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
Etherea - Ethiopian YirgacheffeSCA 88Medium roast · NaturalJasmine · BergamotSyrup and body, matched to these burrs.CA$24.16 · roasted to orderWhole bean coffee, with the roast date on each bag.
Prefer regular deliveries? RoastPlan is RoastAroma’s coffee subscription. Choose your coffees and their available options, then set deliveries every 1–6 weeks.
One-time RoastAroma orders are roasted to order in Ajax, Ontario and ship 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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