The catch
Eureka Mignon Libra 55 mm
It has just two programmed weight targets. A third recurring dose has to be adjusted, since there is no third dedicated button.
Side by side
Sette 270Wi is the pick when three dose weights you use regularly deserve their own buttons and you will keep at least two doses of beans in the hopper as instructed. Libra is the pick when two targets cover the household and you like its stepless Mignon espresso workflow. Neither recalls grind settings along with the dose. Sette is the wrong choice for isolated preweighed portions of regular and decaf, since its manual expressly advises against single dosing. Libra also calls for a checked portafilter fit, and its original handbook documents a ten-second insertion window.
Before you buy
Picture one person at 16 g, another at 18 g and a third at 20 g. Sette can hold all three targets. Libra holds two, so the third has to be edited. That advantage vanishes when everyone uses the same input weight or only two recipes recur. Nor does it automate a change of beans or grind size. A household with regular, decaf and filter coffee still has to handle those changes itself. Count the recurring weights before you pay for another memory button.
Where this comes from
The 16, 18 and 20 g recipes are illustrations, set against two and three saved targets. The manuals treat dose weight and mechanical grind adjustment as different things. Those doses are not recommended for every basket.
The catch
It has just two programmed weight targets. A third recurring dose has to be adjusted, since there is no third dedicated button.
The catch
Its adaptive stopping relies on hopper-fed throughput and previous cycles, which is why the manual advises against single dosing.


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Libra against Sette 270Wi for shared espresso. The page sets two weight presets against three, looks at pause recovery and explains why a preweighed decaf dose doesn’t fit the Sette routine.
Each can stop an espresso dose by weight, which makes them real alternatives for buyers who want to replace a separate dose-weighing step. Their controls and operating requirements count for more than the scale headline they share.
Which one fits
Sette stores three weights and Libra stores two. Grind adjustment stays separate.
That routine gains little from the third Sette memory.
That workflow is rejected by Sette’s manual. How Libra performs with isolated doses is not established here.
Recovery is documented for both, and each has its own starting and pause controls to learn.
In practice
Picture one person at 16 g, another at 18 g and a third at 20 g. Sette can hold all three targets. Libra holds two, so the third has to be edited. That advantage vanishes when everyone uses the same input weight or only two recipes recur. Nor does it automate a change of beans or grind size. A household with regular, decaf and filter coffee still has to handle those changes itself. Count the recurring weights before you pay for another memory button.
The 16, 18 and 20 g recipes are illustrations, set against two and three saved targets. The manuals treat dose weight and mechanical grind adjustment as different things. Those doses are not recommended for every basket.
When you portion beans into small containers so two people can alternate regular and decaf, 270Wi works against that plan. Its manual says the adaptive system cannot dose accurately or consistently from a single loaded portion, and it asks for at least two doses in the hopper. A larger hopper helps with repeated drinks from one bean but not with keeping separate portions separate. Libra’s different weighing system is no evidence that it solves this without testing. If that is your central requirement, compare a purpose-built single-dose grinder.
Sette has an explicit operating restriction here. How Libra performs with single doses is still unknown, so no advantage is invented from documentation that is missing.
If someone is called away partway through preparing, the recovery button matters. On Sette, PAUSE preserves progress and STOP goes back to the chosen target. The handbook also documents short bursts when a grind is interrupted within five grams of its target. Libra documents pause and resume, along with a separate FH reset after a delayed start. These controls can help in a shared kitchen, but teach people the sequence instead of assuming a new person should press the same dose button again. Which system recovers more accurately has not been measured.
This describes control behavior specific to each manual. The five-gram condition is Sette’s recovery rule and not a dosing tolerance. The Libra insertion timeout is a different matter from pausing an active dose.

Eureka, Mignon Libra 55 mm
Your regular espresso drinks are covered by two weight targets, and the Mignon’s stepless adjustment is the one you prefer.

Baratza, ZCG1279
Editing a saved target would be needed otherwise for your three recurring dose weights.
Spec by spec
| Spec | Eureka Mignon Libra 55 mm | Baratza Sette 270Wi | In practice |
|---|---|---|---|
| Weight memories | Two | Three | On Sette, a household with three regular input weights does not have to keep re-editing a button. |
| Adjustment structure | Stepless micrometric knob | Macro collar plus stepless micro collar | No dose button moves these controls or recalls a recipe’s grind setting. |
| Preweighed single portions | No single-dose performance verified in this comparison | Manual says not to single-dose, keep two or more doses in the hopper | A grinder with a scale does not automatically suit separate daily bean portions. |
| Interrupted dose | Documented pause and resume, plus FH insertion recovery | PAUSE resumes the same target, STOP resets the cycle | Show the other user the right control first, and do not assume a saved dose makes handover foolproof. |
| Grinding platform | 55 mm flat burrs | 40 mm conical burrs | The burr geometry and the operating conditions are different, so the numbers alone cannot rank flavor or sound. |
Trade-offs
Change of plan
Go with Baratza Sette 270Wi. A real repeated action is what the extra preset serves.
Go with Eureka Mignon Libra 55 mm. Decide on the handling you prefer. Ignore preset capacity you will not use.
Neither model fits. Sette expressly advises against them, and Libra has not been verified to meet that requirement.
Decision guide
One-touch drinks for several people are the goal, yet a saved dose covers only part of each recipe. Extra weight buttons won’t automatically handle different beans or grind settings.
By the numbers
What we found across the premium coffee grinders we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Eureka Mignon Libra 55 mm |
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| Baratza Sette 270Wi |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Your regular espresso drinks are covered by two weight targets, and the Mignon’s stepless adjustment is the one you prefer.
The original Libra portafilter insertion sequence is fine with you, and you have verified how the basket and funnel fit.
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Editing a saved target would be needed otherwise for your three recurring dose weights.
Two or more doses stay in your hopper, and you want the documented pause, resume and near-target recovery controls.
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