What Grind Size Should I Use for Pour-Over Coffee?
Sep 14, 2026
Quick answer: Start around medium-fine to medium, then adjust by taste and flow. There is no universal pour-over grind size because grinders, coffees, filters, brewers and doses behave differently.
A useful rule is simple: if the cup is weak, thin or sharply sour, try a little finer. If it is slow, bitter and drying, try a little coarser. Then taste again.
Where should you start?
For many pour-over setups, medium-fine to medium is a sensible first attempt. That is a starting point, not a standard.
Do not copy a grinder number from another person unless they use the same grinder. “Setting 20” on one machine may have no useful relationship to “20” on another.
If you are brewing a larger dose, using a slower paper or working with a coffee that creates many fine particles, you may need to go coarser. A small one-cup recipe may work well a little finer.
What changes when you grind finer or coarser?
Finer
- Water usually meets more coffee surface.
- Extraction often becomes easier.
- The coffee bed usually offers more resistance.
- Drawdown often becomes slower.
Coarser
- Water usually meets less coffee surface.
- Extraction often becomes harder.
- The bed usually offers less resistance.
- Drawdown often becomes faster.
These are useful tendencies, not laws. A grinder produces a distribution of particle sizes, not identical pieces. The smallest particles are often called fines. They can slow flow even when the overall grind looks fairly coarse.
Fines are not automatically bad. They are a normal part of grinding and can help extraction. The problem is when the whole particle mix creates too much resistance or very uneven flow.
How to dial in the grind
- Use a repeatable recipe. Weigh coffee and water. Keep brewer, paper and pouring style stable.
- Start around medium-fine to medium.
- Brew and taste. Do not adjust from the timer alone.
- Look at the flow. Was it much faster or slower than your normal baseline?
- Make one small change. Then brew again.
| What you taste or see | Useful first move |
|---|---|
| Weak, thin or sharply sour; brew also runs fast | Try slightly finer. |
| Dry, bitter or rough; brew also runs very slow | Try slightly coarser. |
| Tastes good but finishes faster or slower than expected | Keep the grind. Record the result. |
| Slow but still sour or weak | Look for uneven flow, a fines-heavy grind or a poor ratio instead of blindly going coarser. |
| Fast but still bitter | Check roast, coffee-to-water ratio and uneven extraction before grinding much finer. |
Our brew-time guide explains why time is a clue, not a target. If the coffee is running unusually slowly or quickly, use the slow and fast troubleshooting guides.
Why does the right setting change?
The coffee changes
Different beans can break differently in the grinder. Roast and physical structure can change the mix of particles, so a setting that worked yesterday may not work for a new bag.
The dose changes
A larger dose creates a deeper bed and often more resistance. You may need a slightly coarser setting when scaling a recipe up.
The filter or brewer changes
Paper resistance and brewer shape affect flow. A new paper may require a new grind even if everything else stays the same. See our filter and dripper guide.
The pouring changes
Strong stirring, repeated hard swirls or a very energetic stream can move fines and change flow. A gooseneck kettle helps with control; see our kettle guide.
Can you copy micron charts or grinder settings?
They can be useful references, but they are not universal recipes. Grinder alignment, burr design, coffee and measurement method all matter.
Use numbers to record your own successful recipe. Do not treat them as proof that somebody else's setting must work for you.
Burr grinder or blade grinder?
A burr grinder generally makes pour-over easier to repeat because it controls the gap the beans pass through. A blade grinder can create a very broad mix of powder and large pieces.
Flat versus conical, hand versus electric, and steel versus ceramic do not decide quality on their own. Judge the grinder by the grounds it produces and the coffee you can brew with them.
For the difference between whole beans and pre-ground coffee, see our coffee beans vs ground coffee guide.
Frequently asked questions
Can I use espresso grind for pour-over?
Usually it is too fine and may create very high resistance. Start coarser and adjust.
Can I use French-press grind for pour-over?
It is often too coarse and may give a weak, fast cup. But taste the result before making a large change.
Do cone brewers always need a finer grind than flat-bottom brewers?
No. Brewer shape matters, but paper, dose, coffee and technique matter too.
Should dark roast always be ground coarser?
No. Roast level can change how coffee extracts and breaks apart, but there is no universal dark-roast setting.
Why is my grind “correct” but the brew still slow?
Filter paper, dose, agitation, brewer support and the amount of fines can all slow the brew.
Keep the useful rule
Use the grinder to change the cup, not to chase a label. Start in a sensible range, taste the coffee and move one small step at a time.
Continue with our coffee-to-water ratio guide, weak-coffee guide, sour-coffee guide, bitter-coffee guide, Japanese pour-over tools guide, or browse coffee tools.
