Mahlkönig E64 WS Grind-by-Weight & Sync Home Espresso Grinder | 64 mm Flat Burrs, Electric Grind Control, Wi-Fi, Precision Dosing & App Integration

Reviews updated 10 hours ago

The summaries below are AI-rewritten and translated from public Amazon reviews. We do not publish original review text — each summary links to its source.

Customer review summaries

AI-assisted

Strong grinder with smart auto-adjust, minor quirks

This grinder performs very well and produces fluffy grounds, with earlier issues apparently resolved. The app is somewhat buggy and not very useful, though it helps with initial setup. The spout tends to move backward during grinding, but placing a small sponge behind it keeps it in place. A standout feature is automatic adjustment based on the recipe: after each shot it fine-tunes itself and consistently delivers excellent results based on the entered extraction time. It pairs well with a Linea Mini R.

Pros
  • + Produces fluffy grounds
  • + Earlier issues appear fixed
  • + Automatically adjusts based on recipe
  • + Fine-tunes after each shot
  • + Consistent excellent results
  • + App helps with initial setup
Cons
  • − App is somewhat buggy and not very useful
  • − Spout moves backward while grinding
AI-assisted summary of a verified Amazon customer review. · July 22, 2026 · United States Read original on Amazon ↗
AI-assisted

Strong grinder with a difficult setup

This grinder is solidly built, relatively quiet, and delivers excellent results once configured. Setup is challenging: the app wizard does not work, so Wi-Fi must be set up manually and the machine updated before returning to the wizard and adding it via QR code. Burr calibration should also be done before adding beans, as some units arrive about 30 microns off; adjust the burrs until they touch, then grind the first shot around 100 microns. The app tracks many details, including burr health, but needs work and has bugs.

Pros
  • + sturdy build
  • + relatively quiet
  • + excellent grinding results
  • + tracks many details including burr health
Cons
  • − app needs work
  • − wizard setup does not work
  • − burr calibration needed out of the box
  • − initial setup problems and bugs
AI-assisted summary of a verified Amazon customer review. · May 29, 2026 · United States Read original on Amazon ↗
✓ Verified
AI-assisted

Highly Recommended Espresso Grinder

This grinder delivers an outstanding experience and is considered well worth the investment. Anyone thinking about buying it is encouraged to go ahead, as it is unlikely to disappoint. No specific drawbacks or use cases are mentioned.

Pros
  • + outstanding performance
  • + worth the money
AI-assisted summary of a verified Amazon customer review. · August 15, 2026 · United States Read original on Amazon ↗
✓ Verified
AI-assisted

Too complicated and unreliable, returned

This grinder is overly complicated to set up, and the app never works. The grind-by-weight function does not work and frequently returns error messages. Setup attempts wasted a significant amount of high-quality coffee beans, and the unit was returned. A simpler grinder performs the job without these issues. The product is manufactured in China.

Cons
  • − complicated setup
  • − app never works
  • − grind-by-weight does not work
  • − frequent error messages
  • − wastes coffee beans
  • − manufactured in China
AI-assisted summary of a verified Amazon customer review. · July 15, 2026 · United States Read original on Amazon ↗

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