Andenperle Bio Espresso aus Peru, Villa RicaMild and nutty on the first sip, with almond and caramel, followed by a fine citrus note.
Start recipe: 17-18 g → 34-43 g (1:2 to 1:2.5) in 27-30 s
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hopper grinders (on-demand grinders)
Mahlkönig · Coffee grinder · Made in Germany
Mahlkönig E64 WS V4 Home GbWcoffee grinder with app control and cloud connectivity
64 mm MahlwerkFor office & home barista
Who the Mahlkönig E64 WS V4 Home GbW is made for
Grind size decides before the machine even starts.
The beans sit in the hopper, ground on demand. This is the faster way when the same variety is always running.
- 01 No scale next to itThe grinder weighs the dose itself and stops at the set weight. No reweighing, no residue in the portafilter, the same espresso in the morning as yesterday.
- 02 64 mm burrsSmaller burrs require more revolutions for the same amount. For a few drinks a day this is negligible.
What's inside
The technology that matters for espresso.
On the machine
Grinder64 mm grinder
The diameter of the grinding burrs determines how many revolutions are needed for the same amount of coffee.
BurrsSpecial steel
Flat burrs grind with two parallel rings and deliver a tight particle size distribution.
Grind sizeelectric, Disc Distance Detection
The adjustment is done by a motor instead of a manual ring.
DosingScale dosing
The grinder weighs itself and grinds until the set amount is in the portafilter.
BeansBean hopper 250 g
A large hopper means less frequent refilling.
Inside: you do not see it, but you notice it
TypeOn-Demand
The beans sit in the hopper and are ground on demand.
Speed2.0 g per second
The grinder output indicates how much ground coffee comes out per second.
LifespanGrind burrs approx. 500 kg
The manufacturer's guideline for how much coffee the burrs can handle before they should be replaced.
What matters for the grinder
What this grinder can do and where its limit lies.
The numbers from the data sheet, in the order that matters. A faster grinder does not grind better, it only grinds more.
64 mm
Large burrs, cooler grounds
The larger the burrs, the fewer revolutions are needed for the same amount of coffee. The grounds heat up less, and heat in the ground coffee costs aroma. Installed are special steel.
500 kg
How long the burrs last
Manufacturer specification for when the burrs should be replaced. Dull burrs are not noticeable by the grind appearance, but only by taste.
9 s
How long a dose takes
For 18 g of coffee, calculated from 2 g per second. For a single drink you hardly notice it: brewing and milk foam take longer than grinding.
15 × 22 cm
This is how much space it needs
These are 330 square centimeters of counter that are permanently occupied. At 39 cm height you need space above it for refilling.
2,5 kg per day
It cannot do more than that.
That would be about 130 espressos per day at 18 g per shot. The maximum performance quoted by the manufacturer, not a recommendation for everyday use. If you regularly operate in this range, schedule maintenance more frequently.
All values come from the data sheet of this device. If a specification is missing, it is not listed here.
Technical data
The data sheet, complete and without needing to ask.
The same values by which you filter and compare in the shop. Is something missing? Write to us, we'll add it.
User manual (PDF) opens the page of MahlkönigGrinder
Grinder typehopper grinders (on-demand grinders)
The beans sit in the hopper and are ground on demand. This is the faster way in everyday life, especially if the same coffee is used all the time. A full hopper, however, means that the beans at the bottom are exposed to the air for longer.
Grinder64 mm
The diameter of the grinding burrs determines how many revolutions are needed for the same amount of coffee. Larger burrs need fewer revolutions, the grind warms up less, and heat in the grind reduces aroma.
Burrs64 mm, special steel
Flat burrs grind with two parallel rings and deliver a tight particle size distribution. You do not recognize dull burrs by appearance but by the fact that the shot runs faster than usual.
Grind size adjustmentelectric, Disc Distance Detection
The adjustment is done by a motor instead of a manual ring. Settings can therefore be reproduced exactly, which saves you time in daily operations when switching varieties.
Burr lifespan500 kg
The manufacturer's guideline for how much coffee the burrs can handle before they should be replaced. You do not notice dull burrs by their appearance but because the extraction runs faster than usual at the same setting.
Dosing and performance
Dosingdose control by scale
The grinder weighs itself and grinds until the set amount is in the portafilter. That stays the same even when the bean changes or the bag gets emptier, where a time-based control would need readjusting.
Grinding capacity2.0 g/s
The grinder output indicates how much ground coffee comes out per second. For a single drink you hardly notice it, as extraction and milk determine the time. You only feel it when many drinks are made back to back.
Bean hopper250 g
A large hopper means less frequent refilling. Bear in mind that beans age in it: anything that stays in the hopper for longer than a few days loses aroma, no matter how good the grinder is.
Operation
ControlWith app control
Dimensions and energy
Width15 cm
Depth22 cm
Height39 cm
Weight5,8 kg
Motor power200 W
Use
Area of applicationoffice, home barista
Manufacturer: Mahlkönig · Hemro Manufacturing Germany GmbH, Tilsiter Strasse 144, 22047 Hamburg, www.mahlkoenig.com, [email protected]
From our roastery
The matching espresso, freshly roasted.
Three varieties that we have dialed in on exactly this machine. Start recipe included.
All coffee beans in our range are organic.
Andenperle Bio Espresso aus Peru, Villa Rica
Ätna Organic Espresso, dark roastedDark chocolate, nougat and roasted hazelnut. Full, syrupy body, dense hazelnut-brown crema, very low acidity.
Start recipe: 17-18 g in the double basket → 34-38 g in 25-28 s
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Feldberg organic coffee Colombia, Omniroast Single OriginPanela and caramel on the first sip, followed by almond and dark chocolate, plus a distinct dried fruit note and a lively, juicy acidity.
Start recipe: 17-18 g in the double basket → 36-40 g (Brew Ratio 1:2 to 1:2.3) in 28-32 s
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Beans ship free with the machine and come from the same roast week.
Useful accessories
The parts you really need
Eureka tamper adjustable 58.3 mm with oak handleAdjustable in height so that it fits the basket of your machine. Even pressure across the whole surface is what makes the extraction repeatable.
47,52 €incl. VAT.
Grinder brush for coffee grinderGround coffee stays in the grind chute and goes stale there. A quick pass with the brush after each grind is enough.
22,17 €incl. VAT.
Auswählen
Puly Grind Grinder Cleaner 10x15gCoffee oils coat the burrs and shift the grind size without you seeing it. Every few weeks, run a bag through the grinder.
16,90 €incl. VAT.
Service & warranty
You buy a machine for ten years. We'll be there.
2 years statutory warranty, handled by us
You write to us, not the manufacturer. We organize pickup, repair and return shipping.
Spare parts & maintenance
Seals, shower screens, pumps in stock. Maintenance service recommended after two years.
Installments via PayPal
* Creditworthiness required. Installment example PayPal Installments: effective annual interest rate 12,49 % p. a., fixed nominal interest rate 11,80 % p. a., term 24 months. PayPal shows terms and total costs in the next step. Only for customers resident in Germany.
Is the Mahlkönig E64 WS V4 Home GbW coffee grinder with app control and cloud connectivity suitable for filter coffee?
The Mahlkönig E64 WS V4 Home GbW coffee grinder is designed for espresso grinding and offers features such as app control and cloud connectivity. Although it targets the needs of home baristas, it is not specifically optimized for preparing filter coffee. According to various sources, however, it is versatile and could also be used for smaller quantities of filter coffee, but this may require adjusting the grind setting.
How can you identify the version (V1 / V2 / V3 / V4) of the Mahlkönig E64 WS?
Officially, the manufacturer Mahlkönig does not use designations like V3 or V4 for the E64 WS. Dealers and the coffee scene often use these to describe the internal model development. However, you can recognize the current state of the grinder by specific components and functions:
1. Discharge chute and flapper: The latest devices feature a revised version of the discharge chute. This is firmly mounted and uses an improved flapper that significantly reduces clumping and static charge of the coffee grounds.
2. Firmware updates: The newer revisions (partly referred to as V4) have OTA capability (Over-The-Air) and cloud connectivity. They can be synchronized with compatible espresso machines (e.g., Xenia) via the official app.
3. Weight & stability: Grinders of the very first generation sometimes suffered from an inaccurate scale and slight play in the components. The revised versions weigh the coffee grounds more consistently and precisely.
4. From version V2 onwards, metal flappers were installed. The metal flappers are already available as spare parts.
Model history and naming
The designations V1, V2, V3, or V4 usually come from testers (such as the coffee makers) to distinguish iterations in the software and minor hardware adjustments (like the new discharge).
There is lively discussion on Kaffee-Netz and Reddit about which batch has which firmware or fixes (such as factory-aligned grinding discs).
How does the E64 WS Home differ from the E65W GbS in terms of throughput and workflow integration?
The E64 WS Home (64 mm, Grind-by-Weight) is primarily designed for ambitious home baristas and small setups with low volume. The E65W GbS (65 mm, Grind-by-Sync) is aimed at small to medium cafés with 80–120 extractions/day and offers direct communication with the espresso machine as well as automatic grind adjustment. GbS (Grind-by-Sync) is increasingly replacing the older GbW technology in the professional sector, as it autonomously compensates for fluctuations due to bean age or humidity and reduces the need for manual adjustments. For commercial continuous operation with consistency requirements, the E65W GbS is the more robust choice; the E64 WS is suitable for prosumer applications or low-volume scenarios.
What compatibility exists between the E64 WS app control and existing barista workflows or ERP systems?
The Mahlkönig Sync App (iOS/Android) enables control, extraction analysis and automatic firmware updates for the E64 WS Home. The app is optimized for consumer/prosumer workflows, not for ERP or POS integration. Unlike GbS models (E65W, E80W), which communicate directly with professional espresso machines, the E64 WS operates as a stand-alone unit with an app interface. For B2B environments that require recipe synchronization across multiple locations, consumption logistics or HACCP documentation, the E64 WS does not provide a native interface. For commercial requirements, check the GbS platform (E65W/E80W) or contact Mahlkönig regarding API availability for custom integrations.
Is there a technical data sheet with all specifications and certifications for the Mahlkönig E64 WS V4 Home GbW?
The E64 WS Home features 64 mm burrs, Grind-by-Weight technology with an integrated scale, app control via the Mahlkönig Sync (iOS/Android) and cloud connectivity. Dimensions: 21 cm width × 48 cm depth × 34 cm height. The grinder is designed for the home barista segment (approx. 10–30 shots/day), not primarily for commercial continuous operation. A full technical data sheet with power consumption, motor specification, burr type (SSP/SSMB) and country-specific certifications (CE, UL, NSF) is available directly from the manufacturer or an authorized dealer. For B2B procurement we recommend the commercial models E65W GbS or E80W GbS with more robust motors and higher throughput.
Can I use the E64 WS for my café or my hospitality business?
No. The E64 WS is a product for the home barista. We do not recommend the E64 WS coffee grinder for commercial use. It is not designed for that. We recommend the E65 GbS as a good alternative. It has been developed for commercial use.
How does the E64 WS Home differ technically and economically from the commercial models E65W GbS and E80W GbS when procured on a comparable basis?
The E64 WS Home uses 64 mm burrs and Grind-by-Weight (GbW), whereas the E65W GbS (65 mm) and E80W GbS (80 mm) operate with Grind-by-Sync (GbS); the latter communicates directly with the espresso machine and adjusts grind settings automatically, eliminating manual fine-tuning. The E65W is sized for 80–120 shots/day, the E80W for high-volume operation (150+ shots/day). The E64 WS Home is more compact and less expensive but is not designed for continuous commercial operation: lower motor duty cycle, limited service intervals and no professional spare-parts logistics. For B2B projects with compliance and TCO considerations, E65W/E80W GbS are the correct choice — higher acquisition cost but lower downtime costs and longer service life.
Which Mahlkönig grinder is best suited for espresso?
For espresso, models with 64 mm or 65 mm burrs are ideal. The E65W GbS is currently Mahlkönig’s primary café grinder and delivers 80–120 shots per day with consistent quality. For home use the X64 SD is perfect: it grinds single portions fresh, has a 64 mm hardened steel burr set and offers stepless grind adjustment from 120 to 1,500 µm. The ground coffee is very evenly distributed, resulting in a clearer, less bitter espresso.
Which Mahlkönig grinder is suitable for Single Dose grinding (single-dosing)?
The X64 SD is specifically built for Single Dose. You load only the beans you need, it grinds them all the way through and leaves almost nothing in the grinder. This is ideal when you want to try different coffees without residues mixing. The E64 WS can also weigh out individual portions using Grind-by-Weight. Classic café grinders like the E65W have a bean hopper and are designed for continuous operation.
Which Mahlkönig grinder is suitable for home use?
The X64 SD is ideal for home use. It is compact, grinds fresh per cup and operates quietly under 65 dB. The E64 WS is the bridge between home use and a small café: more precise with Grind-by-Weight but more expensive. Both have 64 mm burrs, which are completely sufficient for espresso. Important: Mahlkönig grinders are an investment. If you previously had an inexpensive entry-level grinder you will notice the difference in taste immediately.
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Do you have any questions?
We respond to you personally, usually on the same business day.
Write to us if you are unsure about the selection. We roast ourselves and drink what we sell.