Eureka Mignon Libra Espresso Grinder: Setup Guide

Congratulations on your new coffee grinder. Let's get it set up!

This quick start guide will walk you through setting up your grinder. Check the product page and the manufacturer's brochure for a list of included accessories, details, specs, and additional product information from Eureka. See the User Manual for information on operating the grinder and for additional resources. 

Step one: Unboxing

• After removing the grinder from its box, ensure you place it on a solid, level surface. 
• Inspect the grinder for any damage. If you notice any, contact us immediately.
• Place the hopper in the grinder and pull the gate open by sliding the tab outwards. If you plan to leave the hopper inserted, feel free to lightly tighten the hopper screw at the back to hold it in place. 
• Insert the portafilter clip. 
• Plug the grinder in and turn it on (the power switch is located on the right rear side of the chassis.) When on, the display screen will illuminate. 
• Fill your hopper with coffee, if you wish.

Step two: Operating your grinder

• Select a shot button and use the plus and minus (+/-) symbols to set your desired dose by weight. 
• To grind in manual mode, press both shot buttons simultaneously. A gear icon will appear. Push the activation button with your portafilter and hold it — the grinder will continue to run until you disengage.
  

Step three: Dialing in your grind

• To adjust the grind size, move the continuous adjustment knob clockwise for a finer grind or counterclockwise for a coarser grind. 
• Adjust the grind setting by turning the small dial on top of the grinder. The grinder is infinitely adjustable, with the numbers serving merely as reference points. This means the dial can rotate 360 degrees several times until the burrs touch or the dial unthreads. Turning the dial clockwise (towards smaller numbers) adjusts the grind setting finer, and turning counter-clockwise (towards larger numbers) adjusts the grind setting coarser. When dialing in for espresso, make small adjustments, in increments of 1/4 - 1/2 a number at a time, as this mechanism is very sensitive. 
• Using the grinder for drip coffee and pour-over will require a large adjustment, likely an entire 360-degree rotation or two. When moving from espresso to pour over, i.e., fine to coarse, it is okay that the grinder is not running. When making large adjustments back to espresso, i.e., coarse to fine, it's best to have the grinder running so that it does not jam. 
• If coffee does not come through the grinder at any point, this could indicate that the setting is too fine or jammed. Open the burrs to free the coffee by turning counter-clockwise and making the setting coarser. 

For help dialing in your grinder for the perfect shot, check out our article How to Dial In Your Espresso Grinder. For help pulling great shots, check out our Espresso 101 section to learn about pulling shots, steaming milk, and more!