Start at 1:16: Gram Based Pour Over Recipes for Home Brewers

Start with 1:16 by weight, meaning 1 gram of coffee for every 16 grams of water, and adjust inside a 1:14 to 1:18 working band depending on roast and taste. Move toward 1:14 for a bolder cup or a darker roast, and toward 1:18 for something lighter and more delicate. Weigh both coffee and water on a scale. Volume measurements like scoops and cups cannot give you this kind of control.

TL;DR:

• The standard 1:16 ratio produces a balanced brew time of 3 to 5 minutes for washed coffees, with stronger ratios favoring darker roasts and lighter ones suited for delicate single origins.
• Different drippers require slight ratio adjustments due to their design; for example, Chemex typically uses 1:15 to 1:16 with coarser grind, while Kalita Wave starts at 1:16 with medium grind.
• Calculating water and coffee weights is straightforward: multiply coffee grams by 16 to find water, or divide water grams by 16 to find coffee, tailored to specific cup sizes.
• Fix common brewing issues by adjusting ratios or grind size first, rather than multiple variables, to improve sourness, bitterness, or weak extraction.
• Consistently brewing with a fixed ratio like 1:16 and tracking parameters helps refine taste and ensures reproducibility across different batches.

Table of Contents

• Why the 1:16 pour over ratio works
• Ratios for V60, Chemex, Kalita Wave, and other drippers
• How to calculate your pour over recipe and pour sequence
• Fixing a sour, weak, bitter, or harsh cup
• Dialing in with temperature, drawdown, and channeling checks
• Ratio as a repeatable ritual, not a guessing game
• Where to practice your pour over ratio with Tri Crow Coffee
• Sources
• FAQ

Why the 1:16 pour over ratio works

A brew ratio is simply the relationship between dry coffee weight and water weight. It is the main lever that sets strength, how concentrated the coffee tastes in your mouth, which coffee professionals measure as total dissolved solids (TDS). Extraction yield is a separate number: the percentage of the coffee’s soluble material that actually ends up in your cup. You can have a strong, underextracted coffee or a weak, overextracted one. Ratio and extraction are related but not the same dial.

The Specialty Coffee Association’s Brew Control Chart formalizes this relationship, mapping how TDS and extraction yield interact across a range of brew ratios to define a target zone for balanced coffee, often referred to as the Golden Cup. That framework is why 1:16 shows up so often as a default: it lands most washed-process coffees inside a pleasant extraction range without any other adjustment.

Ratio math also has to account for water your coffee never gives back. Ground coffee absorbs roughly 2 grams of water per gram of coffee, so a recipe built on brew-water weight will always yield a bit less liquid in the cup than what you poured in. That gap matters when you are trying to hit a specific serving size, like a 12-ounce mug.

A few numbers worth keeping in mind:

• 1:16 is the widely cited starting point for pour over, producing a brew time of roughly 3 to 5 minutes for most washed coffees.
• 1:14 to 1:15 trends stronger and suits darker roasts or drinkers who want more body.
• 1:17 to 1:18 trends lighter and suits delicate, high-acidity single origins.
• ~2 grams of water are retained per gram of dry coffee, which affects your final beverage yield.

Nearly all reputable brewing guides converge on 1:16 as the practical default for pour over, with 1:15 to 1:17 as the common working band across brewers. Once you have that number locked in, grind size, water temperature, and pour timing become the tools you use to fix extraction problems, not the ratio itself.

Ratios for V60, Chemex, Kalita Wave, and other drippers

Every dripper’s geometry, filter thickness, and flow rate changes how a given ratio tastes, so the same 1:16 recipe behaves differently depending on what you are pouring into. James Hoffmann’s well-known V60 method uses 60 grams of coffee per liter of water, which works out to about 1:16.67, close enough to 1:16 that most brewers round it. The V60’s fast drawdown rewards a medium-fine grind and a target brew time of 2 minutes 30 seconds to 3 minutes 30 seconds.

Chemex is the outlier. Its thick paper filter slows the flow and extends contact time, so recipes commonly sit slightly stronger, around 1:15 to 1:16, paired with a coarser grind to keep total brew time from stretching past 5 minutes. Kalita Wave sits in between: a flat bed and three small holes make it one of the more forgiving drippers, and 1:16 at a 3 to 4 minute drawdown is a safe starting point for most beans. Clever and other immersion-style hybrids behave more like a steeped brew than a filter drip, so they typically call for a stronger 1:14 to 1:15 ratio with a distinct steep-and-release routine rather than a continuous pour.

A few quick rules for moving off these starting points:

• Darker roasts extract faster, so lean toward the stronger end of a brewer’s range or a slightly coarser grind.
• Thicker filters, like Chemex paper, need either a coarser grind or a stronger ratio to avoid bitterness from extended contact.
• Lighter, denser roasts often need a finer grind and a slightly longer ratio to pull enough flavor out in the same brew time.

How to calculate your pour over recipe and pour sequence

The math behind any ratio is simple. To find water weight, multiply your coffee weight by the ratio’s second number: 20 grams of coffee at 1:16 needs 320 grams of water. To find coffee weight from a target water amount, divide water weight by the ratio number: 300 grams of water at 1:16 needs about 18.75 grams of coffee.

For common cup sizes, here is what that looks like at a 1:16 starting ratio, using brew water weight rather than final beverage weight, since absorption reduces the liquid you actually drink by roughly 2 grams per gram of coffee used:

Take the 12-ounce example: 22 grams of coffee and 352 grams of water at a clean 1:16 ratio. Here is the pour sequence that recipe follows from grounds to cup:

1. Rinse your filter and grind 22 grams of coffee to a medium-fine setting for a V60 or similar dripper.
2. Start water around 200°F and pour a bloom of about 44 grams, roughly twice the coffee weight.
3. Let the bloom rest 30 to 45 seconds so trapped carbon dioxide can escape and the bed saturates evenly.
4. Pour the remaining water in two or three slow, controlled additions, keeping the bed level and avoiding the filter’s edges.
5. Aim for total drawdown between 2 minutes 30 seconds and 3 minutes 30 seconds, finishing with roughly 300 grams of coffee in the cup after grounds retain the rest.

That fixed bloom mass, twice the coffee weight, lets you isolate the effect of ratio, grind, and pour technique instead of changing three things at once.

Fixing a sour, weak, bitter, or harsh cup

Diagnose the fault before you touch anything. If the coffee tastes thin or watery but not necessarily bad, that is usually a strength problem, and tightening your ratio toward 1:14 or 1:15 fixes it directly. If the coffee tastes sour, hollow, or bitter and chalky, that is an extraction problem, and grind size is almost always the faster, less disruptive fix compared to changing your ratio.

• Sour or underextracted: grind finer, raise water temperature slightly, or extend the pour a touch.
• Bitter or overextracted: grind coarser, shorten total contact time, or pour a bit faster.
• Weak but balanced: move your ratio a step stronger, from 1:16 toward 1:15, rather than changing grind.
• Muddy or inconsistent cup to cup: check scale calibration and confirm you are weighing water, not eyeballing it.

Before blaming the recipe, rule out the basics: a scale that drifts, water that never reached 200°F, a kettle with poor pour control, stale coffee past its peak freshness window, or a filter type that does not match the recipe you are following.

Pro Tip: Change one variable per brew, grind or ratio or temperature, never all three, so you actually know what fixed the cup.

Dialing in with temperature, drawdown, and channeling checks

Start every brew at 200°F and hold your ratio steady while you use grind size to hit a target drawdown of 2 minutes 30 seconds to 4 minutes, depending on the brewer. That window is a more reliable diagnostic than taste alone in the early stages of dialing in a new bag.

Channeling, where water carves fast paths through the coffee bed instead of soaking evenly, shows up as an uneven, often sour cup even when your ratio and grind look correct on paper. It usually reveals itself within 10 to 15 brews of paying attention: watch for a lopsided bed after drawdown, or a wet dome on one side and dry grounds on the other. Fix it with a level bed before pouring, a gentle swirl after the bloom, and a grinder that produces uniform particle size rather than a wide spread of fines and boulders.

• Lock a baseline recipe for several brews before changing anything, so you have a fair comparison point.
• Check your bed shape after drawdown; unevenness usually points to pouring technique or grind consistency.
• Grind uniformity matters as much as the setting itself, since a spread of particle sizes extracts unevenly no matter what ratio you use.

Pro Tip: Keep a small notebook with ratio, grind setting, and drawdown time for every brew. Patterns show up faster on paper than in memory.

Ratio as a repeatable ritual, not a guessing game

A baseline recipe is worth more than a search for the perfect number. Pick 1:16, brew it the same way for a week, and taste with intention before you touch a single variable. Small-batch roasting rewards that kind of consistency, since a repeatable starting recipe is the only way to actually taste what a fresh batch is doing differently from the last one.

— David P.

Where to practice your pour over ratio with Tri Crow Coffee

Tri Crow Coffee’s Single Source Coffee line gives you a clean, single-origin base for testing ratios without other variables muddying the result. For faster trials between pour over sessions, our Instant Coffee 30-Serving Pouch or Medium Roast Cold Brew Coffee let you sample a flavor profile in small batches before committing to a full bag.

If you want something bolder for the stronger end of your ratio range, our Cold Brew Coffee Dark French Roast is coarse ground and built for concentrated flavor. Browse the Single Source Coffee collection to find a bag suited to your next dial-in session.

Sources

See the SCA’s brewing standards and pour over ratio guide for more.

• Day9
• Pour Over Coffee Ratio: V60, Chemex, and Kalita Wave Compared | RoastRanker
• SCA standards and research — Specialty Coffee Association

FAQ

How much coffee do I need for a 12 oz pour over?

At a 1:16 ratio, a 12-ounce (355-gram) brew uses about 22 grams of coffee and 352 grams of water. Adjust the coffee amount slightly for a lighter or stronger cup.

How much coffee should I use for 2 cups of pour over coffee?

Two standard 8-ounce cups call for about 30 grams of coffee at a 1:16 ratio. Weighing both coffee and water on a scale gives a far more consistent result than measuring by volume.

How much coffee do I need for a 10 oz pour over?

A 10-ounce brew at 1:16 needs roughly 18 grams of coffee. Adjust half a gram at a time until the strength matches your taste.

How many grams of coffee do I need for 8 oz of pour over coffee?

An 8-ounce brew at the standard 1:16 ratio needs about 15 grams of coffee. You can adjust slightly to suit your taste preferences.

Recommended

• Nail 2:30–4:00 Drawdown: Pour Over Grind Size for V60, Wave, Chemex
• Pour Over Coffee Workflow: Steps for Better Flavor
• 5 Pour Over Mistakes That Ruin Your Coffee