Overview
Since we brought in the Eureka line of espresso coffee grinders back in 2015, we have seen many different models over the years. Each one has something unique to offer. The Atom Specialty 65 can handle large-volume grinding. The Perfetto can grind for multiple brew methods. Now we are excited to introduce this new grinder with a feature that you don’t find in other grinders. The Eureka Mignon Libra features grind-by-weight dosing. Most on-demand grinders are timed based in that the grinder will run for a preset time. As you refill your hopper with beans that may have a slightly lighter or darker roast, that can affect how much coffee will fill your portafilter. This may require recalibrating your grind time. With the Eureka Mignon Libra, you select the exact amount of ground coffee you need (in grams) and it will grind out that amount. Lessens the need to readjust and is accurate within +/- 0.2 g to reduce waste.
Videos


Features
On Demand Grinding
- Grind by Weight Dosing! One of the few espresso coffee grinders on the market with this feature! Most on-demand grinders are timed based in that the grinder will run for a preset time. As you refill your hopper with beans that may have a slightly lighter or darker roast, that can affect how much coffee will fill your portafilter. This may require recalibrating your grind time. With the Eureka Mignon Libra, you select the exact amount of ground coffee you need (in grams) and it will grind out that amount. Lessens the need to readjust and is accurate within +/- 0.2 g to reduce waste.
Flat Grinding Burrs
- Flat burrs: Large size at 55 mm. The larger the size, the more of a grinding surface, resulting in faster production.
- Easy access: Remove the bean hopper. Behind the back logo, there is a Philips head screw that holds the top panel. Under the panel, there are 2 more Philips head screws that hold the top burr carrier.
- High rpm: Fast spinning rate at 1350 rpm. The higher the speed, the faster the production, which can increase efficiency and reduce wait times.
- Silent Technology: This built-in anti-vibration innovation solution helps reduce the grinding noise by ~20 dB resulting in a happier home and a more productive workspace.
Dosing Funnel
- Reduce waste: Fits easily on almost every portafilter (57mm or 58mm). Helps reduce any spillage that may happen during the grinding process.
Grinding Adjustment
- Stepless: Infinite number of grind settings which allows you really fine-tune your grind. The adjustment dial is located underneath the hopper. The entire dial is numbered so you can remember your current grind setting easier. Turn clockwise for a finer grind and counterclockwise for a coarser grind.
Adjustable Portafilter Fork
- Ease of use: Allows you to rest your portafilter while grinding for a complete hands-free operation. Accommodates most portafilters.
- Adjustable: Accommodates almost any portafilter including the dosing funnel. The distance can be easily adjusted from 1″ to 2.5″.
- Top coating: The top of the fork has a silicone surface to prevent it from scratching the portafilter.
Bean Hopper
- Low profile: The total height of the Eureka Mignon libra without the hopper is a little under 11.5″ (to the grinding adjustment knob). The bean hopper adds another 4.25″ bringing the total height to approximately 15.375″. The total capacity is approximately 300 grams of whole coffee beans.
- Set screw: Secures the hopper to the grinder. Serves as a reminder for users to make sure the hopper is empty before removing it.
- Finger guard: Prevents users from “accidentally” putting their fingers in the grinding burrs. Also helps reduce the “popcorning” effect when the beans are running out.
- Stopper: A door near the bottom of the hopper can slide in to close the opening. This allows you to remove the hopper with beans inside so you can easily change the beans. There will be some beans in the burrs which you will have to grind out first before removing the hopper.
Specifications
| Brand | Eureka |
|---|---|
| Height (inches) | 15.375, approximate |
| Width (inches) | 5, approximate |
| Depth (inches) | 7.75, approximate |
| Weight (pounds) | 15 |
| Wattage (watts) | 310 |
| Voltage (volts) | 110 – 120 |
| Approvals | CE |
| Hopper capacity (grams) | 300 |
| Burr size (mm), Type | 55, flat |
| Grinding speed (RPM) | 1350 |
| Country of manufacture | Italy |
Notes
Espresso Coffee Grinder Warnings:
- Roast Profiles: Espresso grinders sold by 1st-line Equipment, unless specifically indicated on the grinder page, are manufactured for coffee beans that have Italian or espresso roast profiles. Lighter roasted coffee beans may clog the grinder or not grind fine enough. Darker roasted coffee beans, such as French roasted or oily coffee beans, may clog the grinding chamber and/or the grinder chute where the ground coffee exits.
- Changing grind settings: It is very important to only change grind settings when the unit is powered on and the burrs are in motion. If you do not do this, the burrs will ‘gunk’ up and render the grinder to only produce very coarse grinds or no grinds at all. To remedy this, you will have to open up the grinder to get access to the grinding burrs. This issue will be considered operator error for lack of following directions, and not be classified as a defective grinder.
- Electrical cord: For most grinders, the cord is placed between the packaging (foam or cardboard) and the underside body of the grinder. During shipping, it is normal for a bend or insignificant blemish/slice to damage the cord.
- Finding coffee grinds in a new grinder: Most manufacturers test their grinders with coffee beans before they leave their facility. Unfortunately, they are not always able to get every trace of coffee out of the grinders after testing. As a result, you may find coffee beans or grinds inside your grinder, or there may be grinds in the packaging.
- Static issues: There are static issues with all grinders, even the highest-quality models. We firmly believe that the static comes from the coffee beans. If you are having static problems with your coffee grinder, try using a different blend of beans.
- Electrical: To avoid electrical damage (which is not considered a manufacturer's defect), please acquire and install a single-outlet surge suppressor rated at 1080 joules or higher. A surge without protection can damage a grinder at the power switch, the capacitor, the motor, or the wiring.
- Burr cleaning: For routine maintenance of the grinding burrs, we recommend using grinder cleaning agents. We do not recommend any removal of the burrs or the burr carrier for cleaning (unless necessary) as re-assembly can cause damage. If the grinder chamber is dis-assembled, the warranty is voided for any damages that result. It is important to always remove all coffee grinds from the threads of the burr carrier and the grinding chamber.
- Replacing burrs: NEVER use a flat head screwdriver and hammer to wedge UNDER the burrs for removal. This could badly damage your grinder.
Support
Parts Diagram
- Please use the parts diagrams provided below to determine the part(s) you need. Then use our search box above to find the part(s) on our website.
Note: These parts diagrams are provided by the manufacturers. We list them on our site for informational purposes only. We do not stock every single part listed nor can we guarantee that every part is available to order. - If uncertain, please go to the equipment model or part product page. Then use the Q&A tab found on that web page to ask your question.
- Lastly, and only if the first 2 options were exhausted, please use our parts inquiry page.
- Our call center does not have the training to handle parts inquiries for over 60,000 different parts items. Asking any questions regarding parts will more than likely result in you being referred to the above steps.
- Please note also that all parts purchases are non-returnable or refundable and do not include technical support, instructions, or warranties as the purchase price of any part does not cover the cost of technical support. Technical support is available for repairing equipment in our shop.
- Sorry, we will only special order a part for a model we carry AND was purchased through our supply chain.
- Since we are unaware of the mechanical, electrical, and/or plumbing expertise of a parts buyer or the tools owned by a parts buyer, we are never able to advise if a self-repair can be performed.
| SKU |
| 1005.0110 (US/CAN 110V) |
| 1005.0225 (Schuko 1.2 mt 220V) |
| 1005.0240F5A (UK 230-240V) |
| 1005.0250 (Japan 125V) |
| 1005.1240 (Australia 230V-240V) |
| 1005.4220 (Switzerland 220-230V) |
| 1013.0008 (8 / 450I) |
| 1013.0020 (20 MF 400-450 MARC) |
| 1013.0032 (32MF 400-450Vac 50/60H) |
| 2311.0003-951KIT |
| 2311.0026KIT KIT |
| 2311.0027V1707KIT |
| 2311.0029 |
| 2311.0035A0R03-XXG |
| 2311.0050 |
| 2311.1000 |
| 2324.0012NLR00-XXX |
| 2324.0023A0R00-XXG |
| 2324.0110A0R00-XXX (110V) |
| 2324.0220A0R00-XXX (220V) |
| 4122311.3000 |
| 5101.0025 |
| 6045.0020 |
| ACC-DSF-003-1KIT |
| CAV106 |
| E00253-031031-R00 |
| E00254-009103-R00 |
| E00325-036024-R00 |
| E00344-010031-R00 |
| MAC55ITAv1802 CP |
| RIC-BA1.2324-001 (110V) |
| RIC-BA2.2324-001 (220V) |
| RIC-CAV.2324-001 |
| RIC-FOR.2324-001 |
| RIC-FRO.2324-001 |
| RIC-PES.2324-001 |
| RIC-PIE.2319-001 |
| RIC-PMS.2320-001 |
| RIC-POM.2320-001 |
| RIC-VIT.2324-001 |
Reviews
Q & A
Ask a question
Please ask follow up questions as a new question. Submitted questions will be first reviewed, answered, and lastly publicized.
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Do you sell replacement part 5101.0025 (opening/closing tab for coffee bean hopper) for the Eureka Mignon Libra espresso coffee grinder?
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Q Do you sell replacement part 5101.0025 (opening/closing tab for coffee bean hopper) for the Eurek...... Read more answer nowAsked by on July 7, 2025 1:34 pmAnswered by the admin
Unfortunately, we do not stock that particular part.
Does the dosing funnel work with Elektra portafilter 49mm?
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Q Does the dosing funnel work with Elektra portafilter 49mm? answer nowAsked by on March 1, 2025 1:23 amAnswered by the admin
Sorry, the Elektra 49mm portafilter is too small for the dosing funnel provided at this time of this writing.
Let me know when this machine is available. Eureka Mignon Libra Espresso Coffee Grinder
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Q Let me know when this machine is available. Eureka Mignon Libra Espresso Coffee Grinder answer nowAsked by on January 10, 2023 1:31 pmAnswered by the admin
Hi,
Currently, we do not have an ETA or even a price yet. We have set it up on our website and as we get more information we will update the page. We also added your email to the waiting list. You will receive an email notification once we receive them and are available to order.
