What ratio for V60 brewing?

Standard V60 ratio is 1:16 to 1:17 — 15 g of coffee to 240 ml of water, or 60 g of coffee to 1 litre. That ratio targets a cup TDS of 1.25-1.45 % and an extraction yield of 18-22 %, landing squarely in the 'Golden Cup' window defined by the SCA. You then fine-tune it by roast level, bean density and personal taste preference.

V60 ratio sits inside the Golden Cup zone defined by the Specialty Coffee Association — a balance window where coffee extracts cleanly (18-22 % extraction yield, meaning the percentage of mass dissolved into the liquid compared with the dry dose) and concentrates cleanly (TDS 1.15-1.45 %). A 1:15 ratio (66 g/L) yields a stronger, fuller cup leaning on body and sweetness; 1:17 (59 g/L) yields a lighter, more aromatic cup that lets floral and fruity notes breathe on light coffees; 1:18 (56 g/L) starts to feel diluted for most origins, with loss of definition. 1:16 is the most common compromise among filter baristas.

In practice, with a 0.1 g precision scale, weigh the coffee and multiply by 16 (or 15 or 17 by preference) to get the water. 15 g × 16 = 240 ml for one cup; 20 g × 16 = 320 ml for a larger cup; 30 g × 16 = 480 ml for two cups or a thermos; 60 g × 16 = 960 ml for a Chemex or a small group pourover. Gram accuracy matters: a 2 g drift on a 15 g / 240 ml recipe is 13 % variation on dose, which shifts the cup audibly toward sour or bitter.

Ratio choice also depends on the bean. A washed Ethiopia Yirgacheffe, delicate and floral, opens best on 1:17, where the profile breathes and jasmine and bergamot notes can ring out. A chocolate-hazelnut washed Colombia Huila pairs better with 1:15, which densifies body and rounds sweetness. A Kenya AA, with intense malic acidity and a syrupy body, holds well at a neutral 1:16. Darker roasts (rare on V60 in specialty) want a more open ratio, 1:17 or 1:18, to soften bitterness.

A subtlety worth knowing: ratio is usually net — the 240 ml is the water poured into the cone, not the final cup volume. Ground coffee absorbs around 2 ml of water per gram, i.e. 30 ml for a 15 g recipe. The cup then holds roughly 210 effective ml (240 - 30). That 'loss' drifts slightly with grind (finer = more absorbent) and freshness (fresher coffee holds more water because of CO₂). In Belgium, specialty shops in Brussels, Ghent, Antwerp and Liège almost always put their V60 recipe on a chalkboard — dose, water, time, sometimes TDS — in a transparency-and-reproducibility spirit that has firmly settled into the Belgian scene since the mid-2010s.

V60 ratios — conversion table

The Number That Defines Your Cup's Strength and Character

The coffee-to-water ratio in V60 brewing is the foundational parameter that sets the ceiling for everything else in your recipe. Unlike brewing time or grind size — which affect the quality and character of the extraction — the ratio directly controls the strength and concentration of the final cup. A 1:15 ratio (1g of coffee per 15g of water) produces a cup of standard filter coffee strength that showcases the coffee's flavour characteristics at a concentration most specialty drinkers find optimal for appreciating complexity and nuance. A 1:12 ratio produces a stronger, more intense cup that emphasises body and sweetness; a 1:18 ratio produces a lighter, more delicate cup that may be preferred by those who find standard-strength specialty coffee too assertive. These are not quality hierarchies — they are preference positions, and your body type, time of day, and specific coffee may call for different positions on this spectrum.

The impact of ratio changes on perceived flavour characteristics is not simply linear in the direction of "more coffee = stronger, darker, more bitter." Concentration affects the perception of all flavour dimensions simultaneously: at higher concentrations (lower ratio like 1:12), sweetness and body are amplified relative to acidity because the sweet compounds dissolve first and most efficiently, while acidity — which comes from a different, more water-sensitive extraction fraction — scales differently. At lower concentrations (higher ratio like 1:18), the dilution reduces body and sweetness more than it reduces perceived brightness, making high-ratio brews of high-acid coffees taste sharper and thinner rather than simply weaker. This asymmetry explains why experienced brewers recommend that if a 1:15 ratio coffee tastes too acidic, a modest strength increase to 1:14 or 1:13 often improves the balance more effectively than lowering the brewing temperature.

Practical Recommendations

Establish your ratio preference through a systematic tasting: brew the same medium-roast coffee at 1:13, 1:15, and 1:17 ratios in three consecutive sessions using identical grind, temperature, and pour technique. Taste all three side by side — the different strengths will be immediately apparent, and the one you reach for a second cup of is your personal optimal ratio for that coffee type. Note that different origins may call for different optimal ratios: light-roasted, high-acid Ethiopian coffees often work best at 1:15-1:16 where the dilution moderates the assertive acidity; body-forward Brazilian naturals may be most satisfying at 1:13-1:14 where the concentration emphasises their richness. Building a ratio preference map across several origin types is one of the most useful exercises in developing coffee brewing judgment.