The Eureka Mignon Libra 65 All Purpose combines the convenience of integrated Grind-by-Weight dosing with newly designed 65 mm flat burrs suitable for both espresso and filter coffee.
Place your portafilter or dosing cup on the integrated weighing fork, select the required dose, and the Libra grinds directly to the programmed weight. Dose consistency of approximately ±0.2 gram helps reduce waste and gives every coffee recipe a more reliable starting point.
The compact matte-black body, illuminated touchscreen, stepless adjustment, quiet operation, and clever anti-retention design make it an exceptionally versatile grinder for serious home baristas.
One grinder.
Every brewing method.
Precision built in. ☕⚖️
Most espresso grinders dose coffee according to grinding time.
The problem is that the amount delivered during a fixed number of seconds can change as a result of:
The Libra measures the coffee that actually reaches your portafilter or dosing cup.
Its patented Instant Grind Weighing Technology stops the grinder when the selected target weight has been reached. Eureka specifies dose consistency within approximately ±0.2 gram.
✅ More repeatable coffee doses
✅ Less weighing before grinding
✅ Less coffee waste
✅ Faster daily workflow
✅ Easier recipe consistency
✅ Fewer corrections between shots
For espresso, you can grind directly into the portafilter.
For AeroPress, moka pot, filter coffee, or French press, place a suitable dosing cup on the versatile fork.
The illuminated touchscreen keeps operation straightforward while providing accurate control over your dose.
The grinder offers:
☕ One programmable dose
☕ A second programmable dose
⚖️ Continuous Grind-by-Weight mode
▶️ Easy start and pause control
You can prepare separate settings for a single and double espresso, or use the continuous function when dialling in a new coffee or weighing a larger filter dose.
The screen displays the selected weight clearly, making it easy to make small changes in increments of a tenth of a gram.
Eureka officially specifies two programmable doses plus continuous operation.
The Libra 65 uses 65 mm flat burrs made from hardened steel.
Their special All Purpose geometry is designed to accommodate the very different requirements of espresso and filter coffee. Eureka rates the burrs for approximately 500 kg of coffee, depending on use and grinding conditions.
The fine adjustment range allows you to control:
☕ Extraction time
⚖️ Dose and yield
🍯 Sweetness
🍋 Acidity
🍫 Body
👅 Flavour balance
The All Purpose design provides the speed and range required for:
Hario V60
AeroPress
Hario Switch
⚗️ Chemex
Moccamaster
French press
❄️ Cold brew
This makes the Libra 65 much more versatile than the original 55 mm Libra, which Eureka primarily positions as an espresso grinder.
Small grind adjustments can create significant changes in espresso extraction.
The Libra 65 therefore uses Eureka’s larger King-Size Dial, making fine adjustments easier to see and control.
Combined with Eureka’s patented stepless micrometric system, it allows you to move gradually finer or coarser without being restricted to fixed adjustment steps.
✅ Precise espresso dialling-in
✅ No unwanted gap between settings
✅ Easy correction for ageing beans
✅ Better control over extraction speed
✅ Freedom to optimise each coffee individually
The larger dial is also more practical when moving between espresso and filter settings.
Record the dial position of successful recipes so you can return to them more easily.
Coffee retained inside a grinder becomes older and oxidised.
When you start grinding again, part of that stale coffee may enter the next dose, affecting flavour and making the delivered weight less predictable.
The Libra 65 uses Eureka’s Blind Upper Burr, designed to reduce the space in which coffee can remain trapped.
This can provide:
✅ Lower retention
✅ Less stale coffee entering the next dose
✅ Cleaner transitions between beans
✅ More reliable weight-based dosing
✅ Less wasted coffee while dialling in
No hopper grinder is completely retention-free, but thoughtful internal geometry makes daily purging and cleaning more manageable.
Eureka’s ACE system helps reduce clumping and static electricity as the ground coffee leaves the grinder.
The result is a cleaner, more evenly distributed flow into the portafilter or dosing cup.
This helps provide:
☕ Fewer large clumps
🧹 Less coffee scattered around the grinder
⚖️ More controlled dosing
🧰 Easier puck preparation
✨ A cleaner home-barista workspace
For the most even espresso puck, we still recommend using a WDT tool after grinding.
The Libra 65 features a stable, adjustable fork designed for both:
No tools are required to adjust the fork.
This is particularly valuable because accurate Grind-by-Weight operation depends on the vessel remaining stable throughout the grinding process.
Place the portafilter securely on the fork and grind directly into the basket.
Position a compatible dosing cup beneath the outlet, grind the selected amount by weight, and transfer the grounds to your brewer.
The optional Eureka Libra dosing funnel can help prevent coffee from spilling over the edge of the espresso basket.
The Mignon platform is known for a compact, home-friendly workflow.
The grinder’s solid construction and motor mounting help reduce unpleasant vibration and operating noise, making it suitable for:
🏠 Kitchens
🌅 Early mornings
🏢 Offices
📚 Open-plan living spaces
☕ Dedicated home coffee corners
No 65 mm electric grinder is silent, but the Libra is designed to be considerably more comfortable in a domestic environment than many traditional commercial grinders.
The 310-watt direct-drive motor operates at approximately 1,350 rpm.
Eureka specifies grinding speeds of:
The difference reflects the increased resistance involved in grinding coffee at fine espresso settings.
This means an 18-gram espresso dose takes longer than a similar filter dose, but the priority is controlled Grind-by-Weight accuracy rather than maximum commercial speed.
The Libra 65 is designed to handle both espresso and filter coffee, but whether it should replace two separate grinders depends on your routine.
✅ You mainly brew espresso
✅ You occasionally prepare filter coffee
✅ You value counter space
✅ You do not change brewing methods several times every day
✅ You are happy to record successful grind settings
⚠️ You frequently switch between espresso and French press
⚠️ Several people use different recipes throughout the day
⚠️ You want to leave espresso permanently dialled in
⚠️ You change beans constantly
⚠️ Maximum workflow speed matters more than space
The Libra 65 offers the necessary grinding range, but changing from very fine espresso to coarse filter coffee still requires turning the adjustment dial and purging a small amount of coffee.
The Eureka Mignon Libra 65 All Purpose is ideal for:
✔️ Serious home baristas
✔️ Espresso enthusiasts
✔️ Filter-coffee drinkers wanting one grinder
✔️ Users who value Grind-by-Weight convenience
✔️ Coffee lovers who dislike wasting beans
✔️ Households using several brewing methods
✔️ Premium office coffee setups
✔️ Users upgrading from a timer-based grinder
✔️ Light-roast and single-origin enthusiasts
✔️ Anyone wanting 65 mm flat burrs in a compact body
Product: Eureka Mignon Libra 65 All Purpose
Colour: Matte black with chrome-finished faceplate
Grinder type: All-purpose Grind-by-Weight grinder
Recommended methods: Espresso and filter coffee
Burr type: Flat
Burr diameter: 50 mm
Burr material: Hardened steel
Recommended burr lifespan: Approximately 500 kg
Grind adjustment: Stepless micrometric
Adjustment control: King-Size Dial
Upper burr: Blind Upper Burr
Anti-clumping: Eureka ACE system
Dosing: Integrated Grind by Weight
Dose consistency: Approximately ±0.2 g
Programs: Two doses plus continuous mode
Display: Illuminated touchscreen
Motor: Direct drive
Power: 300 W
Speed: 1,350 rpm
Espresso productivity: Approximately 0.8–1.2 g/s
Filter productivity: Approximately 2.5–3.0 g/s
Bean-hopper capacity: 350 g
Height: 390 mm
Width: 124 mm
Depth: 192 mm
Weight: Approximately 6.5 kg
Fork: Tool-free adjustable for portafilters and dosing cups
Official dimensions, motor specifications, burr details, capacity, and grinding performance are supplied by Eureka.
The Libra gives you a repeatable amount of ground coffee.
It cannot automatically determine whether that dose produces the best-tasting extraction.
For espresso, monitor the complete recipe:
⚖️ Ground-coffee dose
Espresso yield
⏱️ Extraction time
⚙️ Grind size
🌡️ Water temperature
👅 Taste
A useful starting recipe might be:
18 g coffee → 36–45 g espresso
Use the Libra to control the 18-gram dose, but use an espresso scale beneath the cup to measure the beverage yield.
Sour, thin, or fast: grind finer or increase extraction.
Bitter, dry, or slow: grind coarser or shorten extraction.
Balanced, sweet, and expressive: save the grind setting and recipe.
Grind by weight gives you consistency.
Taste tells you whether that consistency is worth repeating. 👃
Although the Libra weighs the ground coffee, you still need a scale beneath the cup to measure espresso yield.
Use a responsive barista scale to monitor:
Dose in the grinder.
Yield in the cup.
Both are essential parts of an espresso recipe.
The optional Eureka Libra dosing funnel helps keep coffee inside the basket while grinding and during WDT distribution.
Recommended especially for:
☕ Larger 18–22 g baskets
⚙️ Fluffy light-roast coffee
🧰 WDT preparation
🧹 Cleaner work surfaces
⚖️ Reliable Grind-by-Weight operation
Evenly distributed coffee gives water fewer opportunities to create channels through the espresso puck.
Complete your puck preparation with:
The grinder creates the particles.
Good preparation turns them into an even espresso bed.
A precision grinder cannot compensate for contaminated equipment.
Combine the Libra with:
🧹 A proper grinder brush
💨 An air blower
🫘 Suitable grinder-cleaning granules
🧼 Cafetto EVO espresso cleaner
⬛ A correctly sized blind filter
🪥 A proper group-head brush
🚿 A group-head spray brush
Old coffee oils create bitter and rancid flavours. Regular cleaning allows fresh WB.coffee blends and single origins to taste the way they should.
A powerful 100% Arabica espresso blend with a syrupy body and impressions of chocolate, walnut, molasses, and dried plum.
Excellent for:
☕ Espresso
🥛 Cappuccino
🤎 Flat white
🍫 Mocha
Smooth, chocolaty, and praline-like, with flavour impressions of hazelnut, dried fruit, vanilla, and caramel.
A fantastic 100% Arabica specialty blend for espresso and milk drinks.
Sweet, smooth, and approachable for everyday espresso.
Caramel, fudge, roasted nuts, brown sugar, and milk chocolate.
The 65 mm burrs also make the Libra an interesting grinder for filter-focused WB.coffee blends and limited editions.
Try:
Smooth, balanced, and juicy for everyday filter coffee.
Aromatic, delicate, and expressive.
A balanced combination of fruit, sweetness, and comforting chocolate.
Explore how origin, variety, processing, altitude, and roast influence the final cup.
For filter brewing, grind into a dosing cup rather than directly into a portafilter.
During this hands-on workshop at Amsterdam Coffee Lab in Weesp, you learn how to:
⚙️ Dial in the grind
⚖️ Control dose and yield
⏱️ Understand extraction time
👅 Recognise under- and over-extraction
🫘 Adjust for different coffees
🧰 Improve puck preparation
🧼 Clean and maintain your equipment
Explore filter brewing with V60, immersion drippers, different papers, recipes, water temperatures, and grind settings.
Learn how to get greater sweetness, clarity, and consistency from your everyday filter machine.
The Libra offers precise tools.
Our workshops help you understand what to do with them.
The original Libra already solved one of the most annoying problems in home espresso: inconsistent timer-based dosing.
The Libra 65 All Purpose goes significantly further.
We particularly appreciate:
⚖️ Accurate Grind-by-Weight dosing
⚙️ Larger 65 mm All Purpose burrs
☕ Genuine espresso and filter capability
🎛️ The more practical King-Size Dial
🧼 Reduced retention from the Blind Upper Burr
🖐️ Compatibility with portafilters and dosing cups
✨ Eureka’s compact Mignon format
The ability to grind directly to a target weight makes daily espresso preparation faster and less wasteful. The larger dial and broader burr design also make the grinder more realistic for coffee lovers who want to explore filter coffee without purchasing a second machine.
It remains important to understand that changing brewing methods takes time and requires adjustment. But for a home barista looking for one compact, premium grinder that can cover almost everything, the Libra 65 is a particularly convincing solution.
Pair it with good water, a responsive espresso scale, clean equipment, and freshly roasted WB.coffee beans, and you have an exceptionally capable foundation for both espresso and filter coffee.
Looking for the Eureka Mignon Libra 65, a Grind-by-Weight coffee grinder, or premium home-barista equipment near Amsterdam?
At WB.coffee and Amsterdam Coffee Lab in Weesp, you can find:
⚙️ Eureka espresso and filter grinders
⚖️ Precision scales and dosing tools
☕ Espresso machines and barista accessories
🫘 Fresh WB.coffee blends and single origins
🛍️ Independent equipment advice
👅 Try-before-you-buy coffee tastings
🎓 Espresso and filter-coffee workshops
🥡 Specialty coffee from the tasting menu @ Amsterdam Coffee Lab
We help you choose a grinder based on your brewing methods, coffee preferences, available space, and daily workflow—not simply the longest specification list.
You can find Eureka in many (online) stores. So why choose WB.coffee?
A coffee grinder is the most important tool for any coffee lover. Even with the most fancy 5000 euro espresso machine you cannot make good coffee without a good grinder. With a good grinder however, you can make good coffee just with a bowl and a spoon and many brewing methods that cost less than 50 euro!
Would you buy it online without a test drive? At WB.coffee we provide dedicated personal shopping (read more below at the Try before you Buy section). We can advice you on which machine and set up suits you best. There are many factors to consider and what seems fancy and goodlooking grinder might not be the best option for you.
Questions we will ask you:
We are dedicated to offering you support with maintenance and cleaning, brewing advice, troubleshooting, choosing high-quality beans, and more. Whenever you need a replacement part or have any warranty issues, we are here to assist you.
Rest assured, we can order most brands and machines and we will have it for you in no time.
Book a Workshop, Masterclass, or a professional Coffee Skills Program course, authorized by the Specialty Coffee Association (SCA) at Amsterdam Coffee Lab, or elevate your skills with a customized course right at your home or office!
Check out the #extractmorewiththecoffeenose Espresso Routine and other tips from the CoffeeNose 👃
💡 Bonus tip: by tasting and dialing in different blends and single origin coffees you will learn to understand espresso extraction better and faster just by observing how different coffees grind, extract and taste....and don't just toss the puck. Inspect it and get your hands dirty!
roasted with 100% renewable energy ☀ and 0% gas
WB.coffee blends are roasted fresh on order. We roast with 100% renewable energy ☀ and 0% gas.
New lots arrive throughout the year.
Get in touch for what’s currently on the cupping table and receive personal flavour recommendations based on your taste.
Try four coffees at once with our Coffee Tasting Set — available in:
Explore our full tasting menu @ Amsterdam Coffee Lab in Weesp, where you can try any blend (or all of them 🏃)
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