Flat Burr

Fiorenzato F4E Nano:
Espresso Grind Settings & Guide

The Fiorenzato F4E Nano is an electric flat burr grinder with 58mm burrs. It features stepless adjustment and is designed for both espresso and filter use. With low retention (~0.3g) and a single-dose-friendly design, it's a popular choice from Fiorenzato.

Espresso CapableSingle DoseLow Retention

At a glance

Fiorenzato F4E Nano specs

Burr Type

Flat 58mm

Adjustment

Stepless

Retention

Low (~0.3g)

Single Dose Friendly

Yes

Espresso Capable

Yes

Primary Use

Espresso & Filter

Power

Electric

Espresso starting range

Where to start for espresso

No numbered scale. Stepless micro-step dial. Find touch point, open small amount for espresso. Proprietary mechanism gives fine resolution. Do NOT suggest specific numbers.

the stepless micrometric adjustment dial (very small turns — no fixed scale)

Starting point only — adjust based on your beans, roast level, dose, and target yield.

Quirks & tips

Proprietary micro-step mechanism for very fine adjustment resolution

Low retention — single-dose friendly

Italian-manufactured flat burr quality

Detailed notes

58mm Italian flat burr, stepless. Very low retention. Single-dose friendly. Proprietary fine-step mechanism gives good precision. Espresso and filter capable. Small turns are significant at espresso fineness.

Dialing in with the Fiorenzato F4E Nano? Grindset speaks your grinder's language.

Tell Grindset which grinder you use and it gives you adjustment advice in Fiorenzato-specific terms — dial numbers, not generic "grind finer" advice.

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