Mahlkönig E65W GBS – Espresso grinder with Grind-by-Sync and Grind-by-Weight
Buy the Mahlkönig E65W GBS in Switzerland: 65 mm espresso grinder with scale, electronic grind adjustment and Sync connectivity. Mahlkönig partner in Bern and Zurich.
The E65W GBS weighs the ground coffee while grinding and adjusts the grind size electronically. When connected to a compatible espresso machine or a Sync device, it automatically aligns the grind size with the target extraction time. Mahlkönig built it for compact, fast workstations in cafés; its larger sibling is the E80W GBS.
Features of the E65W GBS
Grind-by-Weight
A load cell weighs the ground coffee 6000 times per second while grinding. Dosing is by weight rather than by time or volume, so every dose comes out the same.
Automatic grind size adjustment (AGSA)
A small motor adjusts the burr distance electronically, including when switching between saved recipes. Two sensors track the position of the shaft and the motor. According to Mahlkönig, this allows adjustment in steps of 0.001 mm.
Tool-free zero calibration
The burrs are calibrated with a few inputs on the display, without tools. Mahlkönig puts this at around 10 seconds.
Consistent quality across the team
Grind-by-Sync and Grind-by-Weight keep recipes consistent, even when different people work at the grinder. According to Mahlkönig, this shortens onboarding for new staff.
The details in everyday use
The Sync System
The machine or Sync device reports the extraction time of the last shot to the grinder. On the next grind, the grinder compares this time with the target time in the recipe and goes finer or coarser if there is a deviation.
Wi-Fi or USB cable
Compatible La Marzocco machines connect via Wi-Fi. Compatible Sanremo machines are connected with a special USB cable, so no Wi-Fi is needed.
Brew Time Input
Without a Sync connection, you enter the extraction time from the machine on the display. The grinder then also adjusts the grind size to the target recipe.
Assisted Dial-in
A guide on the display leads you step by step to the target recipe for your coffee.
Disc Distance Detection
The patented DDD system measures the actual distance between the burrs. This lets you set the grind size again precisely.
Mahlkönig Sync App
The mobile app is used to set up the grinder, pair it with a machine or device and update it automatically. The desktop app shows operating data and distributes recipes to individual grinders; new recipes are confirmed at the grinder.
Portafilter detection, cooling and spout
The grinder detects the portafilter automatically. Active cooling keeps the grinding temperature low. The illuminated spout is adjustable, and the 88.3 mm display is readable from a wide angle. Mahlkönig describes the grinding as pleasantly quiet.
At a glance
| Burrs | 65 mm, special steel |
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| Burr lifetime | approx. 800 kg (medium setting) |
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| Idle speed | 1400 rpm (50 Hz) |
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| Grinding capacity | 4–5 g/s at 250 µm (50 Hz, lab value) |
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| Dosing | Grind-by-Weight, load cell with 6000 measurements per second |
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| Grind adjustment | Electronic via motor, Disc Distance Detection |
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| Connectivity | Wi-Fi (cloud), USB for cable connection |
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| Sync-compatible machines according to Mahlkönig | La Marzocco Strada S, KB90, Linea PB, Linea PB X, Linea Classic S, GB5 S, GB5 X (AV or ABR); Sanremo Café Racer, F18 Multiboiler, F18 SB, D8 PRO, D8 |
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| Other Sync devices | Mahlkönig Sync Scale, The Flow System |
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| Display | 88.3 mm |
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| Bean hopper | approx. 1200 g, optionally approx. 250 g or approx. 1800 g |
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| Voltage / power | 220–240 V, 50/60 Hz, 440 W |
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| Dimensions (W × H × D) | 19.5 × 62 × 28.3 cm |
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| Weight | 12.2 kg net |
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| Colours | Polished aluminium with matte black; polished aluminium with matte black and white |
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| Optional accessories | Bean hopper 250 g or 1800 g, burr change tool, 1 kg calibration weight |
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Who the E65W GBS is made for
For cafés and businesses where several people work at the grinder and recipes should stay consistent. With a compatible La Marzocco or Sanremo machine, it readjusts the grind size on its own. On any other machine, it works as a Grind-by-Weight grinder, with Brew Time Input as manual feedback.
We pull espresso by weight, with 1:2 as a starting point, and set the target time accordingly. To us, grinders are like engines: subjective, there is no objectively best one. Our opinion is one of many.
More models, including the E80W GBS, the E65S and the Mahlkönig Sync Scale, can be found in the Mahlkönig collection. Sync-capable machines are in the La Marzocco collection and the Sanremo collection.
For puck preparation: if you want it affordable and precise, choose a tamper and WDT tool from the Normcore collection. If you want more: tamper and Moonraker from the Weber Workshops collection. For the scale at the machine: Normcore for an affordable option, Acaia with app and flow rate display.
Not sure which grinder fits? The advice tool narrows down the selection, and an advice appointment is free of charge. In the comparison workshop in Zurich, you can test grinders and machines side by side during a reserved hour. An option, not a requirement.
Delivery in 2–4 working days, throughout Switzerland and to Liechtenstein. Click & Collect in Bern, Gerberngasse 44 and Zurich, Hagenholzstrasse 50b. Financing available. Questions to [email protected] or by phone during business hours.
Frequently asked questions
Does the E65W GBS also work without Sync?
Yes. On any espresso machine, it works as a Grind-by-Weight grinder with electronic grind adjustment. With Brew Time Input, you enter the extraction time on the display, and the grinder then adjusts the grind size to the target recipe.
Which espresso machines does Grind-by-Sync work with?
According to Mahlkönig, with La Marzocco Strada S, KB90, Linea PB, Linea PB X, Linea Classic S, GB5 S and GB5 X in AV or ABR versions via Wi-Fi, and with Sanremo Café Racer, F18 Multiboiler, F18 SB, D8 PRO and D8 via USB cable. In addition, there are the Mahlkönig Sync Scale and The Flow System.
Do I need Wi-Fi for Grind-by-Sync?
For La Marzocco machines, yes, the connection runs via Wi-Fi. With the compatible Sanremo machines, it runs via a special USB cable without Wi-Fi. Software updates and the Sync App use the cloud connection.
What is the difference between the E65S and the E65W GBS?
Both have 65 mm burrs. The E65S is adjusted steplessly by hand and stores up to 6 recipes. The E65W GBS weighs while grinding, adjusts the grind size electronically and can sync with compatible machines.
How large is the bean hopper?
Around 1200 g as standard. Hoppers of around 250 g and around 1800 g are available as options.
Can I see the Mahlkönig E65W GBS before buying?
Yes, in our showrooms in Bern (Gerberngasse 44) and Zurich (Hagenholzstrasse 50b). The display changes, so please drop a short note to [email protected] beforehand.
Tip from the roastery: For espresso and milk drinks, we mainly roast Cozy Chocolate and Nutty Delight: full-bodied, round, with chocolate and nut. If you want maximum body without acidity, reach for Very Nutty. For those curious about a fruity experience, there is Wild Peach. That is our recommendation, one of many.
