 set of burrs. But they look better. Here are 2 pictures of the new inner burr.
As you can see from this second picture. all is not perfect. but it at least looks like something that might actually do a good job.
If you want to know if you have the new or the old burrs, the new one's have 3 alignment holes and 2 threaded holes on the bottom along with a laser etched Mazzer logo and 0186C part number. The original burrs only had 1 alignment hole on the bottom and no markings. The other difference was the alignment of the key way. it's hard to know if they'd actually care about that, but the original key way points directly at a valley and the new key way points directly at a peak.