Pour-Over Coffee Ratio Guide: How Much Coffee to Use

The Ratio Is Your Starting Point, Not a Rule

Every pour-over recipe begins with a ratio: the relationship between the weight of your coffee grounds and the weight of your water. Get this right and you have a repeatable foundation. Get it wrong and you are guessing every morning.

The standard pour-over range is 1:15 to 1:17 (1 gram of coffee for every 15-17 grams of water). That may sound narrow, but within those two numbers lies the difference between a bold, punchy cup and a light, delicate one.

What Each Ratio Tastes Like

1:15 — Stronger, Bolder

A 1:15 ratio produces a concentrated cup with more body and intensity. Flavors hit harder. Sweetness is more pronounced but can tip toward heaviness. Dark roasts at 1:15 can taste syrupy. Light roasts at 1:15 can taste intense but complex.

This ratio works well for people who find standard coffee too mild, who add milk or cream (the extra strength holds up to dilution), or who prefer smaller, more concentrated servings.

1:16 — The Universal Starting Point

Most specialty coffee professionals default to 1:16. It balances strength and clarity — enough extraction to develop sweetness and complexity, enough dilution to let individual flavor notes emerge without muddiness.

If you have never dialed in a pour-over recipe before, start here. 1:16 is the center of the target. Adjust from this baseline once you know how a particular coffee behaves.

1:17 — Lighter, More Delicate

A 1:17 ratio produces a lighter, tea-like cup. The body is thinner, acidity is more prominent, and subtle origin flavors (florals, fruit notes, jasmine-like qualities in Ethiopian coffees, for example) become more transparent.

This ratio suits light roasts that have complex, layered flavor profiles you want to showcase. It is also forgiving for beginners because the lower concentration means over-extraction flavors (bitterness) are less intense even when technique is imperfect.

Measure by Weight, Not Volume

This is non-negotiable. Coffee bean density varies dramatically by origin, processing method, and roast level. A “tablespoon” of a dense Kenyan light roast weighs significantly more than a tablespoon of a porous dark Sumatran. Volume measurements can be off by 20-30%, which is enough to change your cup entirely.

Use a scale. Any kitchen scale with 1g resolution works for water measurement. For coffee doses, 0.1g resolution is better because a 1g difference in a 15g dose is a 6.7% change — noticeable in the cup.

A dedicated coffee scale like the Timemore Black Mirror Basic Plus or Hario V60 Drip Scale adds a built-in timer, which helps you track brew time alongside weight. The KitchenTour Coffee Scale is a budget option that handles the basics. Browse our brew scale reviews for more options.

Example Recipes

One Cup (About 250ml / 8.5oz)

Ratio	Coffee	Water	Character
1:15	16g	240g	Bold, full-bodied
1:16	15g	240g	Balanced (start here)
1:17	15g	255g	Light, delicate

Two Cups (About 500ml / 17oz)

Ratio	Coffee	Water	Character
1:15	32g	480g	Bold, full-bodied
1:16	30g	480g	Balanced
1:17	29g	493g	Light, delicate

For two cups, make sure your dripper can handle the volume. A standard Hario V60 02 handles 30-32g doses comfortably. A Kalita Wave 185 works as well. For larger batches, the Chemex 6-Cup is designed for 40-50g doses.

How Grind Size and Ratio Interact

Ratio and grind size are not independent variables. They pull on each other.

If you change your ratio, you may need to adjust your grind. Moving from 1:16 to 1:15 (using more coffee for the same water) creates a thicker coffee bed. Water passes through more slowly, increasing contact time and extraction. To compensate, grind slightly coarser to maintain your target brew time.

Moving from 1:16 to 1:17 (less coffee for the same water) creates a thinner bed. Water drains faster, reducing contact time. Grind slightly finer to maintain extraction.

The target brew time for a single cup V60 pour-over is roughly 2:30-3:30. If you change your ratio and your brew time drifts outside this window, adjust the grind to bring it back in range. The ratio determines strength; the grind size determines extraction. Both need to be in balance for a great cup.

Dialing In Your Preferred Ratio

Here is a simple process:

1. Start at 1:16 with a medium-fine grind. Brew and taste.
2. If the cup tastes thin or watery, try 1:15 next time (or grind finer at the same ratio).
3. If the cup tastes heavy, muddy, or over-intense, try 1:17 (or grind coarser).
4. Once you find a ratio you like, lock it in and fine-tune grind size to adjust extraction balance (sour = grind finer, bitter = grind coarser).

Different coffees will have different ideal ratios. A heavy-bodied natural-process Brazilian might shine at 1:16. A delicate washed Ethiopian might open up beautifully at 1:17. There is no single correct answer — only your preference, informed by the coffee itself.

The Equipment That Makes Ratios Repeatable

Consistency comes from measuring the same way every time. The essentials:

• A scale — the foundation. Without it, ratios are theoretical. With it, they are practical. The Acaia Pearl S is the gold standard; the Hario V60 Drip Scale is the budget workhorse.
• A gooseneck kettle — controls pour rate, which affects extraction alongside ratio and grind. See our gooseneck kettle reviews.
• A good dripper — different drippers interact with ratios differently. Flat-bottom drippers like the Kalita Wave are more forgiving across ratio changes. Cone drippers like the V60 reward precision. Check our pour-over dripper reviews to find what suits your style.

Get the ratio right, and every other variable becomes easier to manage.