Battery espresso is booming, and whereas a model like Outin is stealing numerous the eye, the MiiCoffee Eon is a budget and versatile ticket in.
I’ve had my unit for a number of months, pulling resort pictures, journey pictures, and even a number of off-grid experiments.
This system has numerous stuff going for it (in addition to its low-cost worth) however there may be one essential draw back that you simply want to pay attention to!
Heads up: The overview unit was supplied by the model. They’ve had no affect on my testing process.
Fast Take
I just like the 51 mm basket, included funnel and palm tamper are good.
Construct is respectable, extraordinarily just like the opposite battery powered espresso makers available on the market. In all probability from the identical manufacturing facility? Related thermos-looking design. Related USB-C port that’s coated.


First Impressions
First pictures with a darkish roast have been okay, however I detected just a little little bit of a citric/acidic high quality to the shot. A observe that to me signifies a barely low extraction temperature.
After testing it with thermo {couples}, it confirmed my suspicion: My overview unit runs cooler than rivals. This have an effect on what roast sorts you’ll be able to brew with it.
Warmth-up to “prepared” is actaully very quick, it simply takes about 2:20 minutes from room-temp water. However I constantly measured brewing temperature to 85–88 °C within the reservoir, which suggests brewing temps can be within the low-mid 80s.
Darkish roasts are okay, medium and lighter roasts wrestle except you warmth water individually in a kettle.
Maybe that is simply my unit that’s barely mis-calibrated, who is aware of?


Pulling the shot can be a bit bizarre: When you maintain within the botton for 2 seconds it begins the heating. However as a substitute of simply progressing on to brewing as soon as temperature is reached, it should beep to point that it’s prepared after which it’s your job to double click on the facility button to activate the pump and pull the shot.
It has a pre-infusion mode that can’t be turned off. This may be both a professional or con, relying on who you ask.
How It Suits within the Market
Amongst battery espresso devices, the Eon is an effective price range choose. Particularly, when you can stay with the marginally weaker built-in heating. It’s cheaper than most different manufacturers, however in some ways very related.
In case you’re primarily going to make use of a kettle to boil the water, the decrease temperature from the built-in heater isn’t any huge deal. So let’s say you’re going to make use of the Eon in an workplace or a resort, then the efficiency needs to be simply nearly as good as with the dearer flagship manufacturers.
It makes use of the 51 mm portafilter format, which is a candy spot when you ask me: accent selection is broad, extraction is forgiving, and so is dose flexibility.


Temperature check
| Shot # | Temp (°C) | Time to temp |
|---|---|---|
| 1 | 87.0 | 2:23 |
| 2 | 85.0 | 2:15 |
| 3 | 85.2 | 2:16 |
| 4 | 84.9 | 2:18 |
| 5 | 57.0 | battery died mid-shot |
Specs
- Weight: 729 g / with equipment 855 g
- Basket: 51 mm (Upgradeable to IMS)
- Battery: 7500mah rechargeable lithium-ion
- Battery: Anticipate 4 heated pictures (60 ml in water tank) earlier than battery dies
What I Preferred
- 51 mm ecosystem: straightforward to seek out baskets, tampers, puck screens
- Included funnel + palm tamper are literally fairly good and made from steel
- Nice tasting pictures if utilizing a kettle for heating water
- Cheaper than rivals
What I Didn’t
- Constructed-in heater shuts off round 85-88 celsius, which is simply too low
- Doesn’t activate pump after heating cycle is completed
- Pre-infusion can’t be turned off
Unresolved Questions
- Unit variance: is my thermostat calibration typical or a chilly outlier?
First Sip Verdict
If you’ll principally brew with pre-heated water from a kettle, purchase with confidence: the Eon turns into a legitimately succesful 51 mm journey espresso maker.
In order for you true off-grid heating, skip it, because the cooler brew temp is the ceiling you retain hitting.
I’d suggest it to espresso nerds who maintain a kettle close by; to not off-the-grid espresso geeks.
The basics are good and a model that reliably hits increased temps could be an prompt best-value choose.