Mahlkönig · Flat burrEK43S
The shop-counter version of coffee's most influential bulk grinder: same 98mm flat burrs and 1300W motor as the full EK43, just shorter so it fits under a cabinet. Built for cafes grinding retail bags and pour-over by the pound, and adopted by plenty of home fanatics who don't mind the footprint.
The short version
This is a commercial bulk grinder that happens to also do excellent espresso once you accept the workflow tax of switching ranges and living with meaningful retention.
Buy it for the burrs and throughput, not for a tidy single-dose experience.
Why people buy it
- Massive 98mm flat burrs and a 1300W motor deliver industry-benchmark particle uniformity at real cafe speed
- Genuinely all-round: the same machine covers Turkish, espresso, filter, batch brew and cupping with one stepless dial
Why they don’t
- Factory alignment is inconsistent, so getting the best out of it often means DIY shimming/sanding or a paid alignment service
The full tally
- Massive 98mm flat burrs and a 1300W motor deliver industry-benchmark particle uniformity at real cafe speed
- Genuinely all-round: the same machine covers Turkish, espresso, filter, batch brew and cupping with one stepless dial
- Commercial-grade build that holds up to daily high-volume service for years
- Compact-for-its-class body fits under counters where the full-size EK43 cannot
- Factory alignment is inconsistent, so getting the best out of it often means DIY shimming/sanding or a paid alignment service
- Large step between grind ranges makes rapid switching between espresso and filter a genuine workflow chore
- Still a large, heavy, loud commercial appliance even in the shortened S body, and retention is not near-zero
What the community knows
Years of owner threads, distilled.
Professional-lineage flat burr with legendary consistency and 40+ year parts pedigree; community respects the track record but acknowledges steep QC variance, burr-alignment sensitivity, and the real learning curve that makes this a prosumer commitment rather than a…
Ecosystem
mods, guides, and community know-how around it
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 owners say it requires the grinder to match the espresso machine investment, not replace it.
Known weak points — Burr alignment drift requiring recalibration; bearing wear on high-use machines; variable QC on newer units relative to vintage models
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
- do-anything5
- Built to last
- heirloom5
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
- You pay for this one
- 5% of grinders this capable cost more
- Top quarter for build
- sturdier than 89% 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 chasing single-dose home convenience typically move to a Niche Zero or similar conical for less bench presence and near-zero retention, trading away some of the EK's clarity and throughput. Those chasing even more consistent burrs on the same platform swap in SSP burrs, though owner opinions on whether that actually improves flavor are mixed.
The full spec sheet
- Class
- Premium
- Burrs
- 98mm flat
- Drive
- Electric
- Adjustment
- Stepless
- Clarity lean
- Clarity & sparkle
- Espresso suitability
- 4/5
- Brew versatility
- 5/5
- Single dosing
- Yes
- Hopper
- 800 g
- Burr-swap scene
- Documented
- Workflow demand
- 3/5
- Maintenance
- 3/5
- Noise
- 4/5
- Build longevity
- 5/5
- Dimensions
- 23 × 41 × 68 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. These burrs lean bright — washed single-origins with real acidity are where they earn their price.
Pick your coffee — any of these dials in beautifully here:
Sergio - Brazillian Fazenda Joia Rara Aerobic FermentedSCA 88Medium-light · Cerrado Mineiro · Aerobic FermentedHoney · OrangeEnough brightness to show what this gear can separate.CA$29.18 · roasted to order
Honeycrest - Costa Rican Volcán AzulSCA 87Medium-light · West Valley · Red HoneyRaisins · Maple SyrupEnough brightness to show what this gear can separate.CA$19.50 · roasted to order
Wild Ember - Ethiopian Buno Dambi UddoSCA 92Medium roast · Odo Shakiso, Guji Zone, Oromia · NaturalBlueberry · MarmaladeEnough brightness to show what this gear can separate.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
Is the EK43S good for espresso at home?
Yes, but it is oversized and loud for a home kitchen. It delivers excellent particle uniformity for espresso, though many owners still shim or sand-align the burrs and deal with a coarse-to-fine range that is wide enough to make quick method switching fiddly.
How is the EK43S different from the full-size EK43?
It uses the same 98mm burrs and 1300W motor, just in a shorter body with a lower spout, trading roughly four inches of height for reduced clearance under a full 5 lb bag.
Does the EK43S need burr alignment out of the box?
Owner reports are mixed. Some run it stock without issue, others say factory alignment is inconsistent enough to warrant a paid shimming/sanding service or aftermarket SSP burrs.
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
Ditting
804 Lab Sweet
A Swiss single-dose lab/shop grinder built around 80mm cast-steel burrs tuned for roundness over sharpness — the burr set that put the word sweet into grinder marketing. Discontinued and replaced by the 807 Lab Sweet, but still floating around used and in cupping labs.
CA$3,800–4,300 · US$2,895–3,200
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