extra coarse grind · 800-1500 microns
Fellow Opus grind setting for cold brew
Start at 10.5 on the Fellow Opus for cold brew, and stay inside 10-11. Brew at 1:8 for 12-18 h.
- Ratio
- 1:8
- Time
- 12-18 h
- Water
- fridge or room temp
Taste, then fix
If it tastes wrong
| It tastes | Why | Do this on the Opus |
|---|---|---|
| Bitter, woody | Grind too fine or steeped too long | Go coarser or cut the steep to 12 hours |
| Weak, tea-like | Too little coffee or too short a steep | Use a 1:7 concentrate or steep to 16-18 hours |
| Cloudy, gritty | Fines passing the filter | Go coarser and filter a second time through paper |
What you are aiming for
Cold brew steeps for hours, so it takes the coarsest grind your grinder makes. Dilute the concentrate about 1:1 to serve.
On the Fellow Opus, 10.5 is the documented start. If your grounds look much finer or coarser than this, your grinder may be calibrated differently: trust the taste, then the number.
Fix the beans too
Better cold brew starts with fresher beans.
The right grind only gets out what the beans have. A subscription keeps fresh coffee arriving before you run out.
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More Fellow Opus settings
Cold brew on other grinders
Questions
What grind setting should I use on the Fellow Opus for cold brew?
Start at 10.5 on the Fellow Opus for cold brew, and stay inside 10-11. Brew at 1:8 for 12-18 h.
My cold brew tastes sour on the Fellow Opus. What do I change?
Sour means under-extracted. Go coarser or cut the steep to 12 hours. Change one thing at a time and taste again.
My cold brew tastes bitter on the Fellow Opus. What do I change?
Bitter means over-extracted. Use a 1:7 concentrate or steep to 16-18 hours.
Source
cdn.shopify.com, fellowproducts.com, help.fellowproducts.com. Settings are starting points; two grinders of the same model can sit a step or two apart.