How to Use This Grind Size Chart
Tap any brewing method above and the chart instantly shows you the ideal grind size, a visual texture preview, a familiar household comparison (like sea salt or breadcrumbs), the typical brew time, and what the grind should feel like between your fingers. It also shows you how to adjust if your coffee comes out bitter or sour.
Grind size is one of the most important and most overlooked variables in brewing. Two people using the same beans, water, and method can get completely different results purely because of grind. This chart gives you a reliable starting point for any method, which you can then fine-tune to your taste.
Why Grind Size Matters So Much
Grind size controls the surface area of coffee exposed to water, which in turn controls how quickly flavour is extracted. Finer grinds have far more surface area, so water extracts flavour quickly - perfect for a 25-second espresso shot. Coarser grinds have less surface area and extract slowly, which is why French press and cold brew, with their long steep times, need a coarse grind.
When the grind is wrong for the method, extraction goes wrong. A grind that is too fine for the method over-extracts, pulling out harsh, bitter compounds. A grind that is too coarse under-extracts, leaving the coffee weak, sharp, and sour. Matching grind to method is the foundation of good coffee.
Coffee Grind Size Chart by Method
| Method | Grind | Looks like | Brew time |
|---|---|---|---|
| Turkish coffee | Extra fine | Powdered sugar / flour | 3 - 4 min |
| Espresso | Fine | Table salt | 25 - 32 sec |
| Moka pot | Fine - medium | Between table and sea salt | 4 - 5 min |
| AeroPress | Medium-fine | Sand | 1:30 - 2:00 |
| Pour over (V60) | Medium | Sea salt | 2:30 - 3:30 |
| Drip machine | Medium | Sea salt | 5 - 6 min |
| Chemex | Medium-coarse | Coarse sand | 4:00 - 4:30 |
| French press | Coarse | Breadcrumbs | 4 min |
| Cold brew | Coarse | Breadcrumbs / kosher salt | 12 - 18 hrs |
The Household Comparison Method
Most home brewers do not have a way to measure grind size in microns, and grinder settings vary wildly between models. The most practical way to judge grind size is by comparing it to familiar household textures. Extra-fine is like powdered sugar. Fine is like table salt. Medium-fine is like sand. Medium is like sea salt. Medium-coarse is like coarse sand. Coarse is like breadcrumbs or kosher salt. This is the same reference system used by professional baristas when a precise grinder chart is not available.
Fixing Bitter and Sour Coffee with Grind
If your coffee tastes bitter, harsh, or dry, it is almost always over-extracted. The most common cause is a grind that is too fine for your method. Try going one or two steps coarser. If your coffee tastes sour, sharp, or weak, it is almost always under-extracted, usually from a grind that is too coarse. Try going one or two steps finer. Always change one variable at a time so you can tell what made the difference.