Some works often outshine their creators, like the Mona Lisa for Da Vinci, or the 4:6 method for Tetsu Kasuya. The core goal of this method, invented by the 2016 World Brewers Cup champion, is simple—to let anyone brew delicious coffee. It breaks a brew into five pours, each using three times the coffee dose in water, with the first two pours making up 40% of the total water to determine the sweet-and-sour direction, and the last three pours making up 60% to shape a rich, full-bodied mouthfeel. This article will fully break down the segmentation logic of the 4:6 method, the origin of the 45-second pouring interval, and conduct a real test using Front Street Coffee's Ethiopia Santa Vini beans to verify why this formula has an extremely high margin for error, and how to move beyond the formula and grasp its extraction philosophy. [more…]

Pour-over coffee techniques often intimidate beginners, requiring repeated practice to achieve consistent results. This article introduces a brewing method called "one-pour," publicly presented in 2019 by Tetsu Kasuya, the 2016 World Brewers Cup champion. Its core idea is to skip the bloom phase, pouring all the target water in a single large stream within 15 seconds, then letting the dripper complete the process through natural filtration. This method demands very little pouring skill and has low equipment requirements, yet yields coffee with lively flavors and rich fruity notes. Front Street will share improved parameters and flavor performance based on actual testing with the Hario Infinity dripper, making it a useful reference for coffee enthusiasts who want an easy introduction to pour-over brewing. [more…]

Based on the original 4-6 brewing method, Tetsu Kasuya made new adjustments to the hybrid brewing method. By changing only two operational details, he significantly improved extraction stability and uniformity. The hybrid brewing method combines immersion and drip filtration, and requires a smart dripper with a valve to execute. This time, Front Street Coffee uses a Diamond Mountain bean from Hacienda La Esmeralda as an example, and demonstrates the complete process of the new hybrid brewing method with a Hario V60 smart dripper, including the coffee-to-water ratio, grind size, staged pouring, and water temperature control, to help you understand the logic behind this brewing approach and adjust it flexibly according to your own taste. [more…]

"Absolutely delicious!" That's how Mr. Tetsu Kasuya introduced the coffee brewed with his improved hybrid brewing method at the beginning of one of his earlier videos. (Call me the screenshot master.) Front Street believes everyone is already familiar with Tetsu Kasuya. He is not only the champion of the 2016 World Brewers Cup, but also [more…]

World Brewers Cup champion Tetsu Kasuya has developed a Smart Cup brewing recipe called the "Devil Brewing Method," building on the 4:6 Method. This approach combines drip filtration with immersion: the first stage uses high temperature to extract flavor, while the later stage uses low temperature immersion to enhance body. It is simple to perform yet delivers outstanding results. After actual testing, Front Street Coffee also found its performance to be quite good. This article will break down the principles, parameter settings, and operating procedure of this brewing method in detail, and share how to adjust the sweetness-acidity balance of the coffee through water distribution. If you have a Smart Cup with a valve on hand, you may want to follow along with Front Street Coffee and try this simple and delicious brewing method. [more…]

World champion Tetsu Kasuya proposed a brewing method called "one-pour" in 2019, advocating pouring all the target water at once, skipping the blooming step and making pour-over extremely simple. However, it is often mistaken for the single-pour method, when in fact the two are clearly different. This article will comprehensively break down the characteristics of one-pour brewing from its principles, parameters, and operation process to actual measurement comparisons, and use Panama Boquete Geisha as a sample to compare the flavor performance after one-pour and single-pour brewing. At the same time, Front Street Coffee will also sort out five key details to note in one-pour brewing to help coffee lovers avoid misunderstandings. [more…]

The 4:6 brewing method was created by粕谷哲, the 2016 World Brewers Cup champion, and its core idea is to let everyone brew good coffee easily. This method splits the total water volume into five pours: the first 40% determines the flavor direction, and the latter 60% shapes the mouthfeel and strength. By adjusting the water volume of each pour, you can change the coffee's sweet-acid balance and body. In this article, Front Street will break down the pour proportions of the 4:6 method in detail, explain the principles behind extraction yield changes, and provide complete brewing parameters. At the same time, we will use Front Street Ethiopia Hachira beans for a hands-on demonstration to help coffee lovers deeply understand the essence of extraction and easily brew a delicious pour-over coffee. [more…]

The AeroPress, with its极高 playability, attracts many coffee enthusiasts to get involved, and the official organization even holds专属 competitions every year to see who is the best at "playing" with it. In this article, Front Street is going to share a universal extraction recipe from an AeroPress champion—this champion is none other than粕谷哲, the 2016 World Coffee Championship winner and inventor of the famous 4:6 method. This recipe adopts a high-concentration, low-extraction approach, using a large dose of coffee to extract a small amount of highly concentrated coffee liquid in a short time, then diluting it with water or ice to make a hot or iced drink. Using an Ethiopian Hamashu light-to-medium roast floral and fruity bean as an example, Front Street records in detail the dose, grind size, water temperature, extraction time, and inverted pressure operation steps, and also provides by-pass dilution suggestions and flavor tasting references. Friends who have an AeroPress at home should definitely give it a try. [more…]

Pour-over coffee usually starts with blooming, but Tetsu Kasuya, the 2016 World Barista Champion, proposed in 2019 a brewing method that skips blooming entirely—the one-pour method. It may look similar to the single-pour technique, but the differences are clear: the single-pour technique splits the water into two pours, while the one-pour method pours all the hot water in at once. This article covers the principles of the one-pour method, its differences from the single-pour technique, equipment and bean selection, grind adjustment, pouring direction, and the full process of Front Street Coffee's hands-on practice with a Colombia · Hope Estate Geisha, providing key parameters such as dose, ratio, water temperature, grind, and time to help you decide whether this minimalist brewing method suits you. [more…]

The 4:6 method was created by Tetsu Kasuya, and its core idea is to let anyone brew a consistently good cup of coffee. It splits a single pour into five stages: the first 40% of the water governs the flavor direction, while the latter 60% determines the strength of the body. Combined with an extra-coarse grind and fixed intervals, it greatly lowers the barrier to water control. This article lays out the standard parameters of the 4:6 method in full, including dripper choice, coffee-to-water ratio, grind passing rate, water temperature, and pouring rhythm. It also takes a deep look at the logic behind the coarse grind and the 45-second intervals, explains how adjusting the ratio of the early and late stages changes the sweet-and-sour profile, and shows how increasing or decreasing the number of stages lets you control body, helping you apply this method flexibly. [more…]

Want to easily make a refreshing, crystal-clear iced pour-over coffee at home? This article focuses on Mr. Tetsu Kasuya's one-pour brewing method, breaking down the complete process in detail, from equipment selection and parameter settings to pouring and stirring. Drawing on hands-on testing experience, Front Street Coffee will explain the logic behind the combination of 20 grams of coffee, 150 milliliters of water, and 80 grams of ice, and take a deep dive into how a slow-drip dripper, fine grinding, and the coffee-to-water ratio affect extraction. Whether you are a beginner just getting started or a coffee enthusiast looking to refine your technique, you will be able to master the core essentials and key points of the one-pour iced pour-over method. [more…]

On a scorching summer day, a refreshing glass of iced pour-over coffee is undoubtedly the best choice for cooling off and refreshing yourself. Compared with cold brew and iced drip, iced pour-over is quick to make and requires no special equipment, making it a favorite among many coffee lovers. Starting from the universal formula for iced pour-over, this article explains in detail the coffee-to-water-to-ice ratio, grind size adjustments, and the three-stage pouring technique, and uses Tanzania Kilimanjaro as an example to demonstrate the complete brewing process. It also introduces the "one-pour iced pour-over" developed by Tetsu Kasuya, which eliminates cumbersome techniques and uses the Mugen infinite cross-star dripper with 20 grams of Panama Abu Estate sun-dried Caturra to easily obtain a smooth, sweet-finish iced coffee. Whether you are a beginner or a seasoned enthusiast, you can find a summer iced coffee solution that suits you. [more…]

On a scorching summer day, a refreshing glass of iced pour-over coffee is nothing short of a lifesaver. This article focuses on the key points of brewing iced pour-over, starting with a simple, easy-to-remember universal formula—coffee grounds, hot water, and ice in a 1:10:5 ratio—then breaking down variables one by one, such as fine grinding, water temperature, and pouring rhythm, to help you recreate café-quality iced coffee at home. It then uses Tanzania Kilimanjaro as an example to demonstrate the standard three-pour iced brewing process, along with a grind size reference from Front Street Coffee shops. At the end, it also introduces Tetsu Kasuya's "one-pour iced pour-over," which needs only a slow-flow dripper and a spoon: pour with a strong stream of water and then stir, and the whole process takes less than two minutes, yielding a round, sweet cup. Whether you pursue precise control or want to save effort, you can find a suitable method. [more…]

A glass of iced pour-over in summer always brings a uniquely refreshing experience, but many coffee enthusiasts encounter all kinds of questions when trying to recreate it at home: How should the coffee-to-water-to-ice ratio be balanced? What water temperature should be used? What are the key points of the pouring technique? Drawing on practical experience from its stores, Front Street Coffee has summarized a simple and easy-to-follow universal formula for iced pour-over—coffee grounds paired with 10 times hot water and 5 times ice—and also provides a grind size adjustment plan to address the problem of under-extraction. In addition, it has also compiled Mr. Tetsu Kasuya's "one-pour iced pour-over" method, which is more direct to perform and suitable for friends seeking convenience. The full text covers specific parameters, operating steps, and flavor descriptions to help you easily make café-quality iced pour-over. [more…]

On a scorching summer day, a refreshing glass of iced pour-over coffee is undoubtedly the top choice for cooling down and recharging. But many people who try iced pour-over at home often run into the problem of the coffee tasting thin and bland after being diluted by the ice cubes. In fact, all you need is a simple universal formula—a coffee-to-water ratio of 1 part grounds to 10 parts hot water plus 5 parts ice—and then, following proper extraction logic, grind a bit finer, and you can easily make a glass of iced pour-over with both good strength and flavor. This article will break down in detail the principles behind adjusting iced pour-over parameters, the three-pour technique, and the convenient "one-pour iced pour-over" method developed by Mr. Tetsu Kasuya, so you can reliably replicate café-quality iced coffee at home. [more…]

At the 2021 WBrC World Coffee Brewing Championship, champion Matt won with a blend rather than Geisha, sparking widespread attention. His recipe consisted of 60% naturally processed Eugenioides and 40% washed Catuai; the former provides extremely high sweetness, while the latter brings clear acidity. In brewing, he used a metal V60 dripper, a 1:15 coffee-to-water ratio, five-pour pouring, and innovatively controlled the water temperature in two stages: 93°C and 88°C. Through video analysis, Front Street Coffee found that his pouring ratio closely resembles Tetsu Kasuya's 4:6 brewing method. This article provides a complete analysis of this competition regimen, which balances sweetness and complexity and offers extremely high compatibility, for coffee enthusiasts to reference and learn from. [more…]

In the world of pour-over coffee, differences in brewing technique directly affect the final flavor expression in the cup. Some people prefer a light-bodied style with bright acidity, while others pursue an experience with a prominent, rich sweetness. Compiled by Front Street Coffee, this article systematically reviews seven currently mainstream pour-over brewing methods, including the single-pour method, the three-stage pour, the 4-6 method, the volcanic pour, variable-temperature brewing, the stirring pour, and the drip method. It analyzes each technique one by one in terms of operational characteristics, flavor tendencies, and suitable scenarios, helping coffee enthusiasts choose the brewing strategy that best suits their needs. [more…]

The charm of pour-over coffee lies in its ever-changing brewing methods, where different techniques bring out completely different flavor expressions. This article will systematically break down six common pour-over techniques—one-pour, three-stage, 4:6 method, three-temperature brewing, volcano pour, and agitation method—analyzing each one from water-pouring logic and parameter settings to flavor direction. Whether you're a beginner just getting into pour-over or an advanced player looking for a breakthrough, you'll find a key that suits you. At the same time, Front Street Coffee will also share its most commonly used three-stage brewing experience, helping you understand the underlying principles of flavor release, so you can draw inferences and apply them flexibly. [more…]

In pour-over coffee, when extraction parameters are too high, it is usually possible to dial them back, but if over-extraction is caused by too many fines from the grinder, adjusting parameters alone is often not enough to solve the problem. In this case, sifting out the fines or adopting variable-temperature brewing are both response options recognized by Front Street Coffee. This article will focus on variable-temperature brewing: it is not a minor adjustment of 2~3°C, but rather segmented extraction with a larger temperature differential, controlling the dissolution rhythm of flavor compounds through high-temperature fast extraction and low-temperature slow release. The article will trace the origins of this method, analyze the championship cases of Wu Zelin and Emi, explain how to use cold water to regulate temperature and achieve a variable-temperature operation that starts high and ends low, and share in detail the practical process of the "Devil Brewing Method" by Tetsu Kasuya, which Front Street Coffee favors. [more…]

Compared to other single-origin coffees, pour-over coffee has a great many brewing methods. For example: one-pour, three-stage, volcano pour, variable-temperature brewing, stirring, and so on. Today let's get to know some of the brewing methods that commonly appear in pour-over coffee~ 1. One-pour The one-pour method and the single-pour method are still [more…]