Eureka · Flat burrMignon Zero
A single-dose flat-burr espresso grinder from Florence with near-zero retention, stepless micrometric adjustment, and whisper-quiet operation at a midrange price point.
The short version
The Mignon Zero earns its reputation as a strong midrange single-dose espresso grinder: 55mm flat burrs, 0.2g retention, and genuine quiet operation in an all-metal body.
What you accept is no grind memory or digital dosing — you weigh every shot yourself, and setting repeatability requires careful note-taking.
Why people buy it
- Near-zero retention (~0.2g) via rubber bellows blow-up system keeps inter-dose contamination negligible when switching coffees
- Whisper-quiet operation at 51 dB — well below typical espresso grinders — thanks to Eureka's anti-vibration solution and insulated grinding chamber
Why they don’t
- No grind-by-weight, timer, or dose memory — workflow depends entirely on an external scale
The full tally
- Near-zero retention (~0.2g) via rubber bellows blow-up system keeps inter-dose contamination negligible when switching coffees
- Whisper-quiet operation at 51 dB — well below typical espresso grinders — thanks to Eureka's anti-vibration solution and insulated grinding chamber
- Stepless micrometric adjustment (patented lower-burr repositioning) allows infinitely fine espresso dial-in without losing setting during burr changes
- All-aluminum and hardened-steel construction with a 10-year motor warranty reflects genuine build longevity for a home grinder
- No grind-by-weight, timer, or dose memory — workflow depends entirely on an external scale
- Stepless collar has no index markings, making it difficult to return to a previous setting after switching grind size
- 55mm burrs grind at ~1.5 g/s for espresso, which is adequate but slower than larger-burred single-dose competitors
What the community knows
Years of owner threads, distilled — well regarded.
Quiet, well-built flat-burr workhorse that delivers consistency and beat-per-dollar value, but the stepless dial frustrates repeatability enough that the community treats it as a learning platform to mod rather than a grab-and-forget default—overshadowed by Niche Zero's…
Value
price-to-performance the community respects
Reliability
shows up every morning, year after year
Built to last
years before you outgrow or replace it
All 9 community measures
price-to-performance the community respects
shows up every morning, year after year
parts and repairs — you are never stranded
mods, guides, and community know-how around it
kind to first-timers
years before you outgrow or replace it
how far the cup can go, per dollar
speed and simplicity, day to day
Worth knowing before you buy — Most owners say stepless dial frustration pushes them to dial-in once and stick, or mod the grinder—defeating the "set and forget" promise; the real win is the quiet motor and build quality, not the convenience of the dial itself.
Known weak points — Stepless dial wear and micro-adjustments drift reported by owners attempting fine tuning; no catastrophic mechanical failures documented in available record.
“This is a very well made and consistent grinder. Gets your grind right, with a very quiet motor.”
“Nice fluffy clump free grind. The grinder works great, nice work flow much quieter than the Baratza Sette I have been using.”
The measurements
Scored 0–5 on the same rubric as everything on file — the words matter more than the numbers.
The measurements
0–5, one rubric- Espresso
- dialed4
- Versatility
- single-purpose2
- Built to last
- durable4
Position in the market
Every dot is a rival, measured the same way. The gold one is this.
- Lower half for espresso suitability
- a higher ceiling than 58 of the 154 grinders we’ve measured
- A value pick at this level
- 83% of grinders this capable cost more
- Lower half for build
- sturdier than 37% of the field, by the community’s own record
Every dot is a grinder measured on the same rubric. See the whole market
Living with it
The part spec sheets skip: counter space, upkeep, and what owners learn later.
The honest note — Owners who want numeric grind position memory, built-in gravimetric dosing, or larger (64–65mm+) burr sets for filter versatility typically move toward the Niche Zero, DF64 Gen 2, or the Eureka Mignon Zero 65 AP. Those chasing shot quality above all typically arrive at a single-dose premium tier (Weber Key, Lagom Mini).
The full spec sheet
- Class
- Midrange
- Burrs
- flat
- Drive
- Electric
- Clarity lean
- Balanced
- Espresso suitability
- 4/5
- Brew versatility
- 2/5
- Retention
- ~0.2 g
- Single dosing
- Yes
- Hopper
- 45 g
- Workflow demand
- 3/5
- Maintenance
- 2/5
- Noise
- 1/5
- Build longevity
- 4/5
- Dimensions
- 12 × 14 × 34.5 cm
Before it arrives
What completes this grinder — the faded pieces can wait.
Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Coffee scale with timer — Espresso is a ratio. A 0.1g scale with a built-in timer is the single biggest consistency upgrade for any manual machine.
- Dosing cup — Pairs with single-dose grinding — grind into the cup, swirl, and transfer to the portafilter cleanly.
- Grinder cleaning kit — Brushes and grinder tablets keep retention and stale grounds in check.
Feed it right
Week one is dial-in — and stale beans will lose it.
Coffee more than a few weeks past roast won’t extract predictably, and a new grinder gets blamed for it. A balanced burr set: rotate origins freely — it will keep up.
Pick your coffee — any of these dials in beautifully here:
Wild Ember - Ethiopian Buno Dambi UddoSCA 92Medium roast · Odo Shakiso, Guji Zone, Oromia · NaturalBlueberry · MarmaladeSteady and repeatable — right for this setup’s lane.CA$26.83 · roasted to order
Etherea - Ethiopian YirgacheffeSCA 88Medium roast · NaturalJasmine · BergamotSteady and repeatable — right for this setup’s lane.CA$24.16 · roasted to order
Sergio - Brazillian Fazenda Joia Rara Aerobic FermentedSCA 88Medium-light · Cerrado Mineiro · Aerobic FermentedHoney · OrangeSteady and repeatable — right for this setup’s lane.CA$29.18 · roasted to orderWhole bean, dated, ready for your burrs the week it lands.
Roasted to order, daily, in Ajax, Ontario · ships Canada-wide. We’re the roastery behind this database — measuring the machines is how we make sure the coffee gets a fair shot.
On film
How it runs on camera, from around the community.
Common questions
Does the Eureka Mignon Zero work for filter coffee as well as espresso?
The 55mm flat burrs in the base Zero are optimized for espresso. Coarser filter settings are technically reachable but the stepless collar offers very fine resolution, which makes jumping to French press or V60 ranges clumsier than on a purpose-built all-purpose grinder. The Mignon Zero 65 AP variant uses a larger 65mm burr with an all-purpose cutting geometry and a wider-throw grind dial specifically to address this.
How does the bellows system work and how much retention does it leave?
A rubber bellows is integrated into the single-dose hopper. After grinding, you squeeze it to push a burst of air through the chute, expelling residual grounds into the dosing cup. Eureka quotes approximately 0.2g of retention, which is among the lowest in its price class and makes it genuinely practical for switching coffees dose to dose.
Is the Mignon Zero quiet enough for an apartment or early morning use?
Yes. Eureka's anti-vibration construction and insulated grinding chamber bring operational noise down to approximately 51 dB — roughly the level of a quiet conversation. The brand claims a 20 dB reduction versus conventional grinders in the same class.
Can I return to a previous grind setting easily?
This is the Zero's main workflow limitation. The stepless collar has no numbered positions or digital memory. Experienced users mark settings with tape or a permanent marker, but there is no click-stop or display to return to a dial-in. If repeatable setting switching matters to you, a grinder with numbered positions (e.g., Niche Zero) is a better fit.
Worth comparing
Turin / MiiCoffee
DF54
A 54mm flat-burr single-dose electric grinder that brings near-zero retention, stepless adjustment, and a plasma ionizer to a price bracket that previously offered only conical burrs — distributed under multiple private labels including Turin, MiiCoffee, and others.
US$229–249
Baratza
Encore ESP
The Encore ESP is Baratza's espresso-oriented reimagining of their classic Encore, fitting 40mm M2 conical burrs and a dual-resolution stepped collar into a sub-$200 package that handles both espresso and filter from one grinder.
US$199–200 · CA$275–280
Comandante
C40 MK4
The C40 MK4 is Comandante's fourth-generation hand grinder, built in Germany around their proprietary 39 mm high-nitrogen martensitic Nitro Blade conical burrs. It covers Turkish through cold-brew with excellent particle consistency and near-zero retention, at a price that demands you actually care about what's in the cup.
US$325–360 · CA$405
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