Miles SinclairBy Miles Sinclair

Updated November 2026

A pour over coffee ratio is the relationship between the weight of your ground coffee and the weight of water you brew with. Most home brewers start near 1:16, which means 16 grams of water for every gram of coffee. This guide shows you how to set that ratio, measure it accurately and adjust it so your cup tastes balanced rather than weak or harsh.

Start with the standard ratio

For a clean, balanced cup, use a coffee ratio for pour over of about 1:15 to 1:17. A 1:16 ratio is the most common starting point. For a single 12-ounce mug, that means roughly 22 grams of coffee and 350 grams of water. Weigh both, because volume measurements like scoops vary with grind size and bean density.

Shopping for one? See our guide: 7 Best Pour Over Coffee Dripper Models for Home Brewers (2026).

Measure and brew with the ratio in mind

Once you have your numbers, the brew itself follows a simple sequence. Consistency matters more than speed, so use the same steps each time and change only one variable at a time.

  1. Weigh 22 g of medium-fine ground coffee into the filter.
  2. Rinse a paper filter with hot water and discard the rinse water.
  3. Bloom with about 44 g of water (roughly 2:1) for 30 seconds.
  4. Pour the rest in slow, even circles until you reach 350 g total.
  5. Let the coffee drain completely. A total brew time of 2:45 to 3:30 is typical.

If you want more detail on water heat and grind, see Water Temperature for Pour Over Coffee: 200–205°F for Balanced Flavor and Pour Over Coffee Grind: A Step-by-Step Guide for Better Flavor.

Adjust the ratio to fix flavor

Taste is your guide. Use the ratio as a dial rather than a fixed rule.

  • Too weak or sour: Lower the ratio toward 1:15 by adding a little more coffee, or grind slightly finer.
  • Too strong or bitter: Raise the ratio toward 1:17 by using less coffee, or grind a touch coarser.
  • Thin body: Use more coffee within the same water amount.

Bitterness can also come from over-extraction, not only strength. If your cup still tastes harsh after adjusting the ratio, read Why Is My Pour Over Coffee Bitter: 5 Causes and Fixes for a Smoother Cup.

Scale for different brewers and cup sizes

The same ratio works across brewers, but the bed of coffee and the drawdown change the result. Cone brewers with a single large hole, such as a Chemex, often suit a slightly higher ratio. The Chemex Coffee to Water Ratio: A Step-by-Step Guide for Better Pour-Overs article covers that style in more depth. For multiple cups, keep the ratio fixed and multiply both weights together.

Cup size Coffee (g) Water (g)
One 8 oz cup 15 240
One 12 oz mug 22 350
Two 12 oz mugs 44 700
  • Digital scale with timer: Lets you weigh coffee and water to the gram and track brew time. Look for a model with a timer built in. View on Amazon
  • Gooseneck kettle: Gives controlled, slow pours that keep the bed of coffee evenly wet. View on Amazon

Common mistakes

  • Measuring coffee by volume instead of weight, which makes ratios inconsistent.
  • Changing grind size and ratio at the same time, which hides what caused the change.
  • Skipping the bloom, which can trap gas and lead to uneven extraction.
  • Pouring too fast, which shortens contact time and tastes sour.
  • Forgetting to rinse paper filters, which can add a papery taste.

FAQ

What is the best pour over coffee ratio for beginners?

Start at 1:16, using 22 g of coffee and 350 g of water for a 12-ounce cup. It is a reliable middle point that you can adjust from there.

Should I use more coffee for a stronger cup?

Yes, but change only the coffee amount and keep the water fixed. Moving toward 1:15 increases strength without changing the brew method.

Does the ratio change with different beans?

The base ratio stays similar, but light roasts often need a slightly finer grind or hotter water to extract fully. Adjust by taste after you hold the ratio steady.

Conclusion

A pour over coffee ratio gives you a repeatable starting point, and weighing both coffee and water makes every brew easier to compare. Begin at 1:16, change one variable at a time and let your taste guide the adjustments. With a few brews, you will know exactly which direction to move for your favorite cup.

Ready to choose one?

Miles Sinclair

About Miles Sinclair

Miles Sinclair 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.