Give Steve at Hasbean a call. He'll be very honest if they're not original and customer service at Hasbean is outstanding

ordered from Hasbean - they are original Rancilio - cheers

Got to say - I'm not that impressed with the finish of the new burrs...

Not what I'd call precision engineering...

Randy G. wrote:The outer edge (with the triangular flat sections) is where the "real" grinding takes place

So why does it matter how 'sharp' the blade section is then? If the beans are just getting pounded up then spun out the side, surely it doesn't really matter?

I fitted the new ones purely because I couldn't be arsed sending yet another set back...

Well - the coffee tastes good

I can't tell any difference in grind quality or speed. I suppose I've got a spare set of burrs in case these ones wear down in the next 20 years

I bought a used Rocky and after a bit of time I got frustrated because I was getting a huge amount of cracked coffee that spurted all over the place. It was pretty frustrating to be certain. The grinder itself also got incredibly packed with coffee grounds and I had to open it up.

Basically the grind was not good enough so I had to tight the setting down to practically zero. So basically everything was been extruded through the grinder blades instead of broken up evenly. Which led to issues with everything getting impacted inside the grinder.

All of those things cleared up after I got new burrs.

I think with sharp burrs the coffee gets kind of pulled through as it gets sequentially smaller and out the other side. But with dull ones you need a lot more push from the beans behind it to push it into the teeth and it just doesn't work the same way. Besides, go on ebay, they are cheap.