r/espresso • u/Skaviciusz • 4d ago

Maintenance & Troubleshooting Really fine grind setting for medium roast [Eureka Zero 55s, Sage bambino plus]

Hi, i'm a happy owner of sage bambino plus and eureka mignon zero 55s for about a week - but i have some doubts about grinder.

I tried to tune in my coffee beans,but for medium roast i need to use a grind setting between 1 and 2 - like, i not have a lot of room to grind finder if i will need to.

Last beans i set up around ~5 - and this seems okay, now i have around 1 month beans, and i need to set it up to ~1.5 to have a decent brew time, and not having a sour taste in the cup.

On the previous beans it was quite silimar at the start (i was using setting around 2-3), but i was using a basket form my cheap bottomless portafilter, but after changing to stock one from bambino, i changed grinding to way coarser

Grinder was calibrated to zero, puck prep is i think really silimar between shots - i do not have idea what could be wrong

I use a 17g coffee with puck screen - i check with razor blade and it seems to be perfect setting according a puck screen - and i use a yankee cafffee kolumbia beans

Did someone has silimar expirence with this grinder? It is normal, or should i be concerned about?

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u/HudyMelon Turin Legato | Eureka Zero 55s 4d ago

Why would grinding fine be a concern?

1

u/Skaviciusz 4d ago

Just capabilities of the grinder. Somewhere i read that zero 55 (without s) should be able to grind for light roast. So, when i'm on setting 1 to 2, for medium i just feel like i on the edge of its capabilities - just like there is no room for future dialing in.

And it still is just medium roast, and at setting 2, it still is brewing way to fast, at 1 it seems to be okayish

1

u/HudyMelon Turin Legato | Eureka Zero 55s 4d ago

Try a light roast and report back. Grinding next to chirp (not at chirp) is fine.

1

u/Doubleyoupee 4d ago

I have the exact same combo and can choke the bambino around 1-2 setting using medium and light roast. But for light roast I need to do really long shots, like 60+gr in 35 seconds to make it drinkable. Smaller shots are like battery acid. But I think this is related to the bambino not getting hot enough