Eureka Libra (GBW)

Eureka Mignon Libra 55
Grind-by-Weight Coffee Grinder

Take precision and consistency to the next level with the Eureka Mignon Libra 55. Designed for espresso enthusiasts who want accurate dosing with less waste, the Libra combines Eureka’s proven grinding technology with an integrated grind-by-weight system that weighs coffee directly into your portafilter in real time.

Unlike traditional timed grinders, the Libra grinds to your selected weight, helping deliver repeatable espresso recipes shot after shot. Its weighing system offers precision of ±0.2 g, while the 55 mm flat hardened-steel burrs provide fast, consistent grinding for espresso.

Key Features

• Grind-by-Weight Technology – Weighs ground coffee directly into the portafilter while grinding in real time
• ±0.2 g Dosing Precision – Helps improve consistency and minimize coffee waste
• 55 mm Flat Hardened-Steel Burrs – Designed for reliable and uniform espresso grinding
• Stepless Micrometric Adjustment – Fine-tune your grind with a larger adjustment dial and vertical measurement scale
• Intuitive Touch Display – Set single and double-shot doses quickly and easily
• Single & Double Dose Programming – Save your preferred dose weights for repeatable results
• Dose Switching During Grinding – Switch between single and double doses during the grinding process
• Start & Pause Function – Greater control during your workflow
• Continuous Grind-by-Weight Mode – Added flexibility for different dosing needs
• Adjustable Portafilter Fork – Designed to accommodate a wide range of portafilters without tools
• Anti-Vibration System – Helps maintain accurate dosing even if the portafilter is disturbed
• Automatic Grinding Stop – Grinding stops immediately if the portafilter is removed
• Factory Pre-Calibrated – Designed for convenient, ready-to-use operation

The grinder’s touch-display functions, portafilter-removal stop system, and anti-vibration features are detailed in Eureka’s product sheet.

Technical Specifications