Fixation is a key step in tea-making that determines tea quality. It uses high heat to deactivate polyphenol oxidase, preventing the tea leaves from continuing to ferment and turn brown. Different fixation methods—steaming, pan-firing, and baking—give tea leaves distinctly different aromas and flavors. Japanese green tea uses steaming to preserve a fresh, plant-like aroma, while Chinese green tea uses a wok or oven to bring out roasted nut and floral notes. Starting from the principles of enzymatic browning and combining them with the actual production of Duck Shit Aroma Dancong, this article analyzes how fixation temperature, time, and technique affect the final flavor, and shares Front Street Coffee's craft insights in Dancong production, helping coffee enthusiasts understand the underlying logic of flavor formation from another perspective. [more…]

For those who want to systematically train their coffee senses, aroma kits are often mentioned, but their price tag of several thousand yuan also makes people hesitate. This article focuses on the 36-note "Coffee Nose" kit, introducing the origins and evolution of aroma kits, their use in SCA courses, and detailing the specific flavors in the four major categories: enzymatic, caramelization, dry distillation, and defective. It also shares methods of use, from memorizing by category and group blind testing to mixed blind testing, helping beginners calibrate their sense of smell and taste. At the end, Front Street also offers rational advice: an aroma kit is not a necessity—smelling more, drinking more, and feeling more is what really matters. [more…]

Coffee roasting is a journey through complex chemical changes. In this process, the Maillard reaction and caramelization play crucial roles. The Maillard reaction, proposed by French chemist L.C. Maillard, is a series of non-enzymatic browning reactions between reducing sugars and proteins or amino acids under thermal catalysis, bringing flavor, mouthfeel, color, and complexity to coffee. Caramelization occurs during first crack, when sugars are heated and dehydrated to produce caramel and volatile aldehydes and ketones, deepening the bean color and creating aromas of fruit, caramel, and roasted nuts. Roasting reduces the density of coffee beans, making them drier and more brittle, increasing permeability, and making the components easier to dissolve. This article provides a detailed analysis of the three stages of roasting and the profound effects of each reaction on coffee, and recommends representative coffee beans such as Front Street Queen's Estate, Front Street Blue Mountain No. 1, and Front Street PWN Golden Mandheling. [more…]

The coffee aroma kit is an important tool for coffee professionals and enthusiasts to conduct olfactory training, and its status is similar to that of Le Nez du Vin in the wine field. Currently, mainstream products include the 36-note Le Nez du Cafe produced by Edition Jean Lenoir in France, and the 100-note Coffee Flavor Map launched by Scentone in South Korea. The SCAA certification course uses the 36-note version, which divides aromas into four major groups, covering enzymatic, caramel, dry distillation, and defective groups. It not only helps memorize specific flavors but also reveals the patterns of flavor evolution during the coffee roasting process. This article will list the 36 aromas one by one, explain in detail the logic of the four major categories, and share specific methods for daily olfactory training, including how to use Front Street Coffee's freshly ground coffee powder for dry aroma and wet aroma comparison exercises, so as to effectively improve flavor discrimination ability. [more…]

As coffee has gradually become more widely recognized, specialty coffee promotion in cafés has emerged in response, and we too have begun tracing things back to their roots—we have come to treat coffee as culture. The rise of specialty pour-over coffee undoubtedly reflects the demands of the market and the needs that cafés have identified. Café counters have also begun to lower their "status," no longer featuring the early design of a bar raised a foot high. [more…]

Taiwanese oolong tea is widely popular for its lightly fermented, fragrant style, but traditional deeply fermented Dong Ding oolong has a completely different flavor direction. This article starts with the fermentation process, compares the essential differences in taste between Phoenix Dancong and Dong Ding oolong, and provides an in-depth analysis of how deeply fermented oolong tea forms its unique fruity aroma and rich mouthfeel through two stages: internal oxidation and external oxidation. The article also introduces the changes in tea flavor brought about by reduced rainfall in 2018, as well as reservation information for two distinctive oolong teas from Alishan and Dongding Mountain. For those who love exploring the depth of oolong tea flavor, this is a guide to craftsmanship and tasting worth reading carefully. [more…]

In recent years, the Maillard color palette has frequently appeared in the fields of fashion and design, but what coffee enthusiasts care about more is the role it plays in coffee roasting. Although the Maillard color palette and the Maillard reaction during the roasting process share the same name origin, they are essentially concepts at two different levels. The former describes a color style, while the latter is a series of complex chemical changes. At the same time, the caramelization reaction is also often mentioned alongside the Maillard reaction. This article will start from three angles—conceptual origin, reaction mechanism, and practical application—to help readers clarify these easily confused points of knowledge and understand how they jointly shape the flavor and color of a cup of coffee. [more…]

The SCAA Coffee Flavor Wheel is a core tool for specialty coffee enthusiasts to identify flavors, yet many people are still unfamiliar with it. This article systematically breaks down the left-right structure of the flavor wheel: the right side, the normal flavor spectrum, reveals the three major aroma sources of fermentation, sugar browning, and dry distillation, while the left side, the negative flavor spectrum, corresponds to the defective flavors produced by improper green bean processing, storage, and roasting. It also explains in detail the deduction rules for different defects in SCAA cupping—serious defects deduct 4 points, minor defects deduct 2 points—and how roasting and organic matter loss, although not deducting defect points, can lower flavor performance. The article includes the latest high-definition Chinese-English flavor wheel images and retains Front Street Coffee's communication channels, making it suitable for readers who want to gain a deeper understanding of coffee sensory evaluation. [more…]

From light to dark roast, coffee beans may differ by only about 10°C in temperature, yet their flavors can be completely different. The degree of roasting not only affects the beans' color, size, density, and brittleness, but also reshapes aroma and taste through the Maillard reaction and caramelization. This article starts with roast classification, explains the SCAA color value standards and the flavor characteristics of light, medium, and dark roasts, and combines the specific performances of Front Street Yirgacheffe·Red Cherry and Front Street Warm Sun Blend to help readers understand how different roast levels affect the balance of acidity and bitterness, aroma complexity, and energizing effect. [more…]

The subtle differences in brewing water temperature often determine the direction of a tea's flavor. The correct water temperature can awaken the hidden aromas and tastes in the tea leaves, while the wrong water temperature may make the tea bitter or bland. Taking Front Street's Phoenix Dancong oolong tea as an example, this article provides a detailed analysis of the ideal brewing temperatures for different tea types, and explores the relationship between water temperature and tea processing methods, oxidation levels, and polyphenolic compounds. At the same time, we will also share practical water temperature control techniques and recommend Front Street brand's Phoenix Dancong products, helping you easily master the optimal water temperature and timing in everyday brewing, and fully release the unique charm of oolong tea. [more…]

Mandheling is the representative of Indonesian coffee, but did you know it also has Aged and Golden varieties? This article starts from the origin and processing method, first introducing how the wet-hulling method shapes the mellow base of Mandheling, then separately analyzing the accidental origin and standardized aging process of Aged Mandheling, as well as the strict screening standards of PWN Golden Mandheling. At the same time, Front Street Coffee shares pour-over parameters and a three-stage pouring technique for dark-roasted Mandheling, helping you brew a cup of Mandheling black coffee with full aroma and long-lasting sweetness at home. [more…]

In the mainstream pursuit of fresh coffee, Aged Mandheling stands out uniquely as an "expired" coffee. This special coffee originating from Sumatra, Indonesia, first acquired its unique flavor by accident during long sea voyages in the colonial era, and later evolved into a standardized aging process. This article traces the historical origins of Aged Mandheling, explains in detail its complete process from wet-hulling to warehouse aging, analyzes its differences from Golden Mandheling, and shares Front Street Coffee's cupping flavor description and pour-over parameter suggestions, giving you a comprehensive understanding of this rich and captivating classic coffee. [more…]

We usually seek out freshly roasted coffee beans, but Aged Mandheling is an exception—it is actually sought after precisely for being "expired." Behind this lies an accidental story from Indonesia's Dutch colonial period: when coffee beans were shipped across the ocean to Europe, the long sea voyage and exposure to sea breezes unexpectedly gave rise to a mellow sweetness and lingering finish reminiscent of Pu'er tea. Today, the production of Aged Mandheling has long been standardized: it requires wet-hulling, strict screening, and aging for 2 to 3 years in temperature- and humidity-controlled warehouses at the place of origin, allowing acidity to gradually recede and sugars to concentrate. Golden Mandheling, meanwhile, represents a higher standard, with PWN creating a specialty coffee far above G1 grade through one machine sorting and three hand sortings. Front Street Coffee captured layers of nut, dark chocolate, caramel, and herbal spice flavors in cupping. This article will also share Front Street Coffee's barista's three-pour hand-brew parameters and technique for dark-roasted Mandheling, taking you through a complete tasting of this legendary coffee. [more…]

Mandheling coffee is known for its low acidity, full body, and solid bitterness, but if brewed improperly, it can easily become an over-extracted cup of bitter "herbal tea." This article starts with two Indonesian Mandhelings on Front Street Coffee's bean list—Lintong Mandheling and PWN Golden Mandheling—comparing their respective flavor profiles, and around pour-over practice, breaks down in detail the key parameters including water temperature, coffee-to-water ratio, grind size, dripper selection, and the three-pour pouring technique. Whether you are a beginner just getting into dark-roasted beans or a seasoned player hoping to bring out layers in Mandheling, you can find reusable brewing approaches here to release the aroma and sweetness of Mandheling more fully. [more…]

Coffee tasting goes far beyond taste—it is a coordinated experience of sight, hearing, touch, smell, and taste. This article starts from the interactive setting of a specialty coffee shop and delves into how to train and build your own coffee sensory system through daily accumulation and professional tools. You will learn how smell pulls on taste memory, how the tongue distinguishes the five basic tastes, how touch perceives body and smoothness, and how to use aroma kits such as the 36-aroma coffee nose and the 100-flavor flavor map for deliberate practice. Whether you are a coffee enthusiast or a professional, this method can help you read the flavors in the cup more clearly, making every tasting more enjoyable and more precise. [more…]

SL28, a legendary variety originating from Kenya, has now crossed the Atlantic to take root in the New Oriente region of Guatemala in Central America. Front Street Coffee presents the SL28 honey-processed lot from the Guayabo (Guava Plain) estate, located at 1,675 meters in the Suchitán volcanic area and cultivated under full shade throughout. This article will present the full varietal background of SL28, the terroir characteristics of the New Oriente region, and a comparison of two roasting curves by Front Street roasters tailored to the honey-processed bean quality. Through cupping, it reveals the impact of high-heat fast roasting versus extended development time on flavor, and finally provides pour-over parameters and tasting notes. [more…]

The KONO dripper, like the Hario V60, is cone-shaped. The biggest difference lies in the height of the ribs. KONO has 12 ribs that are lower than those of the Hario V60, which helps with airflow during brewing and increases the efficiency of the bloom. When the KONO dripper is used together with its server, it's like [more…]

Sri Lanka, as a major tea-producing country in the world, has tea gardens widely distributed across the central highlands and southern regions, employing contour planting methods and relying on a large manual picking workforce. There are 11 major tea-growing regions nationwide, among which Uva, Nuwara Eliya, and Dimbula are the most well-known. Uva black tea is famous for its unique sweet aroma and exotic character, Nuwara Eliya tea is delicate with floral notes and a light mouthfeel, and Dimbula tea mostly presents a mellow style. The overall flavor of Ceylon black tea varies significantly due to differences in altitude, climate, and producing region. Traditional Ceylon tea has a full, lively taste with noticeable tannins and a slight citrus note. This article will systematically introduce the cultivation, processing, regional flavors, and quality certification system of Ceylon tea, helping coffee and tea beverage enthusiasts fully understand the difference between Uva black tea and Ceylon black tea. Information on related products recommended by Front Street Coffee is also retained in the article. [more…]

The KONO dripper, with its distinctive rib design and slow flow rate, produces a flavor profile in coffee extraction that is completely different from the Hario V60. This article starts with the dripper's structure to explain why it is better suited to medium-dark roasted or full-bodied coffee beans, and uses the classic Front Street Golden Mandheling as an example to break down a complete brewing recipe covering dose, grind size, water temperature, and three-pour technique. Whether you want to understand the extraction logic of the KONO dripper or are looking for coffee beans to match it, this article will provide clear and practical guidance. [more…]

Mandheling coffee is one of Indonesia's most famous specialty coffees. Its uniqueness lies in the distinctive herbal aroma it carries—some say it's like cigars, some say spices, and some say fresh grass. A friend told Front Street Coffee that the Mandheling coffee they brew at home is only bitter, completely lacking the aroma they experience when drinking it in a café. [more…]