Eureka Atom W65 GBW Test & Review – Grind-by-Weight Espresso Grinder – La Barista

Eureka Atom W65 GBW – Test, review & experiences with the new grind-by-weight grinder

Introduction: The new generation of the Atom series

With the Eureka Atom W65 GBW, the Italian manufacturer brings to market an espresso grinder that combines the latest technology with classic Eureka design.
The abbreviation GBW (Grind by Weight) stands for precise, weight-based dosing – a feature previously only found in high-end grinders like Mahlkönig or Fiorenzato.
But how does the Atom W65 perform in everyday use? And is it worth switching from models like the Eureka Atom 75 or the Fiorenzato Allground Sense?

1. Design & build quality

At first glance, Eureka stays true to itself: The Atom W65 comes in a compact, elegant housing with high-quality materials.
The model is available in several colors – including black, white, and the Casa Edition with a 300 g bean hopper for home use.

The build quality is – typical Eureka – excellent: solid front, sturdy controls, and a modern IPS touch display reminiscent of the larger Atom models.

2. Grind-by-Weight – How accurate is the system?

The Instant Grind Weighing Technology is the heart of the new Atom W65.
The grinding process is monitored in real time here: An integrated scale measures the weight of the grounds directly in the portafilter and stops exactly at the preset amount.

🧠 Advantage: No over- or underdosing, no manual correction needed.
The tolerance is ± 0.2 g – that is impressively precise, especially for home use.

3. Performance & retention

With 65 mm flat burrs made of hardened steel and a powerful direct drive, the Atom W65 works quickly, quietly, and consistently.
The grinding speed is about 2–4 g/s, depending on the grind size.

The retention – that is, the amount of old coffee grounds left in the system after grinding – is minimal.
In tests, the values were under 1 g, which is absolutely top for a grinder of this size.

4. Noise level: Silent Technology

One of the biggest advantages of the Atom series remains intact:
Thanks to Silent Technology, the W65 is also among the quietest espresso grinders on the market.
Even at full speed, it remains pleasantly quiet – perfect for use at home or in a café.

5. Comparison: Eureka Atom W65 vs Fiorenzato Allground Sense

Feature	Eureka Atom W65 GBW	Fiorenzato Allground Sense
Grinding principle	Grind-by-Weight (GBW)	Time-based / optional scale
Grinding discs	65 mm steel	64 mm steel
Volume	Very quiet	Significantly louder
Display	Touch (3 programs)	Touch (1 program)
Dead space	< 1 g	approx. 2 g
Price	Mid-range	similar

➡️ Conclusion: The Atom W65 offers more precise and quieter grinding – ideal for baristas who value accuracy and comfort.

6. Eureka Atom W65 Casa – the compact version for home use

For all home baristas, there is the Eureka Atom W65 Casa:
It offers the same grind-by-weight technology but forgoes some professional features and is built more compactly.
With a 300 g bean container and 10 kg weight, it fits perfectly in any kitchen – with consistent performance.

7. Conclusion – Is the Eureka Atom W65 GBW worth it?

The Eureka Atom W65 GBW is a real breakthrough in the field of premium home grinders.
It combines precision, speed, smooth operation, and modern technology in a compact design.

✅ Advantages at a glance: