How to Dial In Your Grind Size
If your coffee tastes off — too sour, too bitter, too weak — grind size is usually the culprit. It's the most powerful variable you can adjust, and once you understand it, you'll be able to fix any brew in minutes.
Why Grind Size Matters
Grind size controls extraction — how much flavor the water pulls from the coffee. Too coarse and water flows through too fast, under-extracting (sour, weak, thin). Too fine and water lingers too long, over-extracting (bitter, harsh, dry).
The Grind Size Spectrum
| Grind | Texture | Best For |
|---|---|---|
| Extra Coarse | Sea salt | Cold brew |
| Coarse | Rough sand | French press, percolator |
| Medium-Coarse | Rough beach sand | Chemex, Clever Dripper |
| Medium | Regular sand | Drip machine, pour over |
| Medium-Fine | Table salt | Pour over (V60), AeroPress |
| Fine | Sugar | Espresso, Moka pot |
| Extra Fine | Flour | Turkish coffee |
How to Dial It In
Start with the recommended grind for your brew method, then taste and adjust:
- Tastes sour or weak? → Go finer (more extraction)
- Tastes bitter or harsh? → Go coarser (less extraction)
- Tastes balanced but weak? → Use more coffee, not a finer grind
- Tastes balanced but strong? → Use less coffee, not a coarser grind
Make one adjustment at a time and keep everything else the same — water temperature, dose, brew time. Changing multiple variables at once makes it impossible to know what worked.
Burr vs. Blade Grinders
A blade grinder chops unevenly, producing a mix of fine dust and large chunks that extract at different rates — resulting in a muddy, inconsistent cup. A burr grinder crushes beans between two surfaces for a uniform grind every time. If you're serious about coffee, a burr grinder is the single best investment you can make.
The Bottom Line
Grind size is your most powerful brewing tool. Learn your brew method's sweet spot, taste critically, and adjust one variable at a time. Pair that with freshly roasted beans from our Single Origin or Blends collection and you'll be dialing in perfect cups every time.
