What grind size for V60?

For V60, aim at a medium-fine grind around 500-700 µm — close to caster sugar or fine sand. Total drawdown target is 2:30 to 3:15 for 15 g of coffee and 240 ml of water at 92-96 °C. You tune via grind size: finer if the brew runs too fast and tastes sour, coarser if it stalls and tastes bitter or muddy.

Grind is the single most decisive variable when chasing a 20 % extraction (SCA Golden Cup) with the clean, aromatic profile the V60 is known for. Median target sits around 600 µm — three times coarser than espresso and about 40 % finer than French press. Visually, you want a uniform texture close to caster sugar or beach sand, with few fines and few boulders. Distribution regularity matters as much as median size: a quality filter burr grinder (Baratza Encore, Wilfa Svart, Fellow Opus, or a manual 1Zpresso K-Max, Comandante C40) produces far more uniform particles than a blade grinder at the same nominal setting.

The physics are simple. V60 is percolation: water passes through the coffee bed in a 2:30-3:15 total, and during that time it dissolves solubles — acids first (first 30 seconds), sugars second (30-90 s), more bitter compounds at the end. If grind is too fine, water takes 4-5 min to drain, the coffee over-extracts, bitterness and astringency dominate. Too coarse, water runs through in 1:30-2:00, the cup is under-extracted, watery and sour. You adjust iteratively: if drawdown runs past 3:30 with coffee pooled at the end, open grind 1-2 steps; if the brew finishes in 2:00, tighten.

Origin calls for fine-tuning. Denser, harder beans (Ethiopia, Kenya, high-altitude) often need a slightly finer grind than softer beans (Brazil, low-altitude Colombia). A light roast asks for finer grind than a darker roast, because light-roasted beans are denser and extract more slowly. Freshness plays in too: a coffee within 10 days of roast date off-gasses a lot of CO₂ during bloom, creates channels and may need a slightly finer grind to compensate.

To check your grind is right, a TDS refractometer (Atago, VST) reads 1.25-1.45 % on a well-extracted V60, with calculated extraction yield around 18-22 %. Most drinkers trust the clock and the palate — the balance between sour edge (under-extraction), clean sweetness (ideal zone) and dry bitterness (over-extraction). In Brussels or Ghent specialty shops, a barista will often say V60 grind should 'crack like fine sugar' under the tooth, never feel powdery between fingers.

V60 grind — reference by use

The Single Most Impactful Variable in Your Pour-Over

Grind size for V60 is the variable that most directly controls the flow rate of water through the coffee bed, and through that flow rate, the contact time and therefore the extraction level of the final cup. Understanding the mechanism makes the adjustment intuitive rather than arbitrary: finer grind creates smaller particles with more surface area per gram, packs more tightly in the V60 cone, creates more resistance to water flow, slows the drain rate, and extends contact time — all factors that increase extraction. Coarser grind does the opposite: larger particles, less surface area, looser packing, faster flow, shorter contact time, less extraction. The target is the grind coarseness that produces your desired cup character within your target brew time, and this coarseness is not fixed across all coffees — it changes with roast level, coffee density, and the freshness of the beans.

The key calibration reference for V60 grind size is total brew time. A standard V60 recipe (15-20g coffee, 240-300g water, 1-2 pour technique) should complete its draw-down within approximately 2:30-3:30 minutes from first pour including bloom. Brew times consistently faster than 2:00 minutes indicate a grind that is too coarse; the water finds rapid paths through wide channels between large particles and extracts primarily surface compounds without reaching the interior. Brew times consistently over 4:00 minutes indicate a grind that is too fine; the water struggles to percolate through a dense bed and over-extracts bitterness and astringency from the compressed coffee mass. These brew time targets assume medium-hard water, standard V60 paper filters, and standard specialty roast levels — adjust expectations for very soft water (faster), very light roast dense beans (slower), or aged beans (faster as CO2 degrades).

Practical Recommendations

Dial in your V60 grind by adjusting in single grinder steps between brews, changing nothing else. When your brew time lands in the 2:30-3:30 window and the cup tastes balanced, note the grind setting and roast age together — as the coffee ages past its peak window (typically 4-6 weeks post-roast), you will need to grind finer to maintain the same flow rate and extraction, because aging beans lose density and become more permeable. This aging adjustment is small but noticeable: experienced V60 brewers often adjust grind setting by 1-2 steps between opening day and the end of a bag. Keeping notes of grind settings with roast dates for specific coffees from the same roaster builds a predictive database that makes future dialling-in faster and more efficient.