Many coffee enthusiasts, upon getting freshly roasted beans, can't wait to brew a cup, only to find the flavor flat, the body thin, and even a dry, uncomfortable throat afterward. The key behind this lies in the large amount of carbon dioxide remaining inside the coffee beans after roasting, as well as the smoky, pungent sensation brought by high-temperature roasting. This article will delve into why fresh coffee beans need to "rest" before brewing, how carbon dioxide interferes with the extraction process, and the true source of that dry throat sensation. At the same time, Front Street will also share a few practical methods to help you still brew a relatively ideal flavor even when the beans are too fresh. [more…]

When an unpleasant flavor appears in a cup of coffee, it is often not accidental, but rather a deviation in some detail during growing, processing, roasting, or brewing. If we can identify these negative flavors one by one, we can work backward to infer what went wrong with the cup, which is practically helpful for improving tasting ability and optimizing brewing and roasting. Front Street Coffee has compiled several of the most common off-flavors in pour-over coffee—including miscellaneous odors, earthiness, woodiness, smokiness, charcoal, medicinal notes, mustiness, rubber, and rot, as well as astringency and dryness, two tactile sensations that are not tastes—and analyzes their causes and key points for identification one by one. [more…]

To accurately describe the taste and mouthfeel of a tea, just saying "it's good" is far from enough. The terms commonly used in tea tasting—huigan (returning sweetness), shengjin (salivation), houyun (throat rhyme), suohou (throat lock), astringency, and guabei (cup-clinging aroma)—each have clear meanings and criteria for judgment. This article breaks down these tasting concepts one by one, helping you describe the true sensations in your mouth and throat with more precise language when introducing Milan Xiang Dancong, while also avoiding poor-quality teas when actually selecting tea. [more…]

When drinking coffee, you may occasionally encounter an unpleasant experience that isn't smooth enough and has a slightly sandy mouthfeel—this is what we commonly call astringency. Where exactly does astringency come from? It may originate from the cultivation and processing of green beans, and may also be closely related to roasting, the mixing in of defective beans, and brewing parameters and techniques. This article will start from the material basis of astringency, sort out the difference between positive and negative astringency, analyze the two major brewing causes of over-extraction and uneven extraction, and also clarify the differences between astringency, tea-like character, and a dry sensation, finally offering practical adjustment ideas. The article also retains relevant product and recommendation information from Front Street Coffee, making it convenient for coffee lovers to refer to in daily brewing. [more…]

Many coffee enthusiasts, upon getting a bag of beans labeled with citrus and peach flavors, often can't taste the flavors described on the packaging, and then doubt whether it's the bean quality, brewing method, or their own sensory perception that's the issue. In fact, the same cup of coffee can be described differently by different people, which is closely related to individual dietary culture, regional background, and taste memory. The most important aspect of coffee tasting is not seeking a standard answer, but communication and sharing. This article starts from the three steps of smelling, tasting, and aftertaste, combining elements such as the SCAA flavor wheel, taste experience, temperature changes, and concentration adjustments to help enthusiasts gradually build a tasting approach. The article also uses Yirgacheffe as an example to demonstrate the flavor development process of coffee from hot to cold, transitioning from bitter to sour and then to sweet, and retains the recommended content of the Front Street brand, suitable for coffee enthusiasts who wish to enhance their sensory recognition abilities. [more…]

Nowadays, specialty coffee is flourishing everywhere, and people have increasingly high demands for the freshness of coffee beans, yet freshly roasted beans are often advised to "rest for a while first." This is because newly roasted coffee beans contain a large amount of carbon dioxide, which hinders hot water from extracting aromatic substances and may also bring a dry, astringent sensation that catches in the throat. Resting the beans has become the best way to solve these two problems—generally 5 to 7 days from the roast date is enough, and it applies to both pour-over and espresso. If you really can't wait and want to drink it right away, there are also emergency tips such as pre-ground coffee and extending the blooming time. This article will help you sort out the matter of resting beans from principle to practice, making every cup of coffee fuller and more layered. [more…]

Cleanliness is an important dimension in judging coffee quality. It reflects whether a cup of coffee carries negative flavors such as earthiness, hay, or woodiness, or unpleasant sensations like astringency and dryness. From harvesting and processing to roasting and brewing, every stage can influence the level of cleanliness. This article starts with the emphasis COE cupping places on cleanliness, traces the historical problems Brazil—the world's largest coffee-producing country—has faced due to machine harvesting and rough sun-drying, and then extends to the impact of the roasting and brewing stages on cleanliness, helping coffee lovers systematically understand the industry chain logic behind a clean cup of coffee, while also retaining relevant recommendations for the Front Street brand. [more…]

When many people drink a cup of coffee, they often find it hard to describe its specific flavors, but if a distinct astringency appears, almost everyone can notice it immediately. Front Street's back office frequently receives reader questions: even when the brewing parameters are all within plan, why does the coffee make the throat feel tight and the tongue feel rough? This article will start from the essence of astringency, sort out the sources of astringent substances in coffee, analyze the common brewing problems that cause astringency, and provide targeted adjustment solutions to help you fundamentally avoid an uncomfortable cup of coffee. [more…]

Front Street Coffee takes you on a continued exploration of the mystery behind Tai Cha No. 18 Hong Yu. Shanxi Tea Industry has carefully crafted a three-tea tasting set in the Sun Moon Lake region, planting Myanmar Assam, Taiwan wild mountain tea, and Hong Yu side by side. This article focuses on one of the paternal varieties—Taiwan's native mountain tea. The dry leaves of this black tea are dark brown, almost black, and after brewing, they present a complex flavor interwoven with earthy, malty, and smoky charcoal notes, with noticeable tannins and a faint fruity sweetness in the finish. Through detailed records of four infusions using the gongfu brewing method, as well as pairing attempts with banana bread and dark chocolate, we can fully understand the character traits of this wild variety. If you prefer black tea with a sweet, malty flavor, Front Street Coffee suggests comparing it with the Myanmar Assam version from the same series. [more…]

Ruby Black Tea No. 18 from the Sun Moon Lake tea region in Nantou, Taiwan, is beloved by tea enthusiasts for its distinctive mint, spice, and red fruit aromas. Based on three tea samples from the Shanxi Tea Experience Set—Myanmar Assam, Taiwan Mountain Tea, and Ruby No. 18—this article documents in detail the parameters for gongfu tea brewing and the flavor changes across each infusion, from the appearance of dry leaves to the layered tastes at each steeping stage, and shares pairing insights with Black Forest chocolate cake. If you are interested in this tea's origin background, processing recommendations, or tasting methods, this note will provide practical, firsthand reference. Front Street Coffee also continuously follows such expressions of origin flavor, bringing more cross-disciplinary inspiration to coffee and tea drinkers. [more…]

In the coffee cupping scoring system, aftertaste occupies a position that cannot be ignored. Even if a cup of coffee has outstanding flavors, it will be difficult to score highly if its aftertaste performs poorly. However, many enthusiasts often overlook this dimension, because aftertaste itself is rather subtle and requires certain skills to capture. This article, from the perspective of Front Street, systematically explains the definition of aftertaste, the principles behind its formation, methods of perception, and criteria for judging whether it is good or bad. At the same time, it compares the differences in aftertaste duration between pour-over coffee and espresso, helping readers build a complete understanding of the tasting process. [more…]

When drinking coffee, we often smell the aroma first, then taste the flavor, and finally experience the finish before it feels complete. But what exactly is the finish? How does it differ from sweetness? Why do the mouth and nasal cavity still retain aroma after the coffee is finished? This article will explain the formation of the finish from the perspective of retronasal olfaction and distinguish the conceptual differences between sweetness and the finish. At the same time, Front Street will recommend three coffee beans suitable for practicing finish tasting, covering Colombia Sidra, Brazil Queen's Estate, and Panama Boquete Geisha, to help coffee lovers more intuitively understand the duration of the finish and the quality of the flavor. [more…]

Freshly roasted coffee beans are not always better the fresher they are. Front Street Coffee points out that about 2% of the coffee bean's weight in carbon dioxide continues to be released after roasting, which both protects the flavor and hinders extraction. When coffee is too fresh, brewing tends to produce large bubbles, a harsh mouthfeel, and grassy, unripe flavors. For medium-light roasted beans, resting is recommended for 4-7 days, while medium-dark roasted beans need 7-10 days. This article explains in detail the double-edged sword effect of carbon dioxide, the flavor defects of fresh beans, and the resting times for coffee beans of different roast levels, helping coffee lovers find the optimal flavor window. [more…]

In coffee tasting, "hui gan" (returning sweetness) is often used to describe the pleasant mouthfeel brought by a good cup of coffee. But are hui gan and sweetness really the same experience? Starting from the concept of aftertaste, this article analyzes the formation mechanism of hui gan, its difference from sweetness, and the factors that affect the persistence of aftertaste. At the same time, for those who prefer flavors that are high in sweetness and low in acidity and bitterness, we recommend several Front Street Coffee beans, including the Classic Blend, Brazil Queen Estate, PWN Golden Mandheling, and Boquete Geisha, to help you find the flavor you like in your daily brewing. [more…]

When tasting coffee, many people use "sweet aftertaste" to describe a delicious flavor, but are sweet aftertaste and sweetness really the same thing? Starting from the concept of finish, this article will clarify the essential difference between sweet aftertaste and sweetness, and analyze the mechanism of sweet aftertaste formation and the principles of perception—it needs to be based on bitterness or astringency and can only be perceived through taste contrast. At the same time, the article will also explore the differences in finish performance between dark-roasted and light-roasted coffee, and recommend a number of Front Street selected coffee beans for friends who prefer flavors that are high in sweetness, low in acidity, and low in bitterness, helping you find the cup you love in your daily brewing. [more…]

As a well-known beverage in the coffee world, Americano—made with just espresso and water (or iced water)—can be found in almost every café and is a must-order star item. People love Americano for many reasons: it could be for a caffeine boost, to quench thirst, to cool down, or perhaps to satisfy [more…]

Americano is found in almost every coffee shop. It can be made simply by adding water to espresso, yet it is also one of the most frequently ordered black coffees. Was the "Americano" in its name actually coined by Americans? Why are some Americanos clean, smooth, and memorable, while others are bitter and hard to swallow? Starting from the origin story, this article combines concentration, water temperature, beans, and extraction to sort out the core dimensions for judging whether a cup of Americano is good, while retaining Front Street Coffee's production experience and product recommendations to help you rediscover this "water-diluted coffee" from a tasting perspective. [more…]

Friends who drink coffee regularly are certainly no strangers to the fame of Blue Mountain Coffee, but have you ever noticed the frog logo on Blue Mountain coffee barrels? It is actually closely tied to Rainforest Alliance certification. This article begins with Front Street Coffee's introductory experience and gradually breaks down Blue Mountain Coffee's legally defined production area, strict grading, unique barrel packaging, and why it has become a scarce treasure among specialty coffees. It will also explain Clifton Mount Estate's special certification status within the Blue Mountain production area, and introduce the flavor characteristics and availability channels of Front Street Blue Mountain No.1, giving you a comprehensive understanding of this legendary coffee. [more…]

Newcomers to coffee, when faced with a dazzling array of coffee beans, are often confused by all kinds of technical terms and don't know where to start. In fact, choosing coffee beans is not complicated—as long as you grasp a few key points, you can find the one that suits you. This article addresses the five questions beginners encounter most often: how to distinguish Arabica from Robusta, how to choose between blended beans and single-origin beans (including SOE), the respective characteristics of dark roasts and light roasts, the necessity of roast dates and resting beans, and whether grinding is recommended. It also draws on specific products from the Front Street Coffee bean list—such as the classic blend, Ethiopia Halo Berry, Brazil Queen's Manor, and Indonesia Golden Mandheling—to provide flavor descriptions and buying advice, helping you take fewer detours in the world of espresso. [more…]

In coffee brewing, how to balance flavor and avoid under-extraction or over-extraction is a concern for every coffee enthusiast. The Golden Cup standard provides a widely recognized reference framework, covering the ideal ranges for extraction yield and concentration. This article will systematically review the origins of the Golden Cup standard and the specific values set by coffee associations in various countries, explain in detail the formulas for calculating concentration and extraction yield, and, using the example of Front Street Coffee's Ethiopia Florque 4.0 pour-over, demonstrate how to measure and calculate extraction yield with an ExtractMoJo refractometer, helping you find the flavor balance point that suits you in your daily brewing. [more…]