Pour Over Coffee Ratio: How Much Coffee to Use for Every Cup Size

Barista making drip brewing, filtered coffee, or pour over coffee with hot water and filter paper | Kurtis Ko

Getting the coffee-to-water ratio right is one of the easiest ways to make better pour-over coffee.

You don’t need a complicated formula.

You don’t need to memorize a different recipe for every mug.

And you definitely don’t need to guess how many scoops of coffee belong in the filter.

For most pour-over brewing, an excellent starting point is:

1 gram of coffee for every 16 grams of water

or:

1:16

That means:

20 grams coffee + 320 grams water

or:

25 grams coffee + 400 grams water

or:

30 grams coffee + 480 grams water

From there, you can adjust the ratio according to taste.

Want stronger coffee?

Try 1:15.

Prefer something lighter?

Try 1:17 or 1:18.

The important thing is understanding that coffee ratio primarily controls strength, while grind size, water temperature, brew time, and pouring technique strongly influence extraction.

If your coffee tastes perfectly balanced but too weak, change the ratio.

If it tastes sour, bitter, hollow, or astringent, the ratio may not be the main problem.

This guide explains how much coffee to use for common cup sizes, how to calculate any pour-over recipe, and how ratios work with brewers such as the Hario V60, Kalita Wave, and Chemex.

⚡ Quick Answer: What Is the Best Pour Over Coffee Ratio?

Start with:

1:16

That means:

1 gram coffee : 16 grams water

Here are some easy examples:

Coffee	Water
15 g	240 g
18 g	288 g
20 g	320 g
25 g	400 g
30 g	480 g
31 g	500 g
38 g	600 g
47 g	750 g
63 g	1,000 g

If 1:16 tastes too strong, move toward 1:17 or 1:18.

If it tastes balanced but weaker than you prefer, try 1:15.

Professional pour-over recipes vary. Counter Culture recommends starting around 1:17 for conical and flat-bottom brewers such as the Hario V60 and Kalita Wave, while Kalita’s own current brewing guide uses 20 grams of coffee with 320 grams of water, exactly a 1:16 ratio.

So there isn’t one sacred number.

1:16 is simply an excellent place to begin.

📏 Pour Over Coffee Ratio Chart by Cup Size

Here’s the chart most people actually need.

These measurements use approximately a 1:16 ratio.

Water	Ground Coffee
6 oz / 177 ml	11 g
8 oz / 237 ml	15 g
10 oz / 296 ml	18–19 g
12 oz / 355 ml	22 g
16 oz / 473 ml	30 g
20 oz / 591 ml	37 g
250 ml	16 g
300 ml	19 g
350 ml	22 g
400 ml	25 g
500 ml	31 g
600 ml	38 g
750 ml	47 g
1 liter	63 g

These quantities refer to brewing water, not the exact amount of coffee that will end up in your cup.

The coffee grounds retain some water during brewing, so the finished beverage will weigh less than the amount you poured.

☕ How Much Coffee for an 8 oz Pour Over?

For approximately 8 ounces—or 237 grams—of brewing water, start with:

15 grams coffee + 237 grams water

That’s almost exactly a 1:16 ratio.

For convenience, you can round the water to:

240 grams

giving you:

15 g coffee + 240 g water

This is an excellent small single-cup recipe.

☕ How Much Coffee for a 10 oz Pour Over?

For 10 ounces of water, use approximately:

18–19 grams coffee + 296 grams water

You can simplify that to:

19 g coffee + 300 g water

That’s an easy recipe to remember and produces a ratio of roughly 1:15.8.

☕ How Much Coffee for a 12 oz Pour Over?

For approximately 12 ounces of brewing water:

22 grams coffee + 355 grams water

For an easier scale-friendly recipe, round to:

22 g coffee + 350 g water

or:

23 g coffee + 368 g water

There’s no reason to obsess over a few grams of water.

Consistency matters more.

☕ How Much Coffee for a 16 oz Pour Over?

For approximately 16 ounces of water:

30 grams coffee + 473 grams water

You can simplify this to:

30 g coffee + 480 g water

That is exactly:

1:16

This makes an excellent larger single serving or smaller two-person brew.

☕ How Much Coffee for a 20 oz Pour Over?

For approximately 20 ounces of water:

37 grams coffee + 591 grams water

An easy recipe is:

38 g coffee + 600 g water

At a 1:16 ratio:

38 × 16 = 608

So 38 grams of coffee with around 600 grams of water puts you almost exactly where you want to be.

🫗 How Much Coffee for 250 ml of Pour Over?

Use approximately:

16 grams coffee + 250 grams water

That’s roughly:

1:15.6

If you want an exact 1:16 recipe:

250 ÷ 16 = 15.6

So anywhere around 15.5–16 grams is ideal.

🫗 How Much Coffee for 300 ml?

Use:

19 grams coffee + 300 grams water

The exact calculation is:

300 ÷ 16 = 18.75

Rounding to 19 grams is perfectly practical.

🫗 How Much Coffee for 400 ml?

Use:

25 grams coffee + 400 grams water

This is one of the easiest pour-over recipes to remember because:

25 × 16 = 400

So you have an exact:

1:16 ratio

🫗 How Much Coffee for 500 ml?

Use approximately:

31 grams coffee + 500 grams water

The exact calculation is:

500 ÷ 16 = 31.25

Round to 31 grams and brew.

If you prefer slightly lighter coffee, try:

30 g coffee + 500 g water

which works out to approximately:

1:16.7

🫗 How Much Coffee for 600 ml?

At 1:16:

600 ÷ 16 = 37.5

Use:

37–38 grams coffee + 600 grams water

A convenient recipe is:

38 g coffee + 600 g water

🫗 How Much Coffee for 750 ml?

Use approximately:

47 grams coffee + 750 grams water

If you’re brewing this much coffee, make sure your pour-over brewer has sufficient capacity.

A small V60 or Kalita Wave may not accommodate the same batch size as a larger Chemex.

🫗 How Much Coffee for 1 Liter?

For one liter of brewing water:

62.5 grams coffee + 1,000 grams water

Round to:

62–63 grams coffee

This is a substantial pour-over batch.

A larger Chemex or similar brewer is generally better suited to this amount than a compact single-cup dripper.

🧮 How to Calculate Any Pour Over Coffee Ratio

You don’t need a special calculator.

Use this formula:

Water ÷ Ratio = Coffee

If you have:

400 grams water

and want a:

1:16 ratio

calculate:

400 ÷ 16 = 25

Your recipe is:

25 g coffee + 400 g water

If You Know the Coffee Amount

Reverse the equation:

Coffee × Ratio = Water

If you have:

22 grams coffee

and want a 1:16 ratio:

22 × 16 = 352

Use approximately:

22 g coffee + 352 g water

You can round that to 350 grams without worrying about the missing two grams.

💪 Pour Over Ratio for Strong Coffee

If your coffee tastes properly extracted but you want more concentration, move toward:

1:15

That means one gram of coffee for every 15 grams of water.

For example:

Coffee	Water
15 g	225 g
20 g	300 g
25 g	375 g
30 g	450 g
40 g	600 g
50 g	750 g

A 1:15 ratio is noticeably stronger than 1:17 but still sits well within ordinary pour-over territory.

💥 Do You Need a 1:12 Pour Over Ratio for Strong Coffee?

Usually not.

The old version of this article recommended:

1:12

as the strong pour-over recipe.

That’s an unusually concentrated starting point for everyday pour-over brewing.

It can certainly be used intentionally.

But jumping directly from:

1:16 → 1:12

is a huge change.

For 300 grams of water:

At 1:16:

18.75 g coffee

At 1:12:

25 g coffee

That’s more than 30% additional coffee.

If your brew simply tastes a little weaker than you’d like, start by moving from:

1:16 → 1:15

Taste it.

If necessary, try something like:

1:14.5

There is rarely a reason to make enormous adjustments immediately.

💧 Pour Over Ratio for Lighter Coffee

If your coffee tastes good but feels too intense, try:

1:17

or:

1:18

For example, with 300 grams of water:

Ratio	Coffee
1:15	20 g
1:16	18.8 g
1:17	17.6 g
1:18	16.7 g

Notice how little the dose actually changes.

You may need only:

1–2 grams less coffee

to make the cup noticeably lighter.

📊 1:15 vs. 1:16 vs. 1:17 vs. 1:18

Here’s an easy comparison using 500 grams of water.

Ratio	Coffee	General Result
1:15	33.3 g	Stronger
1:16	31.3 g	Balanced starting point
1:17	29.4 g	Slightly lighter
1:18	27.8 g	Lighter

This is the easiest way to find your preferred strength.

Keep everything else identical.

Make the coffee once at 1:16.

Taste it.

Next time, move to 1:15 or 1:17.

Now you’re comparing actual recipes rather than guessing.

🥄 How Many Tablespoons of Coffee for Pour Over?

A scale is much more reliable, but tablespoons can work.

One rounded tablespoon of ground coffee may weigh roughly 5–6 grams, depending on:

Bean density
Roast level
Grind size
How full the spoon is

Using approximately 5.5 grams per tablespoon as a rough estimate:

Water	Coffee	Approx. Tablespoons
6 oz	11 g	2 tbsp
8 oz	15 g	2½–3 tbsp
10 oz	19 g	3½ tbsp
12 oz	22 g	4 tbsp
16 oz	30 g	5½ tbsp
20 oz	37 g	6½–7 tbsp

These are approximations.

The more serious you become about pour-over brewing, the more useful a scale becomes.

⚖️ Why a Scale Is Better Than a Coffee Scoop

Imagine measuring one tablespoon of:

Dense light-roasted coffee
Puffy dark-roasted coffee
Fine-ground coffee
Coarse-ground coffee

The spoon may appear equally full.

The weight can differ.

A scale removes that uncertainty.

It also lets you measure your water as you pour.

Place your brewer and cup or carafe on the scale.

Tare it to zero.

Add coffee.

Tare again if necessary.

Then watch the water weight increase during brewing.

That’s one reason scales are almost universal in modern pour-over recipes.

Shop digital coffee scales on Amazon

🤔 Is 1:16 the Official “Golden Ratio”?

Not exactly.

You’ll see the phrase Golden Ratio used constantly in coffee, but there isn’t one universally mandatory pour-over ratio.

The Specialty Coffee Association’s brewing framework has historically centered around approximately 55 grams of coffee per liter of water, depending on the specific standard or brewing context.

That works out to roughly:

1:18

Meanwhile, contemporary specialty coffee recipes vary widely.

Counter Culture recommends a broad range of approximately:

1:14 to 1:20

and suggests starting around 1:17 for V60 and Kalita-style brewers.

Kalita USA’s current pour-over method uses:

20 g coffee + 320 g water

which is exactly:

1:16

So instead of searching for the only correct number, think in terms of a useful range.

For most home pour-over brewing:

1:15–1:18 is an excellent practical range.

And:

1:16 is an excellent starting point.

🔬 Ratio Controls Strength — Not Everything About Extraction

This distinction is extremely important.

Suppose your coffee tastes:

Sweet
Balanced
Pleasant

but is just too strong.

Change the ratio.

Use more water relative to coffee.

But suppose the coffee tastes:

Sour
Sharp
Thin
Underdeveloped

That may indicate under-extraction.

Simply adding more coffee isn’t necessarily the answer.

Likewise, if coffee tastes:

Bitter
Dry
Harsh
Astringent

you may have an extraction issue rather than a ratio problem.

Strength

Primarily describes how concentrated the beverage is.

Extraction

Describes how much soluble material has been removed from the coffee grounds.

They’re related.

But they aren’t identical.

🪨 Grind Size Matters as Much as Ratio

For most pour-over brewers, start with a:

Medium to medium-coarse grind

The correct grind depends on:

Brewer
Coffee dose
Filter
Bean
Roast level
Pour speed
Number of pours

For something like a Hario V60, a medium grind or slightly coarser is often a good starting point.

For a Chemex, a somewhat coarser grind is common because its thick filters and larger brew volumes can slow the drawdown.

For a Kalita Wave, medium to medium-coarse is a useful baseline.

For more detail, see Coffee Grind Size Guide: The Best Grind for Every Brewing Method.

🚰 What Happens If the Grind Is Too Fine?

The water may drain too slowly.

You may see:

Water pooling high in the brewer
Very long brew time
Slow dripping
Muddy coffee bed

The finished coffee may taste:

Bitter
Dry
Astringent
Heavy

Try moving the grinder slightly coarser.

💨 What Happens If the Grind Is Too Coarse?

Water may pass through too quickly.

The coffee may taste:

Sour
Thin
Sharp
Hollow
Underdeveloped

Move slightly finer.

Again:

small adjustments.

Don’t jump halfway across the grinder dial after one imperfect cup.

🌡️ Best Water Temperature for Pour Over Coffee

A strong general starting range is:

195–205°F (91–96°C)

Counter Culture recommends this same broad hot-brewing range.

Kalita also recommends approximately 195–205°F in its pour-over brewing method.

If you want one number to remember:

Start around 200°F (93°C).

Then adjust according to the coffee.

Light Roast

Try:

200–205°F

Light-roasted coffee is generally less soluble and often responds well to hotter water.

Medium Roast

Try:

195–205°F

Around 200°F is an easy starting point.

Dark Roast

Try:

190–200°F

If the coffee tastes harsh or excessively roasty, slightly cooler water may help.

Temperature works with grind size and brew time.

Don’t change everything at once.

🌸 How Much Water Should You Use for the Bloom?

A useful starting bloom is:

2–3 times the weight of your coffee

If you’re using:

20 grams coffee

try:

40–60 grams water

For:

30 grams coffee

try:

60–90 grams water

The goal is simply to saturate all of the dry grounds.

How Long Should the Bloom Last?

Start around:

30–45 seconds

Fresh coffee releases carbon dioxide when hot water hits it.

You’ll often see:

Bubbling
Swelling
Expansion

The bloom gives that gas time to escape before you continue the main pour.

Kalita’s current guide, for example, recommends a 60-gram bloom for a 20-gram coffee dose and waits roughly 30–45 seconds.

🫗 An Easy 1:16 Pour Over Recipe

Here’s a simple recipe you can use with a V60, Kalita Wave, or similar brewer.

Ingredients

20 g freshly ground coffee

320 g water

Brewing Setup

Ratio: 1:16
Grind: Medium to medium-coarse
Water: About 200°F
Bloom: 40–60 g
Bloom time: 30–45 seconds
Total brew: Often around 2½–4 minutes depending on brewer and grind

Step 1: Heat the Water

Heat slightly more than 320 grams.

You’ll need some extra water to rinse the filter and preheat the brewer.

Step 2: Rinse the Paper Filter

Place the filter into the dripper.

Pour hot water through it.

This:

Removes loose paper flavor
Preheats the brewer
Preheats the cup or carafe

Discard the rinse water.

Step 3: Add Coffee

Grind:

20 grams coffee

and add it to the filter.

Gently shake the brewer to level the coffee bed.

Step 4: Bloom

Start the timer.

Pour approximately:

50 grams water

over the grounds.

Make sure all of the coffee becomes wet.

Wait around:

30–45 seconds.

Step 5: Continue Pouring

Gradually add the remaining water.

You can use one continuous controlled pour or several pulses depending on your brewer and recipe.

Keep the water moving through the coffee bed without aggressively pouring against the filter walls.

Step 6: Reach 320 Grams

Stop adding water when the scale reaches:

320 g

Step 7: Let It Drain

Allow the remaining water to pass through the coffee.

Step 8: Remove the Brewer

Swirl the finished coffee gently.

Pour and taste.

Now you have a baseline.

👅 How to Adjust Your Pour Over by Taste

This is more useful than obsessing over someone else’s recipe.

Coffee Tastes Great but Too Strong

Change:

1:16 → 1:17

Keep grind, temperature, and technique the same.

Coffee Tastes Great but Too Weak

Change:

1:16 → 1:15

Coffee Tastes Sour and Drains Quickly

Try:

finer grind

before changing the ratio dramatically.

Coffee Tastes Bitter and Drains Slowly

Try:

coarser grind

Coffee Tastes Flat

Possible causes include:

Stale beans
Poor water
Wrong grind
Low brewing temperature
Inappropriate ratio

Don’t assume every problem can be fixed by using more coffee.

🔺 Best Hario V60 Coffee Ratio

For the Hario V60, a very good starting range is:

1:16 to 1:17

Try:

20 g coffee + 320 g water

or:

20 g coffee + 340 g water

The V60’s large opening and spiral ribs allow the brewer to respond strongly to your:

Grind size
Pouring speed
Pour pattern
Agitation

Two people can use the same 1:16 ratio and produce noticeably different coffee simply by changing the pour.

That’s part of what makes V60 brewing so rewarding.

Shop Hario V60 brewers on Amazon

🌊 Best Kalita Wave Coffee Ratio

Kalita’s current recommended pour-over formula uses:

20 grams coffee

with:

320 grams water

That’s exactly:

1:16

Kalita also suggests experimenting broadly within approximately:

1:16–1:18

Its flat-bottom Wave design is intended to promote more even extraction and can feel somewhat more forgiving than a highly technique-sensitive cone brewer.

A straightforward recipe is:

20 g coffee + 320 g water

with:

60 g bloom

at:

195–205°F

and a medium to medium-coarse grind.

Shop Kalita Wave brewers on Amazon

🧪 Best Chemex Coffee Ratio

Chemex is somewhat different.

Its official consumer brewing instructions use:

one rounded tablespoon of ground coffee per 5-ounce cup

rather than specifying one fixed gram-based brewing ratio.

Chemex also explicitly encourages users to adjust the amount for stronger coffee.

For modern scale-based brewing, a practical starting range remains:

1:16–1:18

Try:

30 g coffee + 500 g water

for approximately:

1:16.7

The Chemex uses unusually thick bonded paper filters, which help produce a very clean cup.

It also commonly handles larger batch sizes than a single-cup dripper.

A medium-coarse grind is a good starting point.

Shop Chemex coffee makers on Amazon

🆚 V60 vs. Kalita vs. Chemex Ratios

You don’t necessarily need dramatically different ratios for each brewer.

Start in approximately the same neighborhood.

Brewer	Good Starting Ratio	Typical Grind
Hario V60	1:16–1:17	Medium
Kalita Wave	1:16–1:18	Medium to medium-coarse
Chemex	1:16–1:18	Medium-coarse
Generic cone dripper	1:16–1:17	Medium
Flat-bottom dripper	1:16–1:18	Medium

The bigger difference often comes from grind and flow rate, not the ratio itself.

🫘 Does Light Roast Need More Coffee?

Not necessarily.

Start with the same 1:16 ratio.

If the light roast tastes sour or underdeveloped, don’t immediately add more coffee.

Instead, consider:

Finer grind
Hotter water
Longer contact time
More agitation

Adding more coffee can actually make extraction more difficult because you have more coffee to extract with the same amount of water.

🍫 Does Dark Roast Need Less Coffee?

Again, not automatically.

Start around:

1:16

and taste.

If the cup feels overwhelmingly intense but otherwise balanced, move toward:

1:17

If it tastes bitter or harsh, however, try:

Cooler water
Coarser grind
Faster brew

before deciding the ratio is the only problem.

🧠 A Stronger Ratio Doesn’t Necessarily Mean Better Extraction

This is one of the most useful concepts to understand.

Suppose your coffee tastes sour.

You think:

“It needs more coffee.”

So you change:

1:16 → 1:12

Now you have much more coffee but the same amount of water.

There is actually less water available relative to each gram of coffee.

That can make extracting the coffee sufficiently even harder.

The beverage may be stronger while remaining under-extracted.

That’s why:

stronger ≠ better extracted.

Use ratio to adjust strength.

Use grind, water temperature, time, and technique to adjust extraction.

⏱️ How Long Should Pour Over Coffee Take?

There’s no universal brew time because it depends on:

Coffee dose
Brewer size
Grind
Filter
Bean
Pouring method

For a single-cup pour-over, something around:

2½–4 minutes

is often a useful starting window.

Kalita’s 20 g / 320 g recipe targets approximately 2–3 minutes.

Other V60 recipes may run closer to three or four minutes.

Large Chemex batches commonly take longer.

Don’t treat the timer like a finish line.

Use it as diagnostic information.

🕒 Brew Time Is a Symptom, Not the Goal

Suppose your coffee finishes at:

2:40

and tastes wonderful.

Do not grind finer simply because someone online said the brew should take exactly 3:15.

Likewise, if a 4-minute brew tastes excellent, don’t ruin it chasing a faster number.

Use brew time to notice changes.

If yesterday’s recipe took:

3:00

and today’s takes:

5:30

something changed.

Maybe the grind is finer.

Maybe there are more fines.

Maybe your pouring agitation increased.

The clock helps diagnose.

Taste decides.

🫖 Do You Need a Gooseneck Kettle?

You can make pour-over coffee without one.

But a gooseneck kettle is one of the most genuinely useful upgrades.

The narrow spout provides much greater control over:

Pour rate
Water placement
Agitation
Bloom saturation

That control is especially helpful with a V60.

A normal kettle can dump water too quickly and disturb the coffee bed more than intended.

Shop gooseneck kettles on Amazon

🫘 Why a Burr Grinder Matters

Pour-over coffee is extremely sensitive to grind consistency.

A blade grinder may create:

Large chunks
Medium particles
Fine powder

all at the same time.

The fines can slow the filter while the larger pieces extract differently.

A burr grinder produces a more controlled particle distribution and makes it easier to repeat your recipe.

You don’t need an expensive espresso grinder.

A good filter-coffee burr grinder is enough.

Shop burr coffee grinders on Amazon

🌊 Does Pouring Technique Change the Ratio?

No.

Your ratio remains the same.

If the recipe is:

20 g coffee + 320 g water

it remains 1:16 whether you add that water in:

One long pour
Two pours
Three pulses
Five pulses

But the finished coffee may taste different.

Why?

Because pouring changes:

Agitation
Coffee-bed depth
Flow
Contact time
Extraction

Ratio tells you how much coffee and water you’re using.

It doesn’t describe the entire brewing process.

🔄 One Pour vs. Pulse Pouring

Continuous Pour

After the bloom, you maintain a relatively steady stream until reaching the target weight.

Advantages:

Simple
Repeatable
Less stopping and starting

Pulse Pour

You divide the remaining water into several smaller pours.

Advantages:

Easier water-level control
Can increase agitation
Can alter drawdown and extraction

Neither method is universally superior.

Choose one and repeat it consistently while you’re learning.

🚩 Common Pour Over Ratio Mistakes

Using a Different Ratio Every Morning

You can’t diagnose the coffee if the recipe constantly changes.

Measuring Water by Eye

Use the scale that’s already under your brewer.

Assuming 1:12 Is the Normal “Strong” Ratio

Start with smaller changes such as 1:15.

Treating Sour Coffee as a Ratio Problem

It may need finer grinding or hotter water.

Treating Bitter Coffee as a Ratio Problem

The grind may be too fine or the brew too slow.

Changing Ratio and Grind Simultaneously

Now you don’t know which change mattered.

Ignoring Brewer Capacity

A recipe for 750 ml may overwhelm a small dripper.

Confusing Brew Water With Final Beverage Volume

The coffee grounds retain water.

You won’t get 500 grams of finished coffee from 500 grams of brewing water.

Using Coffee-Maker “Cups” as 8 Ounces

Coffee equipment often defines “cup” differently.

Calculate using actual milliliters, ounces, or grams whenever possible.

📋 Easy Pour Over Ratio Cheat Sheet

If you want one screenshot-worthy section, use this:

Balanced

1:16

15 g coffee → 240 g water
20 g coffee → 320 g water
25 g coffee → 400 g water
30 g coffee → 480 g water
31 g coffee → 500 g water
38 g coffee → 600 g water

Stronger

1:15

15 g → 225 g
20 g → 300 g
25 g → 375 g
30 g → 450 g
40 g → 600 g

Lighter

1:17

15 g → 255 g
20 g → 340 g
25 g → 425 g
30 g → 510 g

Even Lighter

1:18

15 g → 270 g
20 g → 360 g
25 g → 450 g
30 g → 540 g

✅ How to Find Your Perfect Pour Over Ratio

Use a simple three-brew experiment.

Brew #1

Make:

20 g coffee + 320 g water

Ratio:

1:16

Taste it.

Brew #2: Stronger

Make:

20 g coffee + 300 g water

Ratio:

1:15

Keep:

Same coffee
Same grind
Same temperature
Same pouring technique

Taste it.

Brew #3: Lighter

Make:

20 g coffee + 340 g water

Ratio:

1:17

Taste again.

Now ask:

Which cup do you actually prefer?

That’s your starting ratio.

It doesn’t matter if someone else’s favorite recipe is different.

❓ Pour Over Coffee Ratio FAQ

What is the best coffee-to-water ratio for pour over?

Start with approximately:

1:16

or one gram of coffee for every 16 grams of water.

A practical range of roughly 1:15–1:18 works well for many pour-over recipes.

Is 1:15 or 1:16 stronger?

1:15 is stronger.

There is less water relative to the amount of coffee.

Is 1:17 weaker than 1:16?

Yes.

At 1:17, each gram of coffee is paired with more water, so the beverage will generally be less concentrated.

What is a 1:16 pour over ratio?

It means:

1 gram coffee for every 16 grams water

For example:

20 g coffee × 16 = 320 g water.

How much coffee for 8 oz pour over?

Use approximately:

15 grams coffee + 237–240 grams water

How much coffee for 10 oz?

Use approximately:

19 grams coffee + 300 grams water

How much coffee for 12 oz?

Use roughly:

22 grams coffee + 350–355 grams water

How much coffee for 16 oz?

Use approximately:

30 grams coffee + 475–480 grams water

How much coffee for 20 oz?

Use approximately:

37–38 grams coffee + 590–600 grams water

How much coffee for 250 ml?

Use approximately:

16 grams

How much coffee for 300 ml?

Use approximately:

19 grams

How much coffee for 400 ml?

Use:

25 grams

at a 1:16 ratio.

How much coffee for 500 ml?

Use approximately:

31 grams coffee

How much coffee for 600 ml?

Use approximately:

37–38 grams coffee

How much coffee for 750 ml?

Use approximately:

47 grams coffee

How much coffee for 1 liter?

Use approximately:

62–63 grams coffee

at a 1:16 ratio.

How many tablespoons of coffee for pour over?

A rounded tablespoon of ground coffee may weigh around 5–6 grams.

For 8 ounces of brewing water, roughly 2½–3 tablespoons is a practical estimate.

A scale is much more consistent.

What ratio does the Hario V60 use?

There isn’t one mandatory V60 ratio.

A good starting point is approximately:

1:16–1:17

Then adjust according to taste and brew behavior.

What ratio does the Kalita Wave use?

Kalita’s current brewing guide uses:

20 grams coffee + 320 grams water

which equals:

1:16

Kalita also suggests experimenting within roughly the 1:16–1:18 range.

What is the best Chemex ratio?

Chemex’s official instructions use one rounded tablespoon per 5-ounce cup and encourage adjustment according to taste.

For scale-based brewing, approximately 1:16–1:18 is a useful starting range.

What grind size should I use for pour over?

Start around:

medium to medium-coarse

The exact setting depends on the brewer, dose, filter, beans, and pouring technique.

What temperature should water be?

Approximately:

195–205°F (91–96°C)

is a useful general range.

Around 200°F is an easy starting point.

How much water should I use for the bloom?

Start with approximately:

2–3 times the weight of the coffee

For 20 grams of coffee:

40–60 grams water

is a useful bloom.

How long should I bloom?

Approximately:

30–45 seconds

is a common starting range.

Why does my pour over taste weak?

If it tastes balanced but simply weak, use a stronger ratio such as:

1:15

If it tastes thin and sour, try a finer grind or hotter water instead.

Why does my pour over taste too strong?

If it’s balanced but too concentrated, use:

1:17 or 1:18

If it tastes bitter or harsh rather than simply strong, look at grind size and brew time too.

Is 1:12 too strong for pour over?

It’s significantly stronger than most common everyday pour-over recipes.

It can be used intentionally, but beginners will generally have better results starting around 1:15–1:18 and making small adjustments.

Should I change the ratio for dark roast?

Not automatically.

Start at 1:16.

If the coffee is balanced but too intense, move toward 1:17.

If it’s bitter, experiment with cooler water or coarser grinding.

Should light roast use a stronger ratio?

Not necessarily.

Light-roasted coffee often benefits more from hotter water, finer grinding, or other extraction adjustments than simply adding more coffee.

🏁 The Bottom Line

If you’re trying to figure out how much coffee to use for pour over, you don’t need to memorize dozens of recipes.

Remember one number:

1:16

That’s one gram of coffee for every 16 grams of brewing water.

It gives you easy recipes such as:

15 g coffee + 240 g water
20 g coffee + 320 g water
25 g coffee + 400 g water
30 g coffee + 480 g water
31 g coffee + 500 g water
38 g coffee + 600 g water
47 g coffee + 750 g water
62–63 g coffee + 1 liter water

Then taste the coffee.

If it’s balanced but too weak:

Move toward 1:15.

If it’s balanced but too strong:

Move toward 1:17 or 1:18.

If it tastes sour, bitter, harsh, hollow, or otherwise poorly extracted, don’t automatically change the ratio.

Look at:

Grind size
Water temperature
Brew time
Pouring technique
Agitation

The goal of using a ratio isn’t to force everyone to drink identical coffee.

It’s to give you a repeatable recipe.

Once you know that yesterday’s excellent cup used:

20 grams of coffee + 320 grams of water

you can make it again tomorrow.

And once you can repeat it, you can improve it.

That’s when pour-over coffee stops being guesswork and starts becoming one of the most controllable—and rewarding—ways to brew coffee at home.

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