OutIn Fino Molinillo de Café Eléctrico Portátil

I’m an experienced barista who uses specialty coffee daily and already own an OutIn Nano. I bought the OutIn Fino specifically to get better grind consistency, more precise adjustment, and a grinder that feels serious enough for espresso while still being portable.
Key specs and my measured performance per dose
Grind stages: 28 precise steps (official spec).
Mating between stages: each step is clearly distinct and repeatable.
Hopper capacity: up to 25 g (official spec).
Weight: 690 g (official spec).
Mating dose I use: 19 g for espresso.
For my testing, I ran multiple 19 g doses at different settings and recorded the following:
Espresso setting around step 6–8:
Time: 12–14 s for 19 g in (vs the Nano, which often takes 15–18 s and feels less consistent).
Output: 38 g espresso in 26–28 s at 1:2 ratio, clean flow, no channeling visible.
Retention: when I purge with a small 3 g “sacrifice” dose, I see about 0.2–0.3 g retained, which is very low compared to the Nano’s ~0.5–0.8 g.
Pour-over (step 14–16):
Time: 18–20 s for 19 g.
Grind appearance: more uniform, fewer obviously fine particles than the Nano.
Extraction: smoother sweetness, less harshness at the end of the cup.
French press (step 22–24):
Time: 22–24 s for 19 g.
Grind: visibly coarser, with fewer fines than the Nano at similar coarse settings.
Grind consistency and cup quality
The Fino produces a noticeably more uniform particle distribution than the Nano. In espresso, I can dial in faster and hold the setting longer without major taste drift.
Fines are present but controlled, and clumping is less obvious. This leads to a cleaner cup with better clarity and less muddy bitterness.
Compared to the Nano, the Fino gives me more predictable flow, less need to re-dial after a few shots, and a more consistent mouthfeel.
Speed, battery, and usability
Charging time: about 1 hour to full (official spec).
Battery life: the spec says up to 18 espresso shots per charge; in my usage, I’ve done 15–17 shots of 19 g before the indicator dropped noticeably, which is very close to the claim.
Real-world autonomy for me: with 2–3 espresso shots per day, I charge roughly once every 5–7 days.
The external grind selector and retractable hopper make it easy to set and repeat my preferred espresso setting without guessing.
What the Fino does better than the Nano for an exacting barista
Faster, more stable espresso dial-in with less variation between shots.
Lower retention, so less waste and less flavor carryover between doses.
Better particle distribution, which directly improves clarity and sweetness in the cup.
A more “ Serious tool” feel, not just a cute portable gadget.
Trade-offs
Price is high compared to the Nano and many other portable grinders.
It is still a portable unit, so it won’t match the speed or capacity of a dedicated home espresso grinder for heavy daily use.
For very high-volume shop work, a larger, corded grinder is still preferable.
Bottom line
For an exacting barista who values portability but refuses to compromise too much on espresso quality, the OutIn Fino is one of the best portable electric grinders I’ve used. It delivers faster dial-in, more consistent shots, and noticeably cleaner cups than the OutIn Nano, with very low retention and solid battery life. If you’re upgrading from the Nano and want a real espresso-capable portable grinder, the Fino is a strong and justified choice.

Muchas felicidades el producto es genial , y estoy feliz y seguro de mi elección y decisión gracias a ustedes

Ideal para usar en casa, cumple perfectamente.

La batería dura para 3 cafés y tarda mucho en volver a cargar.