Which to buy · Every setting
Fellow Opus vs Wilfa Uniform
Conical against flat — the Opus's scale curves where the other runs straight. The Opus is numbered 1–11; the Uniform is numbered 1–41.
Which to buy
Choose the
Opus if you…
- want an inner ring for micro-adjustment between the 41 dial settings
- want a timed auto-stop at 30, 60, 90 or 120 seconds
- grind more than one dose at a time — it holds 110 g
Choose the
Uniform if you…
- want 58 mm stainless steel flat burrs
- want a 75 g bean capacity and a sensor that stops it when the last bean is ground
- want a five-year warranty
Shop links are affiliate links: BrewMark earns a commission if you buy through one, at no extra cost to you. The verdicts were written without regard to it.
Fellow now sells the Opus 2 in place of the original; the settings on this page are for the original.
Sources: Fellow — Opus (archived) · Fellow — Opus gear guide · Wilfa — Uniform · Wilfa UK — Wilfa Uniform Coffee Grinder
| Opus | Uniform | |
|---|---|---|
| Brand | Fellow | Wilfa |
| Scale | Numbered dial | Numbered dial |
| Dial range | 1 – 11 | 1 – 41 |
| Burrs | Conical | Flat |
| Espresso → filter | 5.7 numbers | 27.4 numbers |
| Filter → coarse | 3.9 numbers | 7.6 numbers |
The same number means different things
Both grinders use a numbered dial, which makes it tempting to copy a number straight across. Setting 6 sits at grind index 34.2 on the Opus but 14.4 on the Uniform — far enough apart to change the cup.
Converting a setting
If a recipe quotes a setting for one of these grinders, read across for the equivalent on the other. Rows are spaced evenly by grind size, not by dial number — on a conical burr those are not the same thing.
| Opus | Uniform |
|---|---|
| 1.2 | 1 |
| 2 | 8 |
| 3.2 | 15 |
| 5.3 | 23 |
| 7.1 | 28 |
| 8 | 29 |
| 8.2 | 29 |
| 8.3 | 29 |
| 9.1 | 30 |
| 9.3 | 32 |
| 10.2 | 34 |
| 11 | 36 |
| Uniform | Opus |
|---|---|
| 1 | 1.2 |
| 4 | 1.2 |
| 8 | 2 |
| 15 | 3.2 |
| 23 | 5.3 |
| 28 | 7.1 |
| 29 | 8 |
| 30 | 9.1 |
| 32 | 9.3 |
| 34 | 10.2 |
| 36 | 11 |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | Opus | Uniform |
|---|---|---|
| Espresso | 1.2 | 3 |
| Moka pot | 1.3 | 6 |
| AeroPress (short steep) | 3.2 | 15 |
| Pour over — V60 / cone | 6.3 | 27 |
| Siphon | 7.2 | 28 |
| Pour over — flat bottom | 7.3 | 29 |
| Steep and release — Clever / Switch | 8 | 29 |
| Drip / batch brew | 8 | 29 |
| Cupping | 8 | 29 |
| Chemex | 8.2 | 29 |
| French press | 9 | 30 |
| Cold brew | 10 | 33 |
The shape of each dial
Where the connectors bunch, that grinder’s dial is compressed and single steps count for more. Comparing the two shapes tells you which gives finer control, and where.
Fellow Opus
Wilfa Uniform
Dialing in the Opus
Marketed as all-purpose, and it genuinely does cover more range than the Ode, but the espresso end is workable rather than good — expect to chase it. Where it earns its place is the coarse end: cold brew and French press come out notably even. If you bought the Opus mainly for espresso, dial it as a brew grinder first and judge it there.
Dialing in the Uniform
Designed with Tim Wendelboe for filter coffee, and honest about it. Forty-one settings across a wide range, flat burrs, and a grind that is genuinely clean in the brew band it was built for. It does reach espresso fineness — but the step size is the problem rather than the range: reviewers report landing between settings, where one step chokes the basket and the next runs fast, with only a narrow window in between. Treat occasional espresso as possible with technique rather than as something the grinder is for. For pour over, which is the job, it is one of the better flat-burr options at the price.