Specs
| Dial | Lockable 25 µm steps, with one unmarked step between markings. Each step is 5 to 6 s of shot time 0:31 9:42 |
Where sources disagree
The creators don't all give the same figure here, so every value is listed with the person who gave it.
| Field | Value | By | Source | Note |
|---|---|---|---|---|
| Adjustment | stepped (lockable, 25 µm) | DGC | 0:31 | |
| Adjustment | stepless | Chronicler | 1:03 | ten numbered steps, stepless between |
| Adjustment | summary | Daddy Got Coffee describes lockable 25 µm steps. The Coffee Chronicler describes a numbered dial that's stepless between the numbers. |
Starting settings
These are the settings each creator gave, measured from their own grinder's zero. Use them as a starting point.
| Method | Setting | Context | Confidence | By | Source |
|---|---|---|---|---|---|
| Pour-over | around 7 | 16 g at about 90 rpm | approx | DGC | 10:44 |
| Espresso | about 1.5 | With RDT. About 32 s, with a milk-chocolate body | approx | DGC | 12:47 |
| Espresso | just under 2 | 15 g of an omni roast at maximum speed, 14.9 g out | approx | Chronicler | 4:06 |
| Espresso | 0 | Very light roasts may need to go all the way to zero | approx | Chronicler | 8:25 |
Cup profile
- Forgiving and flattering across roasts. Low rpm gives clearer espresso and high rpm rounder, sweeter shots. Filter tasted better near 90 rpm 0:31 11:14 12:14.
Strengths
Weaknesses
Verdict
In 2024 Daddy Got Coffee found it made great, forgiving cups, with the workflow quirks of a first version 0:31.
The Coffee Chronicler's take
- In 2023 he found it made thick, sweet, rounded espresso from its 83 mm twelve-sided cones with a spinning outer burr. Light roasts come out gently sweet, and filter is fine without being special. It has about 0.1 g retention, auto-stop, easy cleaning and 90 to 150 rpm. Espresso is squeezed into the fine end of a ten-number dial, it stalled once at its lowest speed and the shaker cup spills. It's expensive 1:03.
Sources
- The Coffee Chronicler: Is the new Mx COOL ARIES grinder worth it? (2023-10-18)
- Daddy Got Coffee: Mx. Cool ARIES Grinder: BIG Burr Energy (2024-01-27)
Summarised in our own words from the creators' videos, with every point linked to the moment it comes from. Notchbook isn't affiliated with or endorsed by any of these creators, so please watch the originals for full context. Sources
Dialling in from here
- Sour, thin or fast? Grind finer. Why coffee tastes sour
- Bitter, dry or slow? Grind coarser. Why coffee tastes bitter
- Espresso: how to dial in. Filter: pour-over grind size.
Compare with other grinders in the grind size chart, or see every grinder.
Notchbook is a free app that remembers the setting that worked on your Mx. Cool Aries for each coffee and brew method, and keeps a journal of every brew. Get it free on Google Play. The iPhone app is coming soon. More about Notchbook.