coffee grind size chart: a setting for every brew method

coffee society journal — brew better

by sherry quach, founder & roaster at coffee society · berkeley, ca

the short answer

Grind size controls how fast water extracts flavor: finer grinds extract faster, coarser grinds slower. Match the grind to the contact time of your brewer — seconds for espresso, minutes for pour over, half a day for cold brew — then fine-tune by taste. Here's the chart, plus two taste rules that will matter more than any chart once you've brewed a few rounds.

01the chart

espresso — finefiner than table salt, almost powdery · 25–30 s contact
moka pot — fine-mediumjust coarser than espresso · avoid powder, it turns bitter
pour over — mediumlike coarse sand or kosher salt · 2:30–3:30 brews
drip machine — mediumsame neighborhood as pour over · start mid-dial
french press — coarselike breadcrumbs · 4-minute steep, plunge gently
cold brew — extra coarsethe coarsest your grinder goes · 12–18 hour steep

02the two taste rules

A chart gets you close. The last step you find by taste. Sour, thin, or watery → grind finer. The water ran through too fast and left flavor behind. Bitter, harsh, or drying → grind coarser. The water lingered too long and pulled out the bitter flavors that come last. Move one step at a time, change nothing else, and taste again — two or three brews and you'll have it.

03why the grinder outranks the brewer

  • Uniformity is everything — a burr grinder cuts beans to a consistent size so they extract together. Blade grinders make dust and boulders that brew sour and bitter at once.
  • Grind right before brewing — ground coffee stales in minutes-to-days, not weeks. Whole bean plus a decent burr grinder beats pre-ground through any machine.
  • Fresh beans make grind adjustable — stale coffee tastes flat at every setting, which is why no grind chart can rescue it.

04common questions

Can one grinder handle espresso and pour over?

Many can, but espresso demands tiny adjustments between fine settings — if you brew both daily, stepless or small-step grinders earn their keep.

What grind setting for a Breville Barista Pro?

Start mid-range and adjust by the taste rules above — our full dial-in guide for Breville machines walks through it shot by shot.

Is pre-ground coffee ever OK?

For drip in a pinch, sure. But grinding fresh is the single cheapest upgrade in coffee — it outperforms most gear purchases ten times its price.

fresh beans, worth grinding well

Fresh Q graded 85+ single origins, roasted to order in Berkeley, CA and shipped whole bean within 24 hours — with the recommended brew method on every bag.

coffee subscriptions breville dial-in guide why beans need rest

coffee society · specialty micro roaster · berkeley, ca · est. 2023

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