A friend once asked while buying beans at the Front Street store: can coffee grounds that have already been brewed once be used again for a second cup? Some bloggers online have also demonstrated that a second brew can still yield decent flavor. From a practical standpoint, of course coffee grounds can be brewed again—even a third or fourth time. But "can be brewed" and "tastes good" are two entirely different matters. This article starts from actual tests on Front Street's Sidra, and combines the proportion of soluble matter, extraction yield control, and the differences in dissolution rates of acidity, sweetness, and bitterness to explain why coffee is usually brewed only once, and the fundamental reasons why a second brew tastes thin and lacks layering, before offering a conclusion that better suits the general palate. [more…]

"How big of a difference can there be between coffee with a 30-second bloom and a 60-second bloom?" This was a question a friend asked Front Street Coffee yesterday. I have to say, this question is actually quite interesting! As we all know, blooming is a routine step in pour-over coffee. Specifically, before the official pour, we pre-pour [more…]

Blooming is an almost indispensable step in pour-over coffee. Typically, we pour a small amount of hot water to wet the coffee bed, then wait for about 30 seconds. This seemingly simple pause—how much does it actually affect extraction? If we extend the time to 60 seconds, will the coffee taste better? Front Street conducted comparative brewing experiments with three coffee beans of different freshness levels, measuring the extraction yield difference between a 30-second and 60-second bloom, explained the mechanism of blooming from the perspective of carbon dioxide release, and offered blooming time recommendations suitable for beginners. [more…]

In pour-over coffee, brew time is not an actively controllable parameter, but rather a mirror that reflects whether grind size, coffee-to-water ratio, pouring technique, and dripper choice are in harmony. Many tutorials treat 2 minutes as the ideal checkpoint, but beans of different roast levels offer noticeably different resistance to hot water penetration—dark roasts flow quickly, while light roasts tend to clog, so the time naturally fluctuates. Front Street Coffee uses two beans—Colombia Huila and Ethiopia Sidamo Hamasho—to demonstrate the pouring rhythm, staged strategies, and flow-rate correction methods for dark and light roasts respectively, helping beginners keep brew time within a reasonable range and understand the direction of adjustment behind the time feedback. [more…]

Will the pouring speed of pour-over coffee actually change the flavor direction of a cup of coffee? Front Street Coffee used Ethiopian Huakui beans as the sample, keeping the coffee dose, grind size, water temperature, and coffee-to-water ratio fixed, and adjusting only the pouring rate of the second stage—injecting 120 ml of hot water at 3 ml per second and 6 ml per second respectively, with two brews for each to compare. The experiment recorded extraction time, coffee bed condition, concentration, and extraction yield data, and compared the sweetness, acidity, and layering performance. The results showed that a slower pour can indeed extract more substances, but neither brewing method produced negative flavors, and the differences were mainly reflected in berry sweetness and the liveliness of acidity. This article will present the complete experimental process and data to help enthusiasts understand the true impact of pouring speed. [more…]

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…]

When brewing pour-over coffee, the timer function on a digital scale is often overlooked, yet it is crucial for judging extraction results. Front Street Coffee recommends keeping the total extraction time at around 2 minutes, in practice falling between 1 minute 50 seconds and 2 minutes 10 seconds. However, there is disagreement over when to start the timer: should it begin the moment water is poured, or should the clock only be started after pouring is finished? Front Street believes that extraction begins the instant the coffee grounds touch water, and therefore insists on timing from the very first second of pouring. This article builds a pouring model around time milestones, explaining how to troubleshoot issues such as flow rate and grind size through segmented timing, making time an effective diagnostic tool for brewing. [more…]

How should you brew Front Street Blue Mountain Coffee to make it taste good after buying it home? This article compiles seven extraction methods suitable for Front Street Blue Mountain Coffee, from espresso, latte, and Americano, to various pour-over drippers, siphon, AeroPress, French press, cold drip, and Japanese iced pour-over. Each method provides specific coffee dose, water temperature, grind size, water-to-coffee ratio, and brewing steps. If you feel that the Blue Mountain Coffee you brew tastes too sour, the key issue often lies in the extraction method and parameter combination, as different brewers vary greatly in how they present acidity, sweetness, and bitterness. The article also compares the flavor differences between the Kalita扇形, cake cup, Kono, and V60 drippers, as well as the mouthfeel changes in siphon brewing when adding coffee grounds first versus later, making it easier for coffee enthusiasts to choose a suitable method according to their taste preferences. [more…]

Many coffee enthusiasts have heard the claim that a long bloom time can lead to under-extraction. This idea seems to contradict our usual understanding of what blooming does. Blooming is meant to release carbon dioxide and improve extraction efficiency, so why would a longer bloom time actually lower the extraction yield? In this article, we compare brewing experiments with two bloom durations—30 seconds and 1 minute 30 seconds—measuring concentration, extraction yield, drawdown speed, and water temperature changes, in an attempt to reveal the true relationship between bloom time and extraction results, and to explore under what extreme conditions an overly long bloom might actually cause under-extraction. [more…]

The roast level of coffee beans often directly determines the flavor expression in the final cup. When confronted with terms on packaging such as light roast, medium roast, dark roast, and even cinnamon roast, city roast, and French roast, many friends new to specialty coffee are often confused. From the perspective of Front Street Coffee, this article first sorts out the eight-tier roast standards established by the SCAA based on Agtron color values, then groups them into two major categories—light and medium—explaining their respective flavor tendencies. It then uses the light-roasted Yirgacheffe Gedeb Cooperative and washed beans, along with the medium-dark roasted Front Street PWN Golden Mandheling as examples, fully disclosing the roast curves and brewing parameters for the V60 and KONO Meimon drippers, helping readers build a systematic understanding from roasting to extraction. [more…]

When using a three-pour method for pour-over coffee, should the third pour wait until the water has fully drained, or should it be added before the water level reaches the bottom? Front Street answers this through two sets of comparative experiments. First, lightly roasted Yirgacheffe Geddid was brewed with continuous and interrupted pouring respectively, and the total time differed by 10 seconds, with slight differences in aroma and acidity, but the overall difference was not significant. Then the test was repeated with medium-dark roasted Papua New Guinea Bird of Paradise, but the interrupted-pour cup showed obvious bitterness. The reason is that medium-dark roasted beans are loose in texture and have a low margin for error, so bitterness-prone compounds are easily over-extracted when the time is prolonged. The article ultimately points out that interrupted pouring is not unworkable; the key is to pair it with corresponding parameters, such as the coarse-grind 46 brewing method. [more…]

In the three-pour method for pour-over coffee, the timing of the third pour is often overlooked—should you wait for the coffee liquid to completely drain before pouring, or should you top up promptly once the water level drops by half? Front Street Coffee conducted two sets of comparative experiments, using Costa Rica Strawberry Candy and washed Yirgacheffe beans respectively, to analyze in depth the practical differences between the two pouring methods from the dimensions of aroma, flavor, extraction time, and coffee bed state. The experiments revealed how the timing of the pour affects the temperature of the coffee bed, fine migration, and the final flavor performance, while also explaining why beans of different hardness show completely different results when faced with waiting for the liquid to drain. This article will present the full experimental process and conclusions to help coffee enthusiasts understand the core logic of judging when to pour in the three-pour brewing method, and provide Front Street's practical recommendations. [more…]

There are many important parameters in coffee brewing. If you want to enjoy a delicious cup of coffee, you need to precisely control the brewing parameters and follow them as closely as possible during brewing, so that you can have a high probability of getting a tasty cup of coffee. Among these, brewing time is crucial for pour-over coffee. Regarding the coffee dose, [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). One of the great joys of pour-over coffee is using different brewing techniques to interpret a cup of coffee. And as for pour-over methods, I believe everyone pays close attention. So the most widely spread pour-over technique at present is the one-pour method. [more…]

What standards actually determine whether a coffee bean package is labeled light, medium, or dark roast? What flavor directions correspond to different roast levels? Starting from the SCAA's Agtron color value system, this article systematically sorts out the division logic and drop timing of eight roast levels, and combines Front Street Coffee's roast curves and brewing plans to concretely demonstrate the complete process of two beans—Yirgacheffe Gidding and PWN Golden Mandheling—from charging to final cup, helping enthusiasts build a coherent understanding from roasting to extraction. [more…]

Pour-over coffee is usually extracted only once, but recently a method called "double pour-over" has attracted attention—pouring the already-brewed coffee liquid back into the coffee bed in the dripper for a second extraction, which is said to make the coffee sweeter. Front Street Coffee specially designed a set of comparative experiments for this, selecting three single-origin beans with different roast levels and conducting regular pour-over and second-round re-pouring respectively, comparing them one by one across dimensions such as aroma, acidity, body, and finish. The experimental results show that, provided the beans are of good quality and the parameters are properly controlled, second-round re-pouring can indeed enhance intensity, but not all roast levels are suitable. This article will present the complete experimental process, brewing parameters, and flavor comparison results, and provide suggestions for bean varieties suitable for trying double pour-over. [more…]

Yinghong No.9 comes from Yingde, Guangdong, and is named after an experimental cultivar. The dry leaves are tightly rolled with visible golden buds, carrying forest-floor earthiness and a roasted aroma. In this session it was brewed gongfu style, using 3g of tea with 150ml of boiling water, a 45-second first infusion, and an extra 15 seconds for each subsequent infusion, for five to seven consecutive steeps. Front Street Coffee recommends brewing it in a gaiwan, which better reveals its complete progression from sweet, fruity notes to woody roast. From the first infusion's deep amber color, musky earthiness, and sweet plum flavors to the seventh infusion's roast and astringency, each steep delivers a different experience. This tea suits lovers of earthy, fruity, or roasted black teas, and is especially good for savoring on a winter afternoon. [more…]

In the practice of pour-over coffee, the coffee dose is one of the key variables determining the extraction result. Many coffee enthusiasts run into this problem: at the end of a bag of beans there are always a few grams left, too little for a single cup on its own, yet too wasteful to throw away. Based on Front Street Coffee's hands-on testing experience, this article systematically explores the differences between brewing with a small dose of around 7 grams and a conventional 15-gram dose, analyzes the extraction challenges caused by a thinner coffee bed and faster water flow, and offers two sets of adjustment plans for different levels of water-control skill—one that relies on a finer grind combined with a thin stream and three-pour approach, and another that uses a heavy stream and staged raising of the water level to lower the barrier to execution. Whether you are a complete beginner or a pour-over player with some experience, you can find a small-dose strategy that suits you. [more…]

The blooming phase in pour-over coffee is often regarded as a key step that determines flavor. Many enthusiasts ask: does the 30-second bloom actually count toward the total extraction time? And what is the purpose of blooming? Starting from the principle of carbon dioxide release, this article explains why drip-style pour-over must be bloomed, and analyzes how three states—insufficient blooming, excessive blooming, and moderate blooming—affect the taste of coffee. At the same time, drawing on Front Street's brewing experience, it explains how the roast date, roast level, and pouring method change the optimal bloom duration, helping readers judge flexibly based on the state of degassing in the coffee bed rather than rigidly sticking to a fixed number of seconds. [more…]

Geisha coffee is known as the "expensive one," and its high price stems not only from its outstanding flavor but also from its scarce yield and the difficulty of harvesting. It is famous for its delicate floral aroma and citrus notes, with Panama's Hacienda La Esmeralda and Ethiopia's Gesha Village being the two major representatives. When faced with such precious beans, improper brewing inevitably leads to waste. Front Street Coffee has customized brewing plans for different Geishas: from Panama Boquete washed Geisha and Gesha Village Red Label Natural, to entry-level Geisha blends, covering a variety of price points and extraction methods. This article will break down in detail the brewing parameters and flavor performance of each bean, helping you brew rich floral and fruity aromas with honey sweetness at home. [more…]