Medium grind is wrong for most pour-over drippers. The real starting point is medium-fine, somewhere between table salt and kosher salt, and the exact spot depends on your dripper.
A V60 wants a finer grind than a Kalita Wave, and a Chemex wants coarser than both. According to the National Coffee Association’s brewing guidance, pour-over generally starts at a medium grind, then gets adjusted from there based on taste and brew time.
The Specialty Coffee Association’s filter drip brewing guidelines place this range at 500 to 850 microns, covering medium to medium-fine particle sizes for a contact period of roughly 2.5 to 4 minutes. That range is wide on purpose. Your dripper’s shape, your filter’s thickness, and how fast you pour all push the right setting toward one end or the other.
What “Medium-Fine” Actually Feels Like
Grind size is how coarse or fine the coffee particles are after grinding. For pour-over, the target texture sits between table salt and kosher salt, finer than beach sand but coarser than powdered sugar.
Rub a pinch between your fingers. If it feels smooth and slips through easily like fine table salt, you’re on the fine side of the range.
If it feels grainy and slightly rough like kosher salt, you’re on the coarser side. Both are normal starting points for pour-over. A reliable burr grinder makes this consistency much easier to hit than a blade grinder, which chops unevenly and leaves a mix of dust and chunks in the same batch.
A flat burr home grinder gives you repeatable settings so you’re not guessing every morning.
Key Specifications to Look For in a Pour-Over Grinder
- Burr type: 3 to 5 lines
- Setting range: stepped or stepless dial
- Hopper capacity: enough for daily single-cup dosing
- Consistency: minimal fines and boulders at medium-fine
Once you know what the texture should feel like, matching it to your specific dripper is the next step.
Grind Size by Dripper Type
Different pour-over drippers control water flow differently, and that changes the ideal grind. A conical dripper like the Hario V60 has a large single hole and a steep angle, so water drains fast, which calls for a finer grind to slow it down enough for full extraction.
A flat-bottom brewer like the Kalita Wave restricts flow through smaller holes, so it generally sits slightly coarser than a V60. The Chemex uses a thick, bonded filter paper that already slows the pour on its own, so its grind tends to run coarser than both.
Use the table below to match your dripper to a sensible starting grind.
| Dripper | Starting Grind | Texture Reference |
|---|---|---|
| Hario V60 | Medium-fine | Table salt to fine sand |
| Kalita Wave | Medium | Granulated sugar |
| Chemex | Medium-coarse | Rough sea salt |
| Clever Dripper | Medium | Table salt to sea salt |
These are starting points, not fixed rules, because grinder calibration and filter batch can shift them slightly. The dripper decides your baseline, but your actual brew tells you if that baseline is right.
How to Adjust Based on Taste and Brew Time
Taste is the most reliable signal, and total brew time is a useful backup check. A sour, sharp, or thin cup can indicate under-extraction, meaning water moved through the grounds too quickly to pull out enough flavor.
Grind finer to slow the water down and increase contact time.
A bitter, dry, or harsh cup can indicate over-extraction, where the water pulled too much out of the grounds. Grind coarser to speed up the flow and shorten contact time.
If your brew finishes noticeably fast for your recipe, that often lines up with the same sour, weak result, so treat it the same way and go finer. If it stalls, pools on top, or drags on far longer than expected, that usually pairs with the bitter, over-extracted result, so go coarser.
Adjust in small steps and brew again before making a second change, since one wrong signal can send you too far in either direction.
Roast level shifts things slightly too. Light roasts are denser and often benefit from a touch finer, while dark roasts are more porous and tend to over-extract if ground too fine, so a touch coarser helps avoid harsh, smoky bitterness.
Taste-based adjustment works for any grinder, but knowing roughly where popular models land can save you a few test brews.
Starting Points for Popular Grinders
Grinder settings are not universal, since each brand uses its own dial numbers or click counts. A “12” on one grinder is not the same particle size as a “12” on another.
Treat any specific number as a starting point for that exact model, then adjust from your own taste results. If you brew a single cup with a moderate dose, expect to land somewhere in the medium to medium-fine range on most consumer burr grinders, then fine-tune from there.
A manual hand grinder with stepped settings makes it easy to write down your number once you find it, so you’re not recalibrating every time.
A good scale with a built-in timer also helps you track drawdown time alongside the grind setting, so you can tell which variable actually caused a change in the cup.
This is also where pour-over parts from other brewing methods. If you’re comparing setups, French press grind requirements run noticeably coarser because immersion brewing uses a metal filter and a longer steep time, not a paper filter and a steady pour.
Grind size is the main driver of flow and extraction speed, but dose, water temperature, and pour technique also shape the final cup, so a setting that works for one recipe may need a small nudge for another. Once you’ve locked in a grind that tastes balanced for your dripper, write the setting down.
Why Grind Size Controls Your Brew
Grind size controls two things at once: surface area and flow resistance. A finer grind exposes more surface area to water, which speeds up extraction.
A coarser grind lets water move through faster but pulls less flavor from each particle in the same amount of time. Extraction is the process of dissolving flavor compounds out of the ground coffee into the water, and grind size is one of the main variables that controls how much gets pulled out in your brew time.
This is why two people using the same beans and the same recipe can get different results from different grinders. The connection people usually miss is that a “wrong” grind and a “wrong” pour technique often produce the exact same sour or bitter symptoms, so changing your dose or water temperature first, before checking grind, can send you chasing the wrong fix entirely.
If you’ve dialed in grind and the cup still tastes off, look at your pour rate and bloom time before assuming the grind setting is the problem.
If you brew other methods too, the setting will look completely different. AeroPress grind settings vary by immersion time, and if you ever brew drip coffee on the side, standard drip machine grind guidance lands close to pour-over but isn’t identical.
Understanding this relationship is what lets you fix a bad cup with one confident adjustment instead of guessing at three variables at once.
Quick Recommendation
Start at medium-fine, textured like table salt, and adjust based on your specific dripper. Go finer if your cup tastes sour or drains fast, and go coarser if it tastes bitter or drains slowly.
Test one small change at a time and let taste, not a fixed number, decide when you’ve found the right setting for your setup.