I recently received a new device for making cold brew coffee. It put out a really good cold brew. The filter is made out of a fine nylon mesh.

How coarsely (or finely) should the coffee be ground for best cold-brew extraction?

  • 1
    This is a bit broad, you need to narrow this down a bit, plus there are a couple cold brew questions already: coffee.stackexchange.com/questions/tagged/cold-brew
    – EdChum
    Feb 23, 2015 at 21:18
  • 2
    Welcome to Coffee! Your question doesn't quite fit the Q/A style of Stack Exchange; please take a minute to take the tour and look at the help center. How about restricting to "What characteristics of beans are best suited to cold-brew?" I'd be happy to change this around as an example; let me know. See also: this question talks about grind; other questions tagged cold-brew.
    – hoc_age
    Feb 23, 2015 at 21:30
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    As an example, I trimmed your question down to just one question and formatted it in a way that I'd suggest for this site; hope you don't mind. +1 for an interesting topic, about which we didn't yet have a question!
    – hoc_age
    Feb 24, 2015 at 2:17
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    Thanks for the suggestion. I'm learning the ropes. I appreciate your guidance.
    – Roland
    Feb 25, 2015 at 6:00

2 Answers 2


Two guides do have specific (though differing!) recommendations on coarseness of grind for cold brew.

Personally, I use the latter because I find the filtering goes more easily with a coarser grind; see also this question about making cold brew easier to filter.

This question also discusses the grind. See also related questions with the tag .


In addition to the above listed guides I have also found another two to answer your question.

Prima Coffee recommends a medium to fine grind. They are using an AeroPress with 2 filters. They do suggest that at least one of those filters are paper.

ChestBrew has a how-to video that demonstrates the process of making cold brew from start to finish. Their whole bean coffee packaging suggests a medium coarse grind.

My husband and I are huge cold brew coffee fans and we prefer the second option because we've found that too fine a grind makes the coffee taste burnt and too harsh a grind makes the coffee too bitter. The medium coarse seems to make it just right. However, we use a pitcher and a milk bag to make our cold brew which I feel may make a difference in overall taste as compared to the device you referenced in your question.

Hope this helps and good luck!

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