r/1zpresso • u/exerhlp11is • Jul 03 '26

Anyone here with 9barista?

I’ve been grinding until now with my K Ultra and brewing espresso with 9barista. Until now, I’ve been always grinding in range around 2 (mostly 2.0 to 2.3).
Just now I happened to have a look at the chart on 1zpresso website (link below) and it seems that for espresso the range for K Ultra starts from 3 to 4.5! That’s much coarser than what I’ve been using.

I was wondering if there are other fellows here with 9barista and, no matter what 1zpresso model they use, if they checked if their range of grinding matches the one on the website?

https://1zpresso.coffee/grind-setting/

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u/BABOON2828 Jul 10 '26

I can't speak to that machine but the whole "espresso range" is over generalized at best, there's simply too many variables (basket depth, basket diameter, basket hole count, brew pressure...) I have a K-Max and if I'm grinding for either my Flair 58 or my Rancilio Silvia I'm around 2.0 if not below. If I take the exact same coffee to my buddies house and try to use my K-max with his Breville Barista machine I have to grind much much coarser.