Hand grinder

Cold brew grind setting for the Kinu M47 Simplicity

5.1–6

That is where to start with a light roast. It should come out looking like coarse sea salt. Medium roasts go to 5.6–6.5 and dark roasts to 6–6.9.

Kinu M47 Simplicity, set for a light roast

The setting, by roast

Lighter roasts are harder to pull flavor out of, so they grind a little finer and steep longer. Darker roasts go the other way. The dial runs from 0 to 9.

RoastSettingLooks likeSteep in the fridge
Light roast5.1–6coarse sea salt18–22 h
Medium roast5.6–6.5coarse kosher salt14–18 h
Dark roast6–6.9raw sugar10–14 h

Where the number comes from

People who own one report 3.6–8.5. Our starting point is 6 for a medium roast, and it moves with the roast.

Owner reports: prima-coffee.com, coffeeforums.co.uk

If you changed the burrs

Different burrs cut differently at the same number. Here is where each set starts.

Burr setLightMediumDark
Stock 47mm conical burr5.1–65.6–6.56–6.9
Kinu Pour Over replacement burrSame thread pitch as stock (no dial shift), but a re-profiled geometry Kinu/Prima market as more consistent through the medium-to-coarse range used for cold brew and pour-over.5.1–65.6–6.56–6.9

How to use it

  1. Set it. Set the dial to 5.1–6. That is the light roast setting. Use the table above for anything darker.
  2. Grind and look. You want pieces about the size of coarse sea salt. Coarse settings go quickly by hand.
  3. Steep. Give it 18–22 hours in the fridge, or 12–14 on the counter.
  4. Taste and adjust. Too bitter? Go coarser next time. Too sour? Go finer. Move about 0.9 at a time.

Let the app keep track.

Cold Brew Studio shows the dial created for your Kinu M47 Simplicity with the setting marked, sizes the batch to your brewer, and moves the dial for you when you rate how it tasted.

Free on iPhone and the web. No account needed.

Quick answers

What grind setting should I use for cold brew on the Kinu M47 Simplicity?
Start at 5.1–6 for a light roast, 5.6–6.5 for a medium roast and 6–6.9 for a dark roast.
How long should I steep cold brew ground on the Kinu M47 Simplicity?
18–22 hours in the fridge for a light roast, 14–18 for medium and 10–14 for dark. On the counter it goes faster: 12–14, 9–12 and 7–9 hours.
What should the grounds look like?
Coarse. About the size of coarse sea salt for a light roast, coarse kosher salt for medium and raw sugar for dark.