Audrey HayesBy Audrey Hayes

Updated November 2026

The pourover coffee to water ratio you start with sets the strength and balance of your brew. Most home brewers get good results with a ratio between 1:15 and 1:17, meaning 15 to 17 grams of water for every gram of coffee. This guide shows you how to pick a starting ratio, measure it accurately and adjust it based on what you taste.

Start With a 1:16 Ratio

A ratio of 1:16 is a dependable starting point for most pourover methods. For a single 12-ounce mug, that works out to about 22 grams of coffee and 350 grams of water. If you want a lighter, more tea-like cup, move toward 1:17. If you want more body and sweetness, move toward 1:15.

Shopping for one? See our guide: 7 Best Coffee to Water Ratio French Press: Picks Compared (2026).

Measure by Weight, Not Volume

Volume measurements like scoops or tablespoons vary with grind size and how tightly you pack the grounds. A digital scale that reads to 0.1 gram gives you repeatable results. If you do not have a scale, a rough guide is that one level tablespoon of medium-fine ground coffee weighs about 5 to 6 grams, but weighing is far more reliable.

Brew Step by Step at Your Chosen Ratio

Once you have your numbers, follow a consistent sequence so the ratio is the only variable you change between brews.

  1. Weigh 22 grams of medium-fine coffee and grind it just before brewing.
  2. Rinse a paper filter with hot water to remove papery taste, then discard the rinse water.
  3. Add the grounds, level the bed and place the dripper on your mug or carafe.
  4. Bloom: pour about 44 grams of water (roughly twice the coffee weight) and wait 30 seconds.
  5. Pour the remaining water in slow, steady circles until the scale reads 350 grams.
  6. Let the coffee drain fully. A total brew time of about 2:30 to 3:30 is a good target.

For water temperature, aim for roughly 200 to 205°F. Our guide to water temperature for pour over coffee explains how to adjust it. If you want to go deeper on dialing in your brew, see Coffee Ground to Water Ratio: A Step-by-Step Guide for Better Brews.

Adjust the Ratio Based on Taste

Taste is your feedback loop. Change one thing at a time and keep notes.

What you taste What it usually means Adjustment
Sour, thin, sharp acidity Under-extracted Grind finer or use more coffee (lower ratio, e.g., 1:15)
Bitter, dry, harsh finish Over-extracted or too strong Grind coarser or use less coffee (higher ratio, e.g., 1:17)
Balanced, sweet, clear Good extraction Keep the recipe and note it

If you are brewing a different style, the principles carry over. For example, the Chemex Coffee to Water Ratio: A Step-by-Step Guide for Better Pour-Overs covers the thicker filters and larger brew volumes that change how coffee drains.

Common Mistakes

  • Using pre-ground coffee that has gone stale, which makes dialing in harder.
  • Changing grind size and ratio at the same time, so you cannot tell what caused the change.
  • Pouring too fast, which causes uneven extraction and a flat cup.
  • Skipping the rinse, which can leave a papery taste in the cup.
  • Judging a recipe from a single brew instead of comparing two or three.
  • Hario V60 Dripper: a cone-shaped dripper whose ridged design encourages an even flow, which helps you hit your target drawdown time. View on Amazon
  • Hario V60 Drip Scale: a small scale with a built-in timer, so you can track water weight and brew time together. View on Amazon
  • Hario Buono Kettle: a gooseneck kettle that gives you the controlled, slow pour needed for even saturation. View on Amazon

FAQ

Is 1:16 the best pourover coffee to water ratio?

There is no single best ratio for everyone. Use 1:16 as a starting point, then move toward 1:15 for more body or 1:17 for a lighter cup.

Does the ratio change with the dripper I use?

The ratio itself stays in a similar range across most drippers. Your grind size and pour technique matter more for how the same ratio tastes.

How do I know if my ratio is right?

A well-balanced cup tastes sweet, clear and free of harsh sourness or bitterness. If it does not, adjust grind size first, then the ratio, one change at a time.

Conclusion

Start with a 1:16 pourover coffee to water ratio, weigh both coffee and water, and keep your method consistent. From there, small changes to grind and ratio will show you exactly how your favorite coffee should taste.

Ready to choose one?

Audrey Hayes

About Audrey Hayes

Audrey Hayes is part of our editorial team and reviews and edits our coffee beans & brewing methods guides, checking product details against manufacturer specifications and owner feedback.