Mazzer · Flat burrMini G
A hopper-fed 64mm flat burr grinder that bolts a built-in load-cell scale onto the classic Mazzer Mini body, so it doses by weight instead of time or a doser arm.
The short version
This is the old bulletproof Mazzer Mini shape with a scale grafted in, and it does exactly what it promises: same dose in, same dose out, shift after shift.
Accept the roughly 8-gram hopper retention and the fact you are buying a light-commercial workhorse, not a boutique single-dose showpiece.
Why people buy it
- Grind-by-weight accuracy to about 0.1g even with vibration on a busy counter, verified independently at roughly that spread by reviewers
- Die-cast aluminum body and asynchronous motor built to the same durability standard as the decades-old original Mini
Why they don’t
- About 8 grams of retention when run as a hopper grinder, which is a real workflow cost if you switch beans often
The full tally
- Grind-by-weight accuracy to about 0.1g even with vibration on a busy counter, verified independently at roughly that spread by reviewers
- Die-cast aluminum body and asynchronous motor built to the same durability standard as the decades-old original Mini
- Automatically holds the programmed dose weight when you change the grind setting, so you are not re-weighing after every adjustment
- Hands-free activation via portafilter or the included magnetic dosing cup, with an adjustable fork to center the stream in different basket sizes
- About 8 grams of retention when run as a hopper grinder, which is a real workflow cost if you switch beans often
- 64mm burrs and a single 350W motor sit at the smaller end of what is considered commercial-duty, capping it around light-commercial volume (roughly 1kg/day recommended)
- Mazzer explicitly discourages third-party burr swaps, so upgrade options are limited to Mazzer's own 233M and K202P sets
What the community knows
Years of owner threads, distilled — strongly recommended.
The classic commercial-derived workhorse — built to outlive everything around it.
Reliability
shows up every morning, year after year
Built to last
years before you outgrow or replace it
Parts & serviceability
parts and repairs — you are never stranded
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 prospective owners ask whether the grind quality justifies the price against Eureka Mignon Notte or used commercial burr sets — the conversation frames it as a durability buy, not a performance breakthrough.
Known weak points — Brush wear on older models (documented in Home-Barista threads); motor longevity documented as excellent with proper maintenance; no widespread catastrophic failure pattern reported.
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
- reference4.5
- Versatility
- narrow2.5
- Built to last
- heirloom4.5
Position in the market
Every dot is a rival, measured the same way. The gold one is this.
- Upper half for espresso suitability
- a higher ceiling than 112 of the 154 grinders we’ve measured
- You pay for this one
- 44% of grinders this capable cost more
- Upper half for build
- sturdier than 69% 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 single-dosing with near-zero retention typically look at the Mazzer Philos or a Niche Zero instead; those who outgrow the Mini G's light-commercial ceiling move up to the Mazzer Kony or a full-size commercial GbW grinder like the E65/E80.
The full spec sheet
- Class
- Midrange
- Burrs
- 64mm flat
- Drive
- Electric
- Adjustment
- Stepless
- Clarity lean
- Syrup & body
- Espresso suitability
- 4.5/5
- Brew versatility
- 2.5/5
- Retention
- ~8 g
- Single dosing
- No
- Hopper
- 600 g
- Workflow demand
- 1.5/5
- Maintenance
- 2.5/5
- Noise
- 3/5
- Build longevity
- 4.5/5
Before it arrives
What completes this grinder — the faded pieces can wait.
Hover any piece for its why.
- 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. These burrs pull syrup — naturals and classic medium roasts play straight into their character.
Pick your coffee — any of these dials in beautifully here:
Highland Elixir - Papua New Guinean Sigri PlantationSCA 86Medium-dark · Wahgi Valley, Western Highlands · WashedBright Citrus · Caramel SweetnessSyrup and body, matched to these burrs.CA$22.43 · roasted to order
Lavabloom - Indonesian Sumatra MandhelingMedium-dark · Mount Leuser, Sumatra · Wet Hulled (Giling Basah)Dark Earth · Bittersweet ChocolateSyrup and body, matched to these burrs.CA$19.02 · roasted to order
Wild Ember - Ethiopian Buno Dambi UddoSCA 92Medium roast · Odo Shakiso, Guji Zone, Oromia · NaturalBlueberry · MarmaladeSyrup and body, matched to these burrs.CA$26.83 · 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
How much retention does the Mazzer Mini G have?
Used as a hopper grinder with the hopper full, retention is about 8 grams of coffee remaining in the grinding chamber and chute; in single-dose mode after the first few doses it drops to roughly 0.1 gram.
Can I put third-party burrs in the Mini G?
Mazzer advises against it. The only burrs it recommends for this model are its own 233M bearing-steel set and the optional K202P set.
How accurate is the grind-by-weight dosing?
Mazzer rates it at about plus or minus 0.1g, and independent testing by reviewers found doses landing within roughly a tenth of a gram even with counter vibration.
Worth comparing
Kafatek
Monolith Flat (Titan SDRM)
A Seattle-machined single-dose flat burr grinder built around 75-80mm in-house Shuriken burrs. This is the boutique end-game grinder people save up for and then stop shopping.
US$2,650
Option-O
Lagom P80
An 80mm flat-burr single-doser from the Australian outfit behind the P64, built around new Mizen 80OM burrs with an integrated pre-crusher for juicy, high-clarity cups across espresso and filter.
CA$2,300–2,495 · US$1,595–1,800
Weber Workshops
Key Mk.2
A single-dose home espresso grinder built around a massive 83mm Mazzer conical burr set squeezed into a footprint no bigger than grinders with far smaller burrs. It is a design-forward, fussy-in-the-details machine for people who already know what channeling tastes like.
CA$2,050–2,800 · US$1,995–2,139
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