Coffee to Water Ratio Chart

The standard coffee to water ratio for pour over and drip coffee is 1:16: 1 gram of coffee for every 16 grams of water, about 15 grams per 240 ml cup. French press starts at 1:15, cold brew concentrate at 1:8. Get your exact dose with our free coffee ratio calculator.

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The Chart: Ratios by Brew Method

A coffee ratio is always coffee first: 1:16 means one part coffee to sixteen parts water, by weight. Pour over and automatic drip sit at 1:15 to 1:17, with 1:16 the standard starting point. French press runs 1:14 to 1:16, starting at 1:15, because full immersion extracts more heavily and a slightly tighter ratio suits the heavier body. AeroPress works at 1:12 to 1:16 depending on whether you brew concentrated and dilute, or brew ready-to-drink. Moka pot ratios look different because the basket, not the ratio, sets the dose: fill the basket level and the water to the valve, which lands near 1:10. Cold brew concentrate is 1:8, or 100 grams of coffee per 800 grams of water, and it is diluted before drinking, so do not compare it directly with hot-brew ratios. Espresso is the odd one out: its 1:2 ratio is dose to yield, 18 grams of grounds producing 36 grams of liquid, not coffee to brewing water. For a 240 ml cup at 1:16 you need 15 grams of coffee; at 1:15 you need 16 grams; at 1:17 you need 14 grams. For a 500 ml batch at 1:16 you need 31 grams, and for a full liter you need about 63 grams. If you weigh in ounces, our kilograms to ounces converter translates grams to ounces, and the liters to milliliters converter handles water volumes.

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Why Weight Beats Scoops

The scoop is the biggest source of ratio error in home brewing. One tablespoon of coffee can weigh anywhere from 5 to 7 grams depending on the bean, the roast, and how heaped the scoop is, so a recipe that says four scoops can mean anywhere from 20 to 28 grams: a 40 percent swing that no ratio chart can fix. A kitchen scale removes the guesswork entirely, and a 0.1-gram scale costs less than a bag of good beans. Weigh the water too, since 1 gram of water equals 1 milliliter, which makes the math trivial: 300 grams of water is 300 ml. If you must use scoops, calibrate once: weigh ten level scoops of your current beans, divide by ten, and write the number on the bag, because a dark roast weighs less per scoop than a light roast of the same bean. Grind size matters as much as dose: a pour over at 1:16 with a too-fine grind over-extracts and tastes bitter, while the same ratio with a too-coarse grind under-extracts and tastes sour. Change one variable at a time, and change grind before ratio, because grind fixes most bad cups without touching the dose.

Dialing In: Taste First, Then Adjust

Start at the middle of your method's range, brew, and taste before changing anything. If the cup tastes sour, thin, or salty, it is usually under-extracted: grind finer or use slightly more coffee, moving from 1:16 toward 1:15. If it tastes bitter, dry, or ashy, it is usually over-extracted: grind coarser or use slightly less coffee, moving toward 1:17. If it tastes weak but otherwise clean, the ratio is the problem and a tighter ratio fixes it; if it tastes strong but muddy, the grind is the problem and the ratio is innocent. Grounds absorb roughly twice their weight in water, so a brew made with 500 ml of water yields a bit less than 500 ml in the cup: ratios always count the water poured in, not the coffee drunk. Water temperature sits at 92 to 96 degrees Celsius for most methods, and stale beans or a dirty brewer will beat any ratio, so fix freshness and cleanliness before chasing numbers. Keep a short brew log: method, dose, water, grind setting, and one tasting word. Three logged brews teach you more about your setup than any chart.

Scaling Up Without Breaking the Cup

Ratios scale linearly, but brewers do not always behave linearly. Doubling a pour over recipe means doubling both numbers, so 20 grams and 320 grams becomes 40 grams and 640 grams, and the ratio stays 1:16. But a bigger bed of grounds drains more slowly, so a doubled pour over may need a slightly coarser grind to finish in the same time. French press scales cleanly: 30 grams and 450 grams becomes 60 grams and 900 grams with the same four-minute steep. Cold brew scales cleanly too, since time, not flow, does the work. For a crowd, brew multiple normal batches rather than one giant one: two 500 ml pour overs taste better than one 1-liter pour over fighting its own drawdown time. If you want the exact dose for an odd batch size, our coffee ratio calculator computes it from your method and strength, and our espresso extraction time guide covers the one method where time, not ratio alone, decides the cup.

Quick Answers

What is the best coffee to water ratio? 1:16 for pour over and drip, 1:15 for French press, 1:8 for cold brew concentrate. How much coffee for one cup? About 15 grams for a 240 ml cup at 1:16. How much coffee for 500 ml? About 31 grams at 1:16. Why does my coffee taste sour at the right ratio? Usually grind, not dose: grind finer for sour, coarser for bitter, and change one variable at a time. Get your exact dose with our coffee ratio calculator and keep the ToolNest homepage bookmarked for the rest of the free kitchen toolbox.