What Coffee-to-Water Ratio Should Pour-Over Coffee Use?

The coffee-to-water ratio sets the strength and extraction of the finished cup, and it is the first parameter to lock in. A workable starting point is 15 grams of coffee at a 1:15 ratio with 225 milliliters of total water, poured in three stages of 30, 95, and 100 milliliters. That framework keeps results repeatable while the grind and water temperature are adjusted.

Pour-over simply means grinding coffee to powder, then letting hot water dissolve the soluble material in the coffee bed while a dripper and filter paper hold the grounds back. Beyond the ratio, the tools matter: a pour-over kettle, dripper, filter paper, server, grinder, and a scale that records both water amount and timing. A washed Yirgacheffe brewed in a Hario V60 is a useful reference setup.

The coffee-to-water ratio in pour-over coffee directly determines the strength and extraction yield of the final cup, and it is the first core parameter beginners must master. This article draws on Front Street Coffee's brewing experience, first explaining what the coffee-to-water ratio means and how to calculate it, then explaining why staged pouring is necessary, and offering a universal three-pour method suitable for beginners: 15 grams of coffee, a 1:15 ratio, 225 milliliters of total water, divided into three pours of 30, 95, and 100. The article also includes a list of equipment, bean selection suggestions, reference water temperature and grind size, and specific operating steps using Front Street washed Yirgacheffe with a Hario V60, helping readers build a stable brewing framework.

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I wonder if you still remember the scene when you first encountered pour-over coffee. Front Street's impression is that one day, walking into a café, we saw a barista holding a kettle, pouring water in circles over the coffee grounds in the dripper, and finally serving a cup of aromatic black coffee. At that moment it felt truly wonderful, and from then on we fell in love with pour-over coffee.

What exactly does pour-over coffee mean?

During high-temperature roasting, coffee beans undergo various chemical reactions and produce rich aromatic substances, and the essence of brewing is to use water and equipment to release these aromatic components. The pour-over method is to first grind the coffee beans into powder, then bring hot water into contact with the coffee bed to "dissolve" the soluble substances in the coffee. Put simply, it relies on a dripper together with filter paper or other tools to retain the coffee grounds and keep them from falling into the server, ultimately producing a clean and transparent cup of black coffee.

From bean selection to extraction, every step and stage will have a greater or lesser effect on the flavor of pour-over coffee. Therefore, based on Front Street's brewing experience, to brew a good pour-over, besides high-quality coffee beans, Front Street believes you should at least have these tools ready: a pour-over kettle for pouring water, a dripper and filter paper to retain grounds, a server, a grinder, a scale that can record water amount and time, and a thermometer to measure water temperature.

A good cup of coffee is inseparable from good raw materials—high-quality coffee beans. Front Street recommends choosing beans 4 to 30 days after the roast date, when they are in their optimal flavor window, so extraction is more stable and the pour-over flavor is fuller. To ensure freshness, the coffee beans shipped by Front Street are freshly roasted within 5 days, and generally arrive in 1 to 3 days, so by the time you receive them they are basically within the optimal flavor window and you can start practicing extraction right away.

What is the pour-over coffee-to-water ratio? And how should it be calculated?

The coffee-to-water ratio refers to the ratio of coffee grounds to total poured water, and it directly affects the strength of the coffee. Regardless of the brewing method, Front Street sets this ratio before extraction. For example, Front Street's store output usually uses 15 grams of coffee grounds per single cup at a 1:15 coffee-to-water ratio, meaning a total of 225 milliliters of hot water is poured.

Other conditions being equal, the more water poured, the lower the coffee strength and the more dispersed the taste; the less water poured, the higher the strength and the more concentrated and full-bodied the flavor. At the same time, increasing the amount of water raises the extraction yield, allowing more soluble substances to enter the cup (extraction yield is the proportion of dissolved solids extracted from the coffee relative to the weight of the coffee grounds). However, the further you pour, the more extraction efficiency gradually declines, and it is easy to bring out undesirable bitter compounds that affect the final taste. Therefore, you must find a suitable coffee-to-water ratio to adjust strength and extraction yield to the ideal state.

Why pour in stages?

You will often see a barista stop halfway through pouring, wait for the water level to drop, and then continue adding water. This is staged extraction.

In the first stage, a small amount of hot water is poured to wet the coffee grounds, with the aim of releasing gas inside the coffee bed so it does not interfere with later extraction. This step is called "blooming." The most common approach is to pour water at twice the weight of the coffee grounds and let it bloom for 30 seconds; for example, if Front Street uses 15 grams of coffee, it pours 30 milliliters of water to bloom, and this is also the easiest "blooming formula" for beginners. Staged pouring is classified by whether pouring pauses after blooming: if the pouring after blooming is divided into two stages, then adding the bloom makes it "three-stage pouring," and so on; if there is no pause after blooming and all the water is poured at once, it is called "one-pour flow."

Baristas use staged extraction because different substances are released at different rates during pour-over, and the order in which hot water releases flavor is roughly acidity, sweetness, then bitterness. With staged pouring, under the same coffee-to-water ratio, the more stages there are, the less water in each stage, the more times the coffee bed is washed and agitated, and the higher the extraction yield becomes.

In addition, increasing the number of stages lengthens the total extraction time, releases more substances at each stage, and creates richer flavor layers. But Front Street wants to remind you: the more stages, the longer the operation time and the greater the risk of over-extraction, and the later stages easily extract large-molecule substances that instead cover up the sweetness. So it is clear that more stages is not necessarily better. Then how should the water amount for each stage be calculated?

The universal three-stage pour-over method

Based on past brewing experience, Front Street recommends that beginners use three-stage pouring. Three-stage extraction helps more fully dissolve flavor substances and enhances the layering of the taste, while avoiding over-extraction caused by steeping too long.

If using 15 grams of coffee grounds, a 1:15 coffee-to-water ratio, and 225 milliliters of total water, the three-stage water amounts can be divided as: 30 milliliters, 95 milliliters, and 100 milliliters, with the scale readings in order being: 30 grams, 125 grams, and 225 grams.

Here Front Street uses its own roasted washed Yirgacheffe Gutingding Cooperative coffee beans, paired with a Hario V60 dripper for brewing. The V60's spiral rib design helps the coffee grounds degas better and maximizes the volatilization and dissolution of aromatic acidic substances. Because Yirgacheffe is a light roast, the beans are harder, and hot water at 92°C-93°C is needed to bring out the floral and fruity notes.

As for grind size, Front Street recommends a medium-fine grind (78% passing through a Chinese standard No. 20 sieve), with a coarseness close to fine granulated sugar. If it is ground too coarse, it is difficult to extract a rich, rounded flavor and the coffee will taste thin; if the particles are too fine, it is easy to over-extract at high temperature and produce bitterness.

As for the brewing ratio, Front Street believes 1:15 to 1:16 are both fine. If you want a richer taste, use 1:15; if you want to perceive the floral and sweet notes more clearly, use 1:16 to let the flavors open up more.

First place the folded filter paper into the dripper so it fits snugly, add 15 grams of ground coffee, and then tare the scale to zero.

For the first stage, pour 30 grams of water and bloom for 30 seconds, starting the timer as you pour. Throughout, use a small stream and circle outward from the center point, making sure to wet the entire coffee bed.

After 30 seconds, use a slightly larger steady stream to pour the second stage of 95 grams of water, with the aim of raising the entire coffee bed. The stream should be poured vertically and evenly. At this point the timer scale shows 125 grams, and the pour is finished at about 55 seconds.

When the liquid level drops to the halfway point, begin pouring the third stage of 100 grams with a thin stream in small circles, trying to control the stream so the circles are not too large, otherwise it is easy to break up the coffee bed and cause under-extraction. The final total poured water is 225 grams, and the drip finishes in about 2 minutes. After removing the dripper, swirl the coffee liquid in the server to mix it evenly and it is ready to taste.

The water amount for each stage is not fixed and can be flexibly adjusted based on your accumulated pour-over experience and understanding of the beans. Front Street believes there are thousands of paths to brewing a good cup of coffee; as long as you study more and practice more, it is not difficult to easily master the various parameters of pour-over.

The above content is compiled by CoffeeHunters, a coffee news website.