Select
Choose the programmed single or double weight on the touch display.

Eureka Grind-by-Weight
Grind directly into the portafilter by weight—not time—with patented real-time dosing technology and repeatability to within ±0.2 gram.


Weight is the recipe
Timed grinders estimate dose from how long the burrs run. Libra measures the actual coffee entering the portafilter in real time, automatically stopping at the programmed weight. The result is a faster workflow with fewer scale transfers, less correction and less wasted coffee.
Instant Grind Weighing Technology
The patented weighing system is integrated into the adjustable portafilter support. Select a stored dose, place the portafilter, and Libra manages the tare, grind and stop sequence in one station.
Four-step workflow
Choose the programmed single or double weight on the touch display.
Set the portafilter on the tool-free adjustable fork.
The integrated load system establishes the empty portafilter weight.
Libra weighs continuously and stops automatically at the target.
More control mid-dose
Start, pause or change between stored doses while grinding, use continuous grind-by-weight when required, and rely on automatic stop if the portafilter is removed.
Switch from single to double during the grind or pause the cycle when the workflow demands it.
Grinding stops immediately if the portafilter leaves the weighing fork, protecting the scale and reducing spills.
Precision beyond the scale
Hardened-steel burrs deliver reliable espresso grinding at approximately 1.8–2.5 g/s.
Eureka’s micrometric lower-burr adjustment provides near-infinite control while preserving settings during maintenance.
Anti-vibration and sound-insulated construction make the daily grind more comfortable at home.
Anti-clump and electrostatic control regulates the grounds flow for cleaner, more even dosing.
The support system helps maintain dose accuracy even when the portafilter is lightly disturbed.
Adjust portafilter height without extra tools to suit different basket and handle configurations.

Built for cleaner dosing
The height-adjustable fork positions the portafilter on the load sensor while a compatible dosing funnel helps keep grounds inside the basket. Together they create a direct, tidy transition from grinder to distribution and tamping.
Available at Espresso Dolce
Three finishes let Libra’s intelligent workflow integrate naturally with both contemporary and traditional espresso setups.



A closer look



Technical specifications
An espresso-focused grinder that combines Eureka’s proven Mignon platform with a real-time integrated scale.
Eureka Libra 55 GBW
Real-time weighing, repeatable espresso dosing and the beautifully compact Mignon platform—precision without the extra steps.