Cupping is a common method used in the coffee industry to evaluate bean quality, but why not use pour-over instead? This question takes us back to the origins of cupping. Cupping originated in the 1980s in the American coffee trade; in order to quickly, conveniently, and with minimal human intervention test large batches of coffee beans, immersion extraction came into being. Today cupping is widely used in competitions, appraisal, and research. This article will introduce in detail the standard parameters and complete process of cupping, including grinding, pouring water, breaking the crust, skimming, and tasting, and will also explain the definition of triangle cupping and how it differs from regular cupping. Front Street Coffee will also share a method for easily doing cupping at home to help you improve your tasting ability. [more…]

Drip coffee bags have always been primarily brewed with hot water, but some coffee enthusiasts prefer a rich and smooth taste, so they try using milk directly to extract the drip bag, hoping to create a homemade version of a latte. Can milk really replace hot water to complete the extraction? Front Street found through actual testing that due to the high protein and lactose content in milk, its extraction capacity is far inferior to hot water. If the conventional drip bag brewing method is directly applied, it often results in a cup of coffee with a weak flavor or even sourness. To compensate for this deficiency, Front Street tried a method of first blooming with hot water, then injecting heated milk in stages, and provided bean selection suggestions for different roast levels. However, the test results showed that after the milk comes into contact with the coffee grounds, the fine particles swell and clog the filter bag, and the entire process takes up to twenty minutes, which is far from the original intention of the convenience of drip bags. So, what other more convenient options are there for those who want to drink drip bag milk coffee? This article will reveal them all. [more…]

When brewing coffee, most people focus on whether the water's TDS is in the appropriate range, but few pay attention to whether repeatedly boiling the hot water affects the coffee's flavor. Some believe that coffee brewed with water that has been boiled multiple times will decline in quality. To verify this claim, Front Street Coffee designed a controlled experiment, using a TDS test pen and a coffee concentration meter, brewing a medium-light roasted Sidamo Hachira 8.0 by immersion in a clever cup, using water boiled for the first through fourth times respectively, and recording the TDS value of the water and the coffee concentration performance each time. This article will present the experimental setup, operating procedure, and data results one by one, to help coffee enthusiasts determine whether repeatedly boiled water is truly unsuitable for brewing coffee. [more…]

When the weather heats up, everyone's demand for a pick-me-up coffee rises along with it, and a number of new questions have been popping up in the backend. A reader asked Front Street Coffee: can coffee be brewed directly like a teabag? She felt that drip bags require pouring water in stages and controlling the water volume, which isn't convenient enough. This question actually brings up the fundamental difference in extraction principles between two common convenient coffee formats—steeped bags and drip bags. This time, Front Street Coffee used the same batch of beans to conduct a comparison between hot brewing and cold brewing, testing everything from grind size and coffee-to-water ratio to steeping time, in an attempt to figure out whether coffee brewed in filter bags actually tastes good, and which one is more suitable for which scenarios. [more…]

The flavor expression of pour-over coffee depends to a large extent on whether the grind size is appropriate. The grind size directly affects the speed at which water passes through the coffee bed and the amount of coffee compounds released; too coarse and the flavor is weak, too fine and the flavor is strong or even bitter. This article begins with the mechanism by which grinding affects flavor, introduces a method using granulated sugar particles as an intuitive reference, and further provides the operational details for precisely checking grind size with the Chinese standard No. 20 0.85mm sieve, along with Front Street's specific setting recommendations for medium-light and medium-dark roasted beans. In addition, it also outlines extraction time as a reference standard for judgment, as well as key factors affecting the taste of pour-over coffee such as coffee bean selection, making it suitable reading for coffee enthusiasts who want to systematically master grinding techniques. [more…]

Yirgacheffe is Ethiopia's proud specialty coffee calling card, and also the entry-level choice and long-time beloved favorite of countless coffee enthusiasts. This article focuses on Front Street Yirgacheffe: first analyzing the berry and floral-fruity notes in its dry and wet aromas, comparing the flavor differences between natural and washed processing methods; then breaking down the structural features of the V60 conical dripper and the Kalita cake cup, including Front Street's complete tested brewing parameters, covering grind size, water temperature, coffee-to-water ratio, and extraction time; finally providing purchasing reference, a half-pound 227 grams sells for only 80-90 yuan, with a single cup costing about five or six yuan, allowing you to easily brew a high-quality cup of Yirgacheffe at home. [more…]

A good cup of tea is seventy percent about the water. Many people focus only on the tea leaves when brewing, overlooking the decisive influence water quality has on flavor. Water hardness, pH, chlorine content, and total dissolved solids all directly affect the clarity and aromatic layers of the tea liquor. Drawing on real-world cases, this article explains why hard water causes iced tea to turn cloudy, how chlorine masks tea aroma, and offers actionable testing and filtration solutions. It also includes target water temperatures and steeping times for the six major tea categories, along with flavor references for common tea varieties. Whether you run a coffee shop or are a tea enthusiast, you'll find practical methods here to improve the consistency of your output. At the end, there's also information about Front Street Coffee's related products, which is worth checking out. [more…]

Drip bag coffee has always been primarily brewed with hot water, but many coffee enthusiasts want to use milk to directly brew a latte. Milk's extraction ability is far inferior to hot water, and after heating, the proteins and lactose undergo changes, so directly applying conventional methods clearly won't work. Front Street once conducted a dedicated experiment: first bloom with hot water, then inject 75°C hot milk in two stages, and prioritize medium-dark roasted drip bags, such as Bird of Paradise, Queen's Estate, Golden Mandheling, Huilan, etc. If you prefer fruity acidity, Sipr, Big Belly Button, and Strawberry Candy are also good choices. However, testing revealed that after milk contacts the coffee, the fine particles swell and easily clog the filter bag, taking nearly 20 minutes in total, which contradicts the convenience that drip bags are meant to offer. This article will fully present this experiment and share a more effortless iced milk cold brew method, allowing you to easily achieve latte freedom. [more…]

The Hario V60 Mugen dripper is composed of a detachable 12-blade and base assembly, completely different from the common one-piece drippers. The resin material is heat-resistant and shatterproof, and the blade colors can be freely mixed and matched. It has no cup wall, and the filter paper is supported entirely by the blades, which serve both as a skeleton and as flow guides. In actual testing, the average flow rate after filling with water is about 8ml/s, faster than Kono but slower than the V60's 10ml/s, placing it in the medium-fast range. However, the longer blades raise the pouring height and increase the impact force, making it prone to over-extraction with doses under 20g; it is better suited to 20g or more with an 02-size filter paper. Front Street Coffee also found that removing the blades unlocks a variety of brewing methods, including single-serving setups. [more…]

In a cup of black coffee, water makes up the vast majority, so its impact on flavor must not be underestimated. Different brands of drinking water vary in mineral composition, hardness, and pH, so the coffee brewed with them naturally takes on different characteristics. To investigate this variable, Front Street Coffee selected four common drinking waters—Baisui Mountain, Nongfu Spring, Ganten, and C'estbon—and used the same Costa Rica Mozart coffee beans to make cold brew, measuring TDS, coffee liquid concentration, and recording flavor performance one by one. The experiment found that the amount of calcium and magnesium ions in water affects extraction efficiency and taste direction, while Nongfu Spring with medium TDS and C'estbon purified water each showed distinct stylistic differences. This article will present the full experimental process and tasting results, and offer water selection suggestions for different taste preferences. [more…]

When brewing pour-over coffee, many people habitually rinse the paper filter with water first, aiming to make the filter cling tightly to the dripper. But does whether the filter clings or not really sway the taste of a cup of coffee? Front Street used a V60 and Yirgacheffe Red Cherry to run a set of comparison experiments, dividing filter states into four types: fully clinging, folded edge sticking up, placed crookedly, and not clinging at all, and recorded extraction time and flavor differences for each. The results showed that although the degree of clinging does not change the overall direction, it does leave traces on sweetness, acidity, mouthfeel, and astringency. Below, we break down the reasons one by one in the context of the brewing process. [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…]

Among the many variables in pour-over coffee, the brew ratio is often overshadowed by grind size and water temperature, yet the amount of water directly determines the direction of the final cup's flavor. Front Street Coffee used a washed Butterfly with 70% Geisha content as a sample and, while keeping grind size, water temperature, and brewing technique constant, conducted comparative brews using four brew ratios: 1:15, 1:16, 1:17, and 1:18, recording the extraction time and flavor performance of each ratio one by one. Starting from actual brewing data, this article will analyze how different brew ratios affect the concentration, complexity, and aftertaste of coffee, helping coffee enthusiasts find the brew ratio that better showcases the characteristics of flavor-rich beans like Geisha. [more…]

Brazil is the world's largest coffee producer, offering both large-scale commercial beans and COE specialty coffees. Front Street Coffee currently carries only two Brazilian beans in its stores, reflecting a deliberate trade-off in pursuit of flavor distinctiveness. This article will start with the producing regions, varieties, processing methods, and grading systems to give you a comprehensive view of Brazilian coffee, and will also include detailed information and brewing parameters for Front Street's two Brazilian coffees—Cerrado Red Bourbon and Queen's Farm Natural Yellow Bourbon—to help you understand where Brazilian coffee's stable sweetness and nutty, chocolatey notes come from. [more…]

When teaware crosses over into the coffee realm, is brewing coffee with a Yixing clay pot a quirky gimmick or a viable approach? Front Street Coffee put this question to the test. Yixing clay pots, known for their dual-pore structure and slow heat dissipation, are often thought to absorb off-flavors and soften bitterness, while coffee's immersion extraction happens to share the same logic as a French press. This article documents the full process of brewing medium-dark roasted Paradise Bird, washed, and honey-processed beans in a 150ml Yixing clay pot, covering parameters such as coffee-to-water ratio, water temperature, grind size, and steeping time, along with TDS and flavor descriptions. The results show a prominent sweetness and a clean cup, but a general lack of body and complexity. If you're also curious whether a teapot can replace a dripper, this is worth a read. [more…]

The grind size for pour-over coffee has always been a problem that puzzles many enthusiasts—the same description of "coarse sugar size" can be understood very differently by different people, and communication deviations directly lead to flavor differences. To solve this problem, Front Street Coffee adopted a "sieve calibration method," using a No. 20 sieve to quantify the grind level. This article will introduce the operating steps of this method in detail: how to choose a sieve, how to measure the pass-through rate, why it is recommended to control it at 80%, and when the grinder quality is poor, how to use brewing time and coffee bed state to assist in judging whether the grind is appropriate. No matter what grinder you use, this method can help you find a relatively stable grind reference. [more…]

The extraction principles of coffee and tea are essentially the same. Since an espresso machine can use pressure to extract a high-concentration coffee in a short time, can it also be used to extract a cup of "espresso tea"? With this question in mind, Front Street conducted an actual test: from the choice of grinding equipment, the adjustment of tea leaf dosage, to the control of the powder-to-water ratio and extraction time, the entire process of extracting tea with a coffee machine was fully recorded. Experiments have shown that a coffee machine can indeed extract tea with a concentration comparable to espresso, but many pitfalls were also encountered during the process—difficulties in cleaning the grinder, clogged portafilter baskets, and tea fragments seeping in and affecting the taste appeared one after another. This article will share the specific parameters and operating details, and give Front Street's practical advice: if you really want to try it, it is best to be mentally prepared, or add professional tea extraction tools. [more…]

Since its birth in the 1850s, the French press has become the top choice for many coffee enthusiasts starting out, thanks to its simple immersion extraction principle. However, making a delicious cup with it is not just about throwing in grounds and pouring water. James Hoffmann, author of The World Atlas of Coffee, once shared a highly acclaimed French press extraction method on YouTube, claiming results close to pour-over. This time, Front Street selected a medium-light roast Ethiopian Gesha Village Red Label bean, using 15g of coffee, a 1:16 coffee-to-water ratio, Ek43 grind setting 10.5, 100°C boiling water, and a 9-minute steep for a hands-on test, fully documenting the steps and flavor performance, and exploring the differences between French press and pour-over. If you also want to use your French press more professionally, this hands-on分享 is worth a read. [more…]

How should the coffee dose for pour-over be determined? The common Hario V60 01 dripper is recommended to hold 15–20 grams of coffee grounds, but when there aren't enough beans left or you only want to brew a single cup, using a large dripper with a small dose easily leads to a thin extraction. The 30-degree conical dripper launched by Japan's Tarachine (commonly known as the V30) is designed specifically for small doses of under 15 grams. After getting this transparent resin dripper, Front Street Coffee conducted brewing comparisons using Kenya, Blue Mountain, and three medium-roast beans, and found that the V30 can form a thicker coffee bed with a small dose, extending the extraction path, making the coffee flavor more intense and the mouthfeel fuller. This article documents in detail the filter paper folding method, brewing parameters, and the comparison results with the V60, and offers dose control suggestions, providing a reference for coffee enthusiasts who enjoy small-dose pour-over. [more…]

Pour-over coffee brewing methods are endless, and recently a technique called the "egg-beating brewing method," a stirred extraction approach, has made a comeback, reportedly able to significantly boost coffee's sweetness. Front Street, driven by curiosity, conducted three rounds of comparative experiments: starting with a light-to-medium roast natural-process bean without blooming, then switching beans and adjusting the coffee-to-water ratio, and finally reintroducing the blooming step, to verify this technique's actual effects and problems one by one. The article meticulously records each round's brewing parameters, techniques, and flavor performance, and analyzes how grind size, water temperature, coffee-to-water ratio, and blooming affect the final cup's taste. If you also want to try this novel stirred extraction, or are looking for brewing ideas to enhance sweetness, this hands-on record will provide concrete references. [more…]