The allure of coffee often begins with that intoxicating whiff of aroma. Many people, even if they don't drink coffee regularly, are drawn to the dry fragrance released the moment the beans are ground. At Front Street Coffee's stores, we frequently encounter customers like this—who prefer the dry aroma of coffee grounds and the wet aroma of the brewed liquid over the taste on the palate. So, what exactly makes up coffee's aroma? And what reactions occur during roasting? This article will explore the over thousand volatile compounds in coffee, categorized into the enzymatic, caramelization, dry distillation, and defect groups, to analyze the difference between dry and wet aromas, and discuss why coffee often smells better than it tastes, guiding you to rediscover the flavors in your cup from both olfactory and gustatory perspectives. [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…]

Many people are drawn in by the aroma of coffee, yet find that the flavor once it hits their palate is not as enchanting as it smells. This gap—"smells great, tastes bland"—is in fact closely tied to the more than 1,200 volatile aromatic compounds in coffee, the difference between dry and wet aromas after grinding, and the way retronasal olfaction perceives flavor. Starting from customer feedback at Front Street Coffee's shops, this article sorts through the four major aroma categories—enzymatic, caramelized, dry-distillation, and defective—and explains why a gap exists between coffee's aroma and its taste experience. Front Street then brews the 2025 new-crop natural Hambela Guji using 15 grams of grounds, a 1:15 coffee-to-water ratio, 91°C water, and a three-stage pouring method, and introduces the background of this champion bean from Ethiopia's Hambela, guiding you through the complete, true flavor of a cup of pour-over coffee. [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…]

Ethiopia, as the birthplace of coffee, has nurtured many stunning regions and flavors. Among them, the Guji region, after gaining independence from Sidamo in 2010, rose rapidly with champion beans such as Huakui and Huaxu, becoming a focal point in the specialty coffee world. The "Dorothy" recently launched by Front Street Coffee comes from the Anasora Estate in the Guji region, using an enzyme-washed processing method, presenting rich notes of white peach, jasmine, and oolong tea. This article will provide an in-depth analysis of this coffee's regional background, estate story, processing techniques, and brewing parameters, offering a comprehensive understanding of this peach oolong-flavored coffee that overturns the traditional Ethiopian impression. [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…]

In recent years, the specialty coffee world has continuously introduced new post-harvest processing methods, and enzyme anaerobic processing is one that has attracted considerable attention. This article starts with two approaches—Colombian anaerobic processing and wine barrel processing—to explain in detail their process flows, fermentation temperature control, and differences in yeast strains, and further explores how knowledge of beer yeast inspires coffee fermentation. The article also covers actual cases of 90+ global online auction lots, as well as Front Street Coffee's observations on post-harvest processing trends, helping coffee enthusiasts understand how different fermentation methods shape the diversity of coffee flavors. [more…]

Black Angel Estate is located on the Huehuetenango highlands in northern Guatemala, adjacent to the Mexican border, and has practiced natural farming principles since its founding in 1965. The estate uses coffee husks to make organic compost, and relies on volcanic limestone soil and a high-mountain irrigation system to create a unique growing environment. Fully ripe Catuai varietals can reach a sugar content of over 22 Brix under strict harvesting standards, and are meticulously produced through multiple processes including aerobic fermentation, tank fermentation, and slow drying. Front Street Coffee recommends this washed coffee, which presents a complex flavor profile of green tea, whiskey, elderflower, and nectarine preserve, with rich layers and a captivating fermented wine aroma. This article will provide a comprehensive analysis of Black Angel Estate's cultivation philosophy, processing techniques, and flavor characteristics. [more…]

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…]

In recent years, the processing method descriptions on coffee bean labels have become increasingly long, with various special processing methods, primarily anaerobic, emerging one after another. When many consumers drink anaerobically processed coffee with unique flavors, they wonder whether flavorings were added during roasting. This article sorts out the differences between anaerobic natural and anaerobic washed, explains why special processing methods are mostly led by well-funded estates, and cites the views of world champion Sasa to clarify the essential differences between flavored coffee and the addition of enzymes or yeast fermentation. It also answers questions such as whether anaerobic coffee is equivalent to flavored beans and whether it harms health, helping coffee lovers understand more transparently where the flavors in their cup come from. [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…]

For pour-over enthusiasts who prefer a rich, bold body and dislike pronounced acidity, the medium-dark roasted Mandheling series has always been a popular choice. As a representative of this series, Front Street Coffee PWN Golden Mandheling owes its flavor appeal largely to its roasting method. This article will start with the chemical principles of roasting, analyzing how caramelization and the Maillard reaction shape coffee flavor, explaining why a medium-dark roast can fully bring out the herbal, caramel, and pine notes of Golden Mandheling, and providing a specific roasting curve along with two brewing methods to help readers fully understand the flavor sources and extraction key points of this bean. [more…]

Lapsang Souchong and Zhenghe Souchong, as distinctive black teas from the Wuyi Mountain region, are crafted with exceptional ingenuity. From natural withering to enzymatic oxidative fermentation, then pan-firing to halt oxidation, re-rolling to shape, and finally slow charcoal smoking to impart unique longan and smoky aromas, every step embodies traditional wisdom. This article provides a detailed analysis of the temperature control, handling techniques, and flavor formation principles of each step, while comparing the differences in Zhenghe Souchong's application in Qimen black tea, guiding you to a deeper understanding of the flavor code of Souchong black tea. [more…]

In the world of specialty coffee, olfactory acuity often determines whether one can accurately capture the layers and details of a cup of coffee. Le Nez Du Cafe was created precisely for this purpose as a professional training tool, sharing the same concept as Le Nez Du Vin. It consists of 36 aroma vials, dividing common coffee flavors into four major categories: enzymatic flavors, defective flavors, caramelized flavors, and dry distillation flavors, helping baristas, roasters, and quality graders build a systematic scent memory bank. This article will present the complete numbering and names of all 36 aromas, and combine them with actual training scenarios from the SCAA CQI Q-Grader preparatory course to provide coffee enthusiasts with a practical olfactory training reference. Front Street Coffee has also always paid attention to the use of such foundational tools, helping enthusiasts gain a deeper understanding of the essence of coffee flavors. [more…]

Since its rise to fame in 2017, Huakui coffee has remained a star among Ethiopian specialty beans. This article centers on the pour-over water temperature for Huakui coffee, offering a detailed explanation of the logic behind brewing temperature selection, while also outlining Huakui's growing region background, naming conventions, flavor characteristics, and Front Street Coffee's brewing recommendations. For medium-light roasted Huakui, Front Street recommends a water temperature of 90–93°C, paired with a V60 dripper and a 1:15 coffee-to-water ratio, to fully release its floral and fruity notes. The article also introduces the batch performance of Huakui 6.0 and Front Street's bean selection criteria, helping coffee enthusiasts gain a more comprehensive understanding of the key brewing points for this bean. [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 the world of pour-over coffee, the balance between extraction yield and concentration has always been a focal point for enthusiasts. This time, Front Street Coffee brings a brewing approach called "high concentration, low extraction," aimed at suppressing bitterness as much as possible while allowing the coffee to present a satisfying layering of flavors. So, what exactly is high concentration, low extraction? How is it related to the Golden Cup extraction range? And how should the coffee-to-water ratio be adjusted to achieve it? Starting from Front Street's hands-on experience and combining it with a brewing case of Golden Mandheling, this article will break down in detail the principles, key operational points, and applicable scenarios of this method, helping you find an extraction direction in your daily pour-over that better suits your own taste. [more…]

Here it comes, here it comes. Today Front Street is going to share with you a brewing approach—high concentration, low extraction. This brewing method can minimize the bitterness of the coffee to the greatest extent, bringing the coffee to a nice flavor performance. What is high concentration, low extraction? Front Street will give a brief introduction here; it all still has to start from this "Golden Cup extraction [more…]

With more and more plant-based milk options available today, oat milk often sparks discussion because of its relatively high price: what exactly makes it so expensive—is it a marketing premium or the result of underlying costs? This article begins with the production process of oat milk, breaking down the complete flow of how it is made from oats and water through steps such as enzymatic hydrolysis and filtration, and compares the differences between almond milk and dairy milk in nutrition, taste, and price. At the same time, by examining supply and demand dynamics and shelf-life constraints, it explains why oat milk sells for more in cities, and what more budget-friendly alternatives exist, including feasible methods for making oat milk at home. The article also retains recommended channels for specialty coffee beans for coffee enthusiasts to reference. [more…]

The flavors of coffee are endlessly varied. Beyond variety and roasting, the fermentation process during green coffee processing plays a decisive role. The three common methods—natural, washed, and honey—each rely on different fermentation environments and microbial activity to shape distinctly different sweetness, acidity, and body. This article begins with the scientific principles of fermentation, systematically sorts out the differences between dry and wet fermentation, explains in detail the key points of natural, honey, washed, and Kenyan-style and Ethiopian-style washed processing, and includes Front Street Coffee's recommendations and buying advice to help you understand more clearly where the flavors in your cup come from. [more…]