Coffee-to-Water Ratio Chart
Quick Answer: The standard coffee-to-water ratio is 1:15 to 1:17 by weight (about 1 gram of coffee per 15–17 grams of water). Use 1:15 for French press, 1:16 for pour-over and drip, 1:2 for espresso, and 1:8 for cold brew concentrate. Weighing your coffee and water is the single biggest upgrade to consistency.
If your coffee tastes different every time, the ratio is almost always why. A scale and a fixed coffee-to-water ratio turn guesswork into a repeatable recipe. This is the chart I keep next to my setup — every method, by weight, in grams.
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Coffee-to-Water Ratio Chart (by Weight)
The canonical ratios by method:
| Method | Ratio (coffee:water) | Example | Strength |
|---|---|---|---|
| Espresso | 1:2 | 18 g in / 36 g out | Intense, concentrated |
| Moka pot | ~1:7 | fill the basket | Strong, syrupy |
| AeroPress | 1:12–1:15 | 18 g / 220 g | Flexible |
| French press | 1:15 | 30 g / 450 g | Full-bodied |
| Pour-over (V60) | 1:16 | 25 g / 400 g | Clean, balanced |
| Chemex | 1:16–1:17 | 30 g / 500 g | Bright, clean |
| Drip machine | 1:16–1:18 | 60 g / ~1 L | Everyday |
| Cold brew concentrate | 1:8 | 100 g / 800 g | Dilute before serving |
How to Use a Ratio
Pick your water amount, then divide by the ratio number. Example: 450 g water at 1:15 → 450 ÷ 15 = 30 g coffee. A coffee scale makes this trivial; volume scoops drift wildly by grind and bean.
Stronger or Weaker?
Lower the second number for a stronger cup (1:14), raise it for a milder one (1:17). The ratio sets strength; the grind size and water temperature set extraction. Adjust one variable at a time.
Why Weight Beats Volume
“Two tablespoons” varies with bean density, roast, and grind. Grams don’t. Weighing both coffee and water is how cafes get the same cup every time — and it’s the foundation of our brewing guide.
Frequently Asked Questions
What is the best coffee-to-water ratio?
For most brewers, 1:15 to 1:17 by weight (1 g coffee per 15–17 g water). Use 1:15 for French press, 1:16 for pour-over and drip, 1:2 for espresso, and 1:8 for cold brew concentrate.
How much coffee for 1 liter of water?
At a 1:16 ratio, about 62 g of coffee per liter (1000 g) of water. For a stronger brew use ~67 g (1:15); for milder, ~59 g (1:17).
Is coffee ratio measured by weight or volume?
By weight, in grams. Volume measures like tablespoons or scoops vary with grind size and bean density, so they’re far less consistent than a scale.
Final Thoughts
One fixed ratio is the difference between random coffee and a repeatable recipe. Grab a scale, pick your method’s ratio from the chart, and dial in the rest with grind and temperature.