Specs
| Adjustment | The burr gap is shown and set in micrometres, and the grinder moves the burrs itself. It stores about six portafilters or doses 0:00 |
Starting settings
These are the settings each creator gave, measured from their own grinder's zero. Use them as a starting point.
| Method | Setting | Context | Confidence | By | Source |
|---|---|---|---|---|---|
| Espresso | burr gap about 100 µm, auto-corrected to about 124 µm | Washed Costa Rica on a La Marzocco machine. The first calibration shot ran 2 s long | approx | ECT | 5:39 |
Cup profile
- The baristas found the grind more consistent, with better distribution in the basket and no clumps 0:00.
Strengths
- Shot-time sync adjusts the gap by itself. A dose takes about 3 s, against 6 s or more on the café's older grinder, and there's less dust. An app shows recipes and shot accuracy across cafés, and the grinder works without sync too 0:00.
Weaknesses
- There's about a 1 s pause while it weighs the portafilter. The auto-adjust averages recent shots, so a manual nudge is quicker first thing in the morning or when conditions change. The baristas switched sync off at first, until they trusted it 0:00.
Verdict
2026 (European Coffee Trip): consistent and easy once staff trust the sync, with about 70% of shots synced on a typical day. It's made for busy cafés with several baristas 0:00.
Sources
- European Coffee Trip: Barista Reviews Mahlkönig E80W GbS Grinder After 3,579 Espresso Shots (2026-05-26)
Summarised in our own words from the creators' videos, with every point linked to the moment it comes from. Notchbook isn't affiliated with or endorsed by any of these creators, so please watch the originals for full context. Sources
Dialling in from here
- Sour, thin or fast? Grind finer. Why coffee tastes sour
- Bitter, dry or slow? Grind coarser. Why coffee tastes bitter
- Espresso: how to dial in. Filter: pour-over grind size.
Compare with other grinders in the grind size chart, or see every grinder.
Notchbook is a free app that remembers the setting that worked on your Mahlkönig E80W GbS for each coffee and brew method, and keeps a journal of every brew. Get it free on Google Play. The iPhone app is coming soon. More about Notchbook.