For completeness, I gathered that tidbit from the huge thread about the Robur-E with burrs that looked okay, but performed dismally.erics wrote:Italmill has supplied burr sets to Mazzer in the past - at least Roeland has said or implied that in posts to James Hoffman's blog several years ago and I obviously defer to Roeland on that one.
Mazzer Robur with new burrs
I can't remember where I got Italmill from, but from my understanding, there are very few grinder burr mfg's around.
One would say that yes, but from my understanding, there has been very little advancements made over the years in grinder burr technology. 50 years ago, big conical grinders were the best. And that is still true now. I, as an end user see very little of all the supposed engineering efforts. Also, despite the apparently dodgy QC, there was a neglegible difference between the various 68mm grinders in the TGP. There is also very little talk here (save for the 'grinder burr seasoning thread') about burrs not performing as expected. Everybody seems to be happy as a clam with K10's and Nino's, while those burrs look as good as the Italmill burrs.erics wrote: I would say that any one of these three knows stuff about burrs that the other two would pay dearly for and we, the end users, are reaping the benefits of these inquisitive minds.
Poor Grinder Burr Manufacturer QC
Comparisons between Compak K10 68mm & Mazzer Robur 71mm burrs [photos]
What's more, most flat burrs have holes drilled in them to mount them to the burr carriers. At first glance, you'd guess that that ruins a burr, but somehow it is possible to make a passable espresso with them.
I still think burrs are shrouded in more mystery than strictly necessary.