Introduction:Want to brew a pour over coffee with distinct layers and clear flavors? Pulse pouring is the key technique. This article dives deep into three popular methods—Three-Pour Technique (三刀流), Three-Stage Pouring (三段式), and Single-Pour (一刀流)—starting with practical parameters from beans of Costa Rica’s Pilón mill. We’ll break down water temperature, coffee-to-water ratio, pouring rhythm, and pulse logic in detail, teaching you how to precisely control the release of front, middle, and back-end flavors. We also address common questions like “when to stop pouring” and “when to continue,” helping you easily improve your pour over stability and flavor performance.

In the world of pour over brewing, from Single-Pour to Three-Pour Technique, and even styles like Volcano Pour or Drip-by-Drip, each method has its unique charm. Among them, the Three-Pour Technique, as a typical representative of pulse pouring, not only presents a richer flavor profile—letting you clearly distinguish the bright acidity of the front end, the rich sweetness of the middle, and the clean aftertaste of the back—but also effectively reduces water loss along the edge of the filter, improving overall extraction stability. However, this method demands precise control over pour speed and volume, requiring some practice and understanding.

Pulse pouring is actually a quite common approach in pour over brewing and can be seen as an advanced variation of the Single-Pour. Simply put, it divides the total water volume into multiple pours, with the Three-Pour Technique (i.e., three main pouring stages) being one of the most representative methods. Compared to the Single-Pour, which involves a single continuous pour, pulse pouring delivers more nuanced flavor separation. Since the pouring rhythm is more controllable, it helps avoid the “channeling effect” where water flows only along the edge of the filter, leading to more even extraction. Of course, this also means you need to be more skilled at balancing flow rate and water volume.

Taking a coffee bean from Costa Rica’s Pilón mill as an example (it's recommended to use a medium-light roast with flavors leaning toward citrus, floral notes, and honey sweetness), we’ll use the common V60 filter for a hands-on walkthrough. The specific parameters are set as follows: water temperature 90°C, coffee grounds weight 15 grams, grind size of about BG 5R (58% passing through a Chinese Standard No. 20 sieve, equivalent to medium-fine grind), coffee-to-water ratio of 1:15(final total water volume of about 225 grams). Below are the detailed steps for pulse pouring:

The first step is the bloom—using 30 grams of water to pre-wet 15 grams of coffee grounds for 30 seconds . When you observe the coffee surface transitioning from fully wet to slightly dry on top (no more visible pooling), the bloom is complete. This step awakens aromatic compounds in the grounds and lays the foundation for subsequent extraction.

Next comes the first stage of pouring: using a relatively slow and small stream,pour slowly around the center until you reach 120 grams(at this point, the total water volume is 30 grams from the bloom + 90 grams from this stage = 120 grams). This stage recommends a slight pause (a so-called “pulse”), allowing the coffee grounds to soak evenly in the water to promote full release of the front-end flavors, while avoiding fast flow that may lead to over-extraction along the edges.

When the water level naturally drops to about two-thirds remaining (approximately halfway down the filter), move on to the second stage: switch to a larger stream and pour more quickly,continuing until the total water volume reaches 225 grams . In this stage, pay attention to controlling the flow rate to avoid extracting overly bitter or astringent compounds from the later stages due to fast pouring, while ensuring the lower coffee grounds are also evenly penetrated to improve overall extraction efficiency.

So, what’s the most common question beginners ask?“Exactly when should I stop pouring? And when should I continue?” The answer mainly depends on two key factors—the roast level of the coffee beans and the rise of the liquid level during brewing.

If you’re using lighter roasted beans (like the Costa Rica Pilón beans mentioned above), their lower gas release means there’s less internal support after pouring, and the soaked grounds can easily settle to the bottom. Water pooling on top might not effectively agitate the lower layers, resulting in uneven extraction. In such cases, it’s recommended to pulse when the water level builds up, then continue pouring once the level drops naturally—this helps resolve the issue.

Another observation point is the speed of the liquid level rising. If the initial pour volume is large and you notice the water level rising too quickly (e.g., higher than expected), you can proactively adopt a pulse strategy, extending the brewing time slightly by letting the level fall before continuing to pour. This not only avoids under-extraction due to fast flow but also helps you control the overall extraction rhythm more accurately.

Why use pulse pouring at all? Beyond enhancing flavor layering and extraction evenness, another important role of pulsed water is maintaining the stability of the coffee “wall” along the edge of the filter. Continuous pouring can break the wall, causing shortcuts in water flow; whereas pulsed pouring allows the coffee grounds to redistribute between pours, and the process of water penetrating pooled water more directly targets the lower grounds, improving overall extraction efficiency.

Regarding the "optimal timing for the next pour," many baristas do not simply resume pouring water after just a brief pause in practice. Generally, it is recommended to wait until the water level drops toAs for the “best timing to pour again,” many baristas don’t just wait briefly before continuing. Generally, it’s recommended to wait until the water level drops to about half or two-thirds

before pouring again. This has two benefits: first, the water won’t be too high, which could lead to over-extraction at the top and under-extraction at the bottom; second, the level won’t drop too low and expose the coffee bed, preventing uneven extraction between layers. When the water reaches an appropriate height, it can more evenly penetrate the entire coffee bed, ensuring every coffee particle is fully extracted.

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