Pour-Over Grind Size Chart: V60, Kalita & Chemex Settings

Start With the Brewer, Then Use Taste to Finish the Grind

Pour-over grind charts are useful only when they are treated as starting points. “Medium” is not a universal particle size, and two grinders can produce noticeably different distributions at settings that carry the same label. Brewer geometry, paper thickness, dose, coffee density, pouring pattern, and the amount of fines produced by the grinder all change the drawdown.

The most reliable approach is to use a brewer-specific starting texture, hold the rest of the recipe stable, and then move the grinder in small steps based on taste and flow. A fast V60 that tastes hollow is asking for a different correction than a slow Chemex that tastes balanced. The chart gets you close; the cup tells you when to stop adjusting.

Pour-Over Grind Size Chart

Those time ranges are diagnostic context, not pass/fail targets. A coffee that tastes balanced outside the range does not need to be forced back toward a number. Conversely, a brew that lands inside the range but tastes sour, drying, or flat still needs adjustment.

Why Grind Size Changes Both Flow and Extraction

Smaller coffee particles expose more surface area and pack more tightly, so water tends to move through the bed more slowly and extract more material. Coarser particles create larger pathways, increasing flow and usually reducing extraction for the same dose, ratio, and pouring pattern. That is why grind is the first variable to adjust when a brew is consistently too fast or too slow.

The relationship is not perfectly linear because fines can migrate toward the filter and create localized resistance. A grinder that produces a large amount of powder can make a nominally “medium” setting behave much slower than a cleaner grinder at a visually similar texture. This is also why grinder quality changes how transferable grind charts are.

Filter flow matters too

Match the filter to the brewer before you blame the grind

Paper thickness and shape change flow resistance, so the same grind can behave differently across a V60, Kalita Wave, and Chemex. These are the brewer-specific filters referenced in the guide.

V60 02 Paper FiltersThin cone paper with relatively open flow, which often pairs with a medium-fine starting grind.View on Amazon → Kalita Wave 185 FiltersFlat-bottom wave filters add their own flow characteristics and should be dialed independently from cone brewers.View on Amazon → Chemex Bonded FiltersThicker paper creates more resistance and often calls for a coarser grind than smaller cone brewers.View on Amazon →

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Why V60, Kalita, and Chemex Do Not Use the Same Grind

The V60 has one large drain opening and relatively open paper, so much of the flow control comes from the grind and the way water is poured. A medium-fine starting point gives the coffee bed enough resistance to prevent water from racing through, while still leaving room to go coarser if the brew stalls. Our Hario V60 recipe pairs this starting grind with a complete dose, bloom, and pour schedule.

The Kalita Wave uses a flat bed and three smaller drain holes. That geometry builds more resistance into the brewer, so a slightly coarser starting point than many V60 recipes can produce a similar total contact time. The flatter bed also makes the brewer somewhat less sensitive to small pouring differences.

The Chemex changes the system most dramatically because the bonded paper is much thicker. Its filter retains more oils and fines and adds substantial flow resistance. That is why Chemex recipes often begin coarser, particularly when the batch is larger than a typical single-cup V60 brew.

How Dose and Batch Size Shift the Starting Grind

A grind setting that works well for a 15-gram single-cup brew may not behave the same way when the dose doubles. A deeper coffee bed creates more resistance, so larger batches often need a slightly coarser grind to keep flow from slowing excessively. This effect is especially noticeable in brewers with thicker paper or limited drainage.

The practical lesson is to treat grind as part of a complete recipe. If you scale from 20 grams of coffee to 30 or 40 grams while keeping the same brewer, do not assume the old setting will transfer unchanged. Start near the original setting, watch the drawdown, and be prepared to move coarser if the larger bed stalls or develops a drying finish.

Roast Level Changes How Aggressively You Need to Extract

Roast level does not dictate one exact grind size, but it changes the starting direction. Lighter coffees are generally denser and less soluble than darker coffees, so they often respond well to a somewhat finer grind, hotter water, or both. Darker coffees extract more readily and can become harsh when the grind is too fine or the brew is too hot.

That does not mean every light roast should be ground fine or every dark roast coarse. Grinder quality, bean density, processing method, age, and brewer design can all move the ideal setting. Roast level is best used as a first nudge, not a fixed prescription.

A Three-Brew Calibration Method Is More Useful Than Chasing Grinder Numbers

The fastest way to find a workable setting is to run a controlled three-brew test. Keep coffee dose, water amount, water temperature, filter, and pouring pattern the same. Change only the grinder. That creates a clean comparison instead of a moving target.

For the first brew, use the chart’s starting texture. Record the total drawdown and one short taste note. If the cup is clearly under-extracted, move one or two small steps finer for brew two. If it is clearly drying or bitter, move one or two steps coarser. Brew three should be a smaller correction in the direction that improved the cup.

This method is intentionally simple. It does not guarantee a perfect recipe in exactly three attempts, but it usually tells you which side of the useful range you are on. Once the grind is close, smaller changes in water temperature, ratio, or pouring can refine the cup without losing the baseline.

Use Taste to Decide Which Direction to Move

Taste should be interpreted together with drawdown. A sour cup that also drains extremely quickly strongly points toward a finer grind. A sour cup with a very slow drawdown may indicate channeling, poor saturation, unusually cool water, or another problem that grind alone will not fix.

Brewer-Specific Dial-In Examples

The same flavor problem can require a different-size adjustment depending on the brewer. An open V60 reacts quickly to grind changes because the drain offers little built-in restriction. A Kalita Wave already has more flow resistance, so a small move can be enough. Chemex combines a larger dose with thick paper, making overly fine grinds especially likely to create long drawdowns.

Read Drawdown as a Diagnostic, Not a Target

Brew time is useful because it tells you how the coffee bed and filter are behaving, but it should never override taste. A V60 that finishes outside a published time range can still be excellent. The useful question is whether drawdown and flavor are pointing in the same direction.

Know When to Change Grind—and When Not To

Grind is usually the first adjustment because it changes both flow and extraction, but using it to solve every problem creates confusion. Once the grind is close, other variables can make cleaner, more targeted corrections.

Grinder Quality Changes What “Correct” Looks Like

A good burr grinder narrows the particle distribution enough that one setting produces a predictable flow pattern. Entry-level grinders can still make excellent pour-over, but their settings may need to move farther from published charts because more fines and large fragments are present at the same time.

That does not mean every brewer needs a premium grinder. It means a grind-size chart becomes more useful when the grinder is consistent. If two brews made at the same setting behave very differently, check dose, bean age, filter seating, and pouring technique before assuming the chart itself is wrong.

Paper Filters Can Shift the Ideal Grind

Paper is part of the hydraulic system. A thick or slow-flowing filter can make a recipe stall even when the coffee grind has not changed, while a faster paper can shorten drawdown enough to make the same grind taste less extracted. Filter brand, manufacturing batch, and how thoroughly the paper is rinsed can all matter.

For that reason, dial in grind only after choosing the filter you intend to use regularly. If you switch from standard V60 paper to a slower premium paper, or from cone paper to Chemex bonded filters, expect to revisit the grind rather than assuming the previous setting should transfer unchanged.

When Grind Size Is Not the Real Problem

If repeated grind changes move drawdown but do not improve flavor, another variable is probably dominating the brew. Inconsistent pouring can create channeling, a partially seated filter can restrict or redirect flow, and stale coffee can taste flat regardless of particle size. Water chemistry and temperature can also make a technically “correct” brew taste muted or harsh.

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