Mahlkönig E80W Grind-by-Sync (GBS) – espresso grinder with machine connection
If your shot runs faster over the course of the day because temperature and humidity change, this grinder readjusts the grind size by itself: together with a compatible La Marzocco machine, grinder and machine exchange data and keep the extraction within the window you want.
As an official Mahlkönig partner, we tailor the E80W GBS to your setup and support you through the installation.
All features at a glance
Grind-by-Sync (GBS)
The grinder connects to a compatible espresso machine via cloud/Wi-Fi. If the system detects a deviation in extraction time, the grinder adjusts the grind size with its motor – automatically.
Grind-by-Weight and DDD
A high-precision load cell doses by weight, while the patented Disc Distance Detection sets the grind size based on the actual distance between the burrs.
Portafilter detection and illuminated spout
The grinder detects the inserted portafilter; the adjustable, illuminated spout ensures clean dosing.
Sync app and 88.3 mm display
With the Mahlkönig Sync app, you set up the grind-brew synchronisation and view statistics. The large display can be read from a wide angle.
At a glance
| Burrs |
80 mm, special steel |
| Average grinding capacity |
6–8 g/s at 250 µm |
| Dosing |
Grind-by-Weight + Grind-by-Sync |
| Bean hopper |
approx. 1800 g |
| Dimensions (W×H×D) |
24 × 63 × 34 cm |
| Weight |
18 kg |
| Colours |
Black or white |
Sync compatibility
As a grinder, the E80W GBS works with any espresso machine. The automatic grind adjustment (Sync) functions with commercial La Marzocco machines: Linea Classic S, Linea PB, GB5 S, KB90, and Strada (AV/ABR). Linea Mini, Micra, and GS3 are not Sync-capable – they can be used as grinders, but without the Sync function.
What goes with it
Without machine connection, but with Grind-by-Weight: the E80 GBW. The smaller Sync sister is the E65W GBS. More in our Mahlkönig selection.
Frequently asked questions
Do I really need Wi-Fi for the Sync function?
The E80W GBS communicates with the machine via cloud/Wi-Fi. A connection is needed for the Sync function; as a grinder on its own, it also works without one.
Does the Sync adjustment work with my Linea Mini or Micra?
No. These models can be used with the grinder, but without automatic grind adjustment. Sync works with commercial La Marzocco machines such as Linea Classic S, Linea PB, GB5 S, KB90 and Strada.
Can I see the grinder in person?
Yes, in our showrooms in Bern and Zurich.
Roastery tip
For the Sync control to hit the sweet spot, I like an espresso with a clear centre: our Cozy Chocolate stays round and chocolatey, even over many shots. That's our recommendation, one of many.
