How to calculate a V60 ratio
For a V60, divide the total brewing water by the dry coffee dose. A 15-gram dose with 250 grams of water is 1:16.7 when rounded to one decimal place. A 20-gram dose with 320 grams is 1:16. Those numbers make recipes easy to compare, but a shorter ratio is not automatically more professional or more flavorful.
Hario's own guide uses a 15-gram, 250-gram starting recipe. Baratza publishes a different V60 method with 20 grams and 320 grams. Both belong to complete methods with their own grind and pouring instructions. Borrowing a ratio while keeping every detail of another recipe may produce a useful experiment, but it is still a new combination to evaluate.
Calculate from the amount you want to brew
For a chosen 1:16 ratio, multiply the coffee dose by 16. If you know your available water instead, divide that water mass by 16. The resulting drink will weigh less than the brewing water because the grounds and filter retain liquid. If serving size matters, measure the finished cup too.
| Coffee | Water at 1:15 | Water at 1:16 | Water at 1:17 |
|---|---|---|---|
| 15 g | 225 g | 240 g | 255 g |
| 18 g | 270 g | 288 g | 306 g |
| 20 g | 300 g | 320 g | 340 g |
Compare Brewlento's V60 starting recipes
The published Easy V60 quantities are 15 grams of coffee and 250 grams of water, about 1:16.7. Classic Two-Pour uses 13 grams and 200 grams, about 1:15.4. Pulse Pour uses 14 grams and 200 grams, about 1:14.3. Each recipe pairs its ratio with a different pouring structure.
Iced V60 separates 150 grams of hot water from 70 grams of ice for a 16-gram coffee dose. Its hot-water ratio is about 1:9.4, while hot water plus starting ice totals 220 grams, or 1:13.8. The serving result also depends on ice melting and liquid retained by the grounds. Hot-water pour targets should not include the initial ice.
Keep bloom water inside the total
When a 250-gram recipe starts with 45 grams of bloom water, 205 grams remain to be added. A scale target of 250 grams means the total after earlier pours, not another 250 grams. Before brewing, make sure a recipe distinguishes individual additions from cumulative targets.
Rinse water is outside the recipe total and is discarded during preparation. Keep the scale running through the water additions if your instructions use cumulative targets. That small habit prevents a measurement error from being mistaken for a grind or extraction problem.
Change ratio after describing the cup
If the coffee is balanced but feels too concentrated, try a little water in a sample before brewing again. If it is weak and sharp, inspect saturation and grind as well as the ratio. Strength and extraction overlap in the cup, so a one-line rule cannot identify every cause.
For a larger batch, preserve the ratio initially but reconsider bed depth, brewer size, and pouring rhythm. Compare taste and repeatability with the original brew. You do not need to force a two-cup V60 into a single-cup time window merely because both recipes share the same arithmetic.