A month on I have put another 500g straight through to season and used a lot more in daily use. Currently at 2.75kg through it.
Currently on a single origin from Square Mile, medium roast and I am grinding at 9.9-0.
However the lack of control is still there. I get
45 secs @ 9.95
34 secs @ 0.
I can’t reasonably adjust more finely than I am doing. The 0.05 is about equivalent in rotation to 0.5 on a Niche Zero.
I have now dialled the same beans in on the Niche and get 3-4 seconds of shot time difference on a 0.5 change.
I have complained to Kobi Deva again ( I boxed up the grinder yesterday as fed up with it) and their response was to say that I need to use RPM to adjust the grind more precisely than the burrs.
My understanding was that speed had more of an impact to the grinds than just adjust the particle size, but disregarding that, should an £800 grinder, regardless of whether it offers adjustable RPM, be able to grind more precisely than in 10 second intervals?
If their expectation is that I have to use RPM to get a 38 second shot time, does anyone know whether I need to grind faster or slower? Currently at 700rpm as somewhere in the middle. It was even worse dialling in at 1200rpm for espresso.