OPEN BOX Eureka Mignon Libra 65 AP Grinder with Grind by Weight (Black)
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OPEN-BOX CONDITION: This is a customer-return unit that may show light evidence of prior use. It has been cleaned and inspected and includes the full applicable warranty.
Limited availability: Open-box inventory is limited. Select the available finish above before ordering.
Open-Box Eureka Mignon Libra 65 AP: Condition and Value
This listing offers the same core grinder performance described below at an open-box price. Packaging may show handling, and the grinder may have minor cosmetic evidence of setup or brief use. Espresso Outlet inspects and cleans the unit before resale.
Prefer an unused unit? View the new Eureka Mignon Libra 65 AP.
Eureka Mignon Libra 65 AP Grind-by-Weight Coffee Grinder
The Eureka Mignon Libra 65 AP is the all-purpose grind-by-weight model in the Mignon family. It pairs a built-in scale with 65mm flat hardened-steel burrs engineered for espresso and filter, a large 0–20 King-Size dial, revolution counter, low-retention blind upper burr and a versatile fork for portafilters or dosing cups.
Choose the Libra 65 AP when you want one Eureka grinder for multiple brew methods without giving up automatic dose-by-weight convenience. The Libra 55 is smaller and espresso-focused; the Atom W 75 is the faster commercial-style grind-by-weight step up.
Why Choose Eureka Mignon Libra 65 AP?
- 65mm all-purpose flat burrs: Designed for espresso and the full range of filter methods.
- Instant Grind Weighing: Automatically stops at a programmed gram target.
- King-Size dial with revolution counter: Makes coarse-to-fine changes easier to record and repeat.
- Blind upper burr: Helps reduce retained coffee.
- Two weight presets + continuous mode: Flexible touchscreen operation.
- Versatile adjustable fork: Supports portafilters and compatible all-purpose cups.
- ACE system: Helps reduce clumps and static.
Who Is It Best For?
Choose the Libra 65 AP if you regularly alternate between espresso, pour-over, batch brew or immersion and want the grinder to weigh doses automatically.
If you stay exclusively in espresso and want a smaller footprint, the Libra 55 may be sufficient. If you pre-weigh and change beans every dose, the Zero 55 offers a simpler single-dose workflow.
Eureka Libra 65 AP vs Libra 55 vs Atom W 75
These three models all reduce manual weighing, but their scale, burr size and intended volume differ.
| Model | Burrs | Dosing workflow | Best for | Main reason to choose it |
|---|---|---|---|---|
| Eureka Mignon Silenzio 50 | 50mm flat steel | Manual or analog timed dosing | Quiet, straightforward home espresso | The simplest and most affordable hopper-fed Mignon in this collection |
| Eureka Mignon Zero 55 | 55mm flat steel | Single dose with bellows and cup | Changing coffees and weighing each dose | Purpose-built low-retention single-dose workflow |
| Eureka Mignon Specialita 55 | 55mm flat steel | Two timed doses + continuous | Daily hopper-fed espresso | Touchscreen convenience and repeatable timed dosing |
| Eureka Mignon Libra 55 | 55mm flat steel | Grind by weight | Hands-free espresso dosing | Stops at a programmed gram target rather than time |
| Eureka Mignon Libra 65 AP | 65mm flat steel, all-purpose geometry | Grind by weight | Espresso and filter from one grinder | Larger burrs, built-in scale and easier setting changes |
| Eureka Atom 75 | 75mm flat steel | Electronic timed dosing | High-volume espresso | Faster commercial-style output without grind-by-weight |
| Eureka Atom W 75 | 75mm flat steel | Grind by weight | High-volume, weight-based espresso | Atom speed plus an integrated weighing system |
Libra 65 AP vs Libra 55
Libra 65 AP has larger all-purpose burrs, a 350g hopper, King-Size dial and revolution counter. Libra 55 is more compact and espresso-focused.
Libra 65 AP vs Atom W 75
Atom W 75 is a larger, faster commercial grinder for repeated espresso service. Libra 65 AP is better suited to a home counter and broader brew-method changes.
Built-In Scale for Espresso and Filter
Program a gram target, place a stable portafilter or compatible cup on the fork, and start grinding. The grinder measures output while it runs and stops at the target. The larger numbered dial and revolution counter help you record settings when moving between brew methods.
King-Size Dial and Revolution Counter
The 0–20 dial provides more visible resolution than the classic Mignon knob. The rotation counter tracks full turns, helping you return to an espresso setting after grinding coarser. It remains stepless, so record both the counter and dial position.
65mm All-Purpose Burrs and Low-Retention Design
The 65mm burr geometry is intended for both espresso and filter, including lighter roasts. A blind upper burr reduces spaces where coffee can collect, while ACE helps manage static and clumps.
Eureka Mignon Libra 65 AP Specifications
| Recommended use | Espresso and filter |
|---|---|
| Burrs | 65mm flat hardened steel, all-purpose geometry |
| Adjustment | Stepless King-Size 0–20 dial with revolution counter |
| Dosing | Two weight presets + continuous |
| Dose consistency | Approximately ±0.2 g under proper setup |
| Output | Approximately 0.8–1.2 g/s espresso; 2.5–3.0 g/s brew |
| Motor | 1350 RPM, 310 W |
| Hopper | 350 g |
| Dimensions | 4.88 in W × 7.56 in D × 15.35 in H |
| Weight | 14.3 lb |
| Electrical | 110–120V, 60Hz U.S. version |
Specifications apply to this U.S.-market listing and may differ from similarly named international revisions.
Setup and Care
- Record the revolution counter and dial number for each brew method.
- Keep the grinder level and the weighing area clean.
- Adjust the fork so the portafilter or cup is stable and free-standing.
- Run the grinder while adjusting finer.
- Recalibrate if repeatable dose errors develop.
- Unplug before internal cleaning.
What Comes in the Box?
- Eureka Mignon Libra 65 AP grinder in black
- 350g hopper with lid
- Adjustable portafilter/all-purpose cup fork
- Grounds tray
- Product documentation
Included accessories can change by production run. Contact Espresso Outlet before ordering if a particular accessory is essential.
Frequently Asked Questions
Is the Libra 65 AP good for espresso?
Yes. Its stepless adjustment and 65mm burrs can dial in espresso precisely, including lighter-roast styles.
Is the Libra 65 AP good for pour-over?
Yes. The all-purpose burr geometry and trackable dial were specifically designed to support filter as well as espresso.
How accurate is grind-by-weight dosing?
Eureka specifies consistency around ±0.2g under proper setup. Stability, calibration, static and the receiving container all affect results.
What does AP mean?
AP means All Purpose. It refers to the burr design and adjustment system intended for both espresso and filter methods.
What does the revolution counter do?
It tracks complete rotations as you move coarser or finer, helping you return to saved settings after changing brew methods.
Can it grind into a dosing cup?
Yes, its revised adjustable fork is designed to support compatible portafilters and all-purpose cups.
Can Eureka Mignon Libra 65 AP grind for pour-over or drip coffee?
Yes. This is the Eureka model in the collection most deliberately designed for espresso-to-filter switching.
How much coffee does Eureka Mignon Libra 65 AP retain?
The blind upper burr and compact Mignon chamber reduce retention, but exchange still depends on coffee, setting and cleaning. Purge when changing beans or moving far between settings.
Does Eureka Mignon Libra 65 AP require RDT?
Use RDT cautiously and only with single measured doses. Do not wet beans stored in the hopper, and keep the weighing platform dry and clean.
How quiet is Eureka Mignon Libra 65 AP?
It uses Eureka noise-control engineering and is relatively quiet for a 65mm grinder, though it may sound different from smaller classic Mignons.
Can SSP burrs be installed?
Do not assume a generic SSP set fits. The Libra 65 AP uses Eureka’s purpose-designed all-purpose burr system; replacement burr compatibility must be confirmed for this exact model.
Will cleaning erase the grind setting?
Routine upper-burr access generally preserves the lower-burr adjustment. Mark the dial before service, unplug the grinder, and follow the manual whenever opening the burr chamber.
Should the grinder run while adjusting finer?
Yes. Run the motor while moving finer so beans are less likely to become compressed between the burrs. Make small changes and purge a little coffee before evaluating the next extraction.
Is this the 120V U.S. version?
Yes. This listing is for a 110–120V, 60Hz U.S.-market grinder. Do not use it on a 220–240V electrical system without the correct manufacturer-specified version.
Where is Eureka Mignon Libra 65 AP made?
Eureka manufactures this grinder in Florence, Italy.
Does Espresso Outlet provide support and warranty service?
Espresso Outlet supports the products it sells and can help with setup, parts, and service questions. Warranty coverage follows the applicable U.S. terms for this listing; contact us with an order number for a specific claim.
Open-Box Questions
What does open box mean?
This unit was previously shipped to or used briefly by a customer and returned. It is not represented as factory-sealed new merchandise.
Has the grinder been inspected?
Yes. Espresso Outlet cleans and inspects the unit before resale. Cosmetic condition and packaging may differ from a factory-sealed product.
Does the open-box grinder include a warranty?
Yes. This listing includes the full applicable warranty stated for the product. Contact Espresso Outlet with the order number if service is needed.
Are all accessories included?
The essential operating accessories are included unless the listing states otherwise. Packaging or minor nonessential materials may differ; contact us before ordering if a particular accessory is required.
Shop More Eureka Grinders
Still deciding? Browse the complete Eureka grinder collection or use the comparison above to select the dosing workflow and burr size that fit your coffee routine.
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