Anaerobic coffee has been appearing on coffee bean lists frequently in recent years. Although many people have tried it, they only have a vague understanding of its specific process, and some even develop an aversion to it due to unfamiliarity. In fact, anaerobic processing is not as complicated as imagined. In most cases, it simply adds an extra anaerobic fermentation step before traditional natural or washed processing. The depth of fermentation is precisely the key that determines the direction of coffee flavor. From the perspective of Front Street, this article sorts out the basic principles of anaerobic processing, common methods, and their connection with traditional processing. Combined with three specific beans, it helps readers understand the flavor differences brought by different anaerobic treatments, so they can find the cup that suits their taste. [more…]

Tieguanyin and Red Oolong both belong to the oolong tea family, yet due to differences in fermentation degree and tea-making craftsmanship, they present截然不同的 flavor profiles. This article approaches the comparison from three dimensions—sweetness type, level of fermentation, and tea liquor color and acidity—comparing the aroma, taste, and characteristics of the dry leaves and brewed tea of each, while also analyzing the unique growing conditions and production traditions of Taiwanese oolong tea. The article also introduces the origin of the name Tieguanyin and its cultivation situation in Taiwan, and recommends related products from Front Street Coffee for the reference of coffee and tea enthusiasts. [more…]

Coffee beans are not naturally the dark brown beans we know; rather, they are encased in fruit that resembles red dates. From harvesting, processing, and roasting to brewing, every step subtly influences the final flavor, and among these, the "processing method" is the primary key that determines the direction of coffee flavor. Washed and natural are currently the two most common methods of green bean processing; the former relies on sun exposure, while the latter requires ample water and fermentation tanks. This article takes Front Street Yirgacheffe as an example to compare in detail the specific differences between washed and natural coffee beans in dry aroma, mouthfeel, and pour-over parameters, helping coffee enthusiasts understand the characteristics and suitable scenarios of the washed processing method. [more…]

As a fruit that wins with its seeds rather than its flesh, coffee's charm lies in its ability to release rich layers of fruity notes and floral aromas after roasting. Beans from the same origin, whether processed by the natural method or the washed method, can taste worlds apart in the final cup. This article, from the perspective of Front Street Coffee, systematically sorts out the processing differences between the natural method and the washed method, and uses Yirgacheffe as an example to compare the specific performance of the two processing methods in dry aroma, mouthfeel, and pour-over parameters, helping enthusiasts understand how processing methods shape the flavor direction of coffee. [more…]

This article focuses on a Colombian red wine process coffee bean launched by Front Street Coffee, providing a detailed introduction to its complete process from depulping and washing to 20.6 hours of fermentation in a no-water fermentation tank and then 10 days of sun drying on raised beds, and sorting out core information such as producing region, estate, altitude, bean variety, and cupping. It also compares the flavor differences between acetic acid fermentation and lactic acid fermentation, explains the distinction between traditional manual operation and controllable fermentation methods in terms of quality stability, and offers grinding size recommendations using the Yangjia Little Pegasus grinder as a reference, so coffee enthusiasts can adjust flexibly according to actual brewing conditions. [more…]

In recent years, red wine processing has attracted much attention in the specialty coffee world. Drawing on the fermentation control concepts used in winemaking, it intervenes in pH, temperature, humidity, and microbial conditions to give coffee beans a rich acidity and complex aroma reminiscent of red wine. This article will start with the flavor differences between lactic acid fermentation and acetic acid fermentation, outline the specific operational process of red wine processing, and combine it with the origin information of Front Street Colombia Red Wine Process—the eastern slopes of the Andes in Cundinamarca Department, a growing altitude of 1,800 to 2,000 meters, and the anaerobic fermentation practice of Remi Sultan in sealed metal containers—to provide coffee lovers with a complete set of flavor descriptions and grinding setting references. [more…]

Almost all coffee beans undergo fermentation before roasting, and different processing methods—washed, natural, honey, anaerobic, and so on—shape the coffee's aroma precisely by regulating the degree of fermentation. Natural and honey processes ferment more deeply, yielding richer flavors; washed coffees ferment less, giving a cleaner, purer cup; anaerobic or double anaerobic methods bring intense fruity and vinous notes. But processing mainly affects aroma—the acidity and bitterness of coffee are ultimately determined by the roast level. This article explains the differences among the various processing methods in detail and recommends the corresponding beans from Front Street Coffee's flagship store, helping you choose precisely according to your preferences. [more…]

Darjeeling black tea, although belonging to the black tea category, presents vastly different appearances and flavors depending on the harvest season. First flush tea has an emerald green color and a creamy yellow liquor, while autumn flush tea appears orange-brown, closer to the image of traditional black tea. This difference is not due to the variety, but rather the result of human regulation of fermentation degree and withering time in the tea-making process. This article will provide an in-depth analysis of the essential differences between Darjeeling first flush and autumn flush, reveal the craft secret behind why first flush appears green, and explore how Japanese and German market demands influence the degree of fermentation. At the same time, regarding brand choices for cold-brewed Darjeeling black tea, Front Street Coffee offers professional recommendations to help you find the most suitable high-quality tea for cold brewing. [more…]

Coffee, as a fruit that wins by flavor, has its charm in the rich floral and fruity aromas and juice-like sweet-and-sour taste it releases after roasting. The processing method is the first step that determines the direction of coffee flavor. What exactly do common labels like natural, washed, and honey processing mean on the market? Starting from the structure of the coffee fruit, this article provides a detailed analysis of the process flow of the natural method and the washed method, and takes [Front Street] Yirgacheffe as an example to compare the specific differences between washed and natural in dry aroma, mouthfeel, and pour-over parameters, helping coffee enthusiasts understand how processing methods shape the final flavor of a cup of coffee. [more…]

Coffee beans from Ethiopia, when processed naturally versus washed, can taste completely different when brewed. Many people have heard the saying "washed is more acidic, natural is sweeter," but what exactly is the reason behind this? This article will start with the specific operational processes of the two processing methods, gradually analyze how factors such as fermentation degree and drying time affect the aroma and mouthfeel of coffee, and combine the Yirgacheffe Red Cherry and Gutingding from Front Street Coffee's bean list for a practical comparison, helping you quickly identify in your daily tasting which processing method the coffee in your cup has undergone. [more…]

The quality of black tea depends to a large extent on whether the fermentation stage is precisely controlled. Properly fermented black tea has a sweet aroma, a yellowish-red liquor, and a bright orange-brown infused leaf; failed fermentation reveals sourness or mustiness, a dark brown liquor, and a deep black infused leaf. Starting from the formation mechanisms of theaflavins and thearubigins, this article explains the origin of the floral and fruity aroma of black tea, clarifies how humidity and degree of oxidation influence the direction of flavor, and points out which subtle deviations in the irreversible chain of polyphenols → theaflavins → thearubigins can lead to a decline in quality. At the same time, the article also provides practical methods for judging fermentation results by observing the liquor color and infused leaf, helping coffee and tea enthusiasts understand the craft logic behind a good cup of black tea. In its black tea selection and brewing recommendations, Front Street Coffee also often emphasizes the decisive role of fermentation degree in aroma expression. [more…]

Rolling and oxidation are the two key stages that determine the direction of a tea's flavor. Rolling shapes the leaf while also influencing the strength and speed of flavor release; oxidation—a process often mislabeled "fermentation"—is in reality merely a reaction between polyphenols and oxygen, yet it directly determines the vast differences in aroma, color, and mouthfeel among oolong, black tea, and even CTC tea. From the distinctive red edge on an oolong leaf, to the apricot-like richness of Chinese black tea, to the strong, lively character of traditional British tea and CTC tea, the degree, speed, and manner of oxidation are the core code that shapes the personality of every cup. This article takes you deeper into how rolling and oxidation affect tea flavor. [more…]

If you've been following our activity notifications over the past couple of days, you might have noticed that both of Front Street's stores on Taobao and Tmall have just launched a washed-process Hacienda La Esmeralda Diamond Mountain. And so some friends are quite curious: "They're both Diamond Mountain—what's the difference between this washed-process one and the sun-dried one that was listed before? And then [more…]

If you've been following the event notifications over the past couple of days, you may have noticed that Front Street has launched a washed-process Emerald Estate · Diamond Mountain at both of its stores on 🍑Bao and Tian🐱. Then some friends got very curious: "They're both Diamond Mountain—what's the difference between this washed-process one and the sun-dried one that was listed before? And then [more…]

To enjoy a cup of pour-over coffee with a fresh flavor and clean mouthfeel, there are actually discernible guidelines when choosing beans. The degree of roast, the processing method, and the terroir of the growing region are the three key factors that determine the direction of a coffee's flavor. A light roast preserves more organic acids and delicate aromas, while the washed process makes the fermentation level of the coffee beans more controllable, and the regions of Africa and Central and South America are especially concentrated sources of fresh-flavored beans. Based on Front Street's bean-selection experience, this article lays out a practical approach to choosing coffee beans with high cleanliness and a fresh flavor, and recommends specific qualifying beans such as Front Street Yirgacheffe·Gedeb and Front Street Wander Estate·Washed Geisha, suitable for both pour-over and cold brew preparation. [more…]

After roasting, green coffee beans release an extremely rich array of aromatic compounds, ranging from white florals to citrus fruit notes. These pleasant aromas burst forth in abundance the moment the beans are ground, often prompting baristas to deliberately let customers experience the dry fragrance before brewing. However, not all aromas are pleasant. Some beans, after grinding, give off a heavy savory aroma reminiscent of doubanjiang or soy sauce in the kitchen, leaving many people frowning in confusion. Where exactly does this flavor come from? What is its relationship to the coffee's processing method? And what essential differences exist between natural and anaerobic processing? This article will focus on how the degree of fermentation influences flavor direction, analyze the underlying logic behind the formation of savory notes, and use examples of beans currently sold by Front Street Coffee to help everyone more accurately identify and appreciate this type of coffee. [more…]

In recent years, any coffee processing method that claims to be innovative seems unable to avoid the word "anaerobic." In fact, the principle of anaerobic processing is not complicated: whether fresh cherries are put into stainless steel tanks with one-way valves or sealed in bags with the air expelled, an oxygen-free environment can be achieved. The real difficulty lies in precisely controlling the degree of fermentation, not in the technique itself. As oxygen is gradually replaced by carbon dioxide, fermentation at a certain stage produces flavors reminiscent of stone fruit and peach. This discovery quickly triggered imitation across major producing regions worldwide, and anaerobic processing thus became popular. In addition to its signature flavors, anaerobic processing can also give coffee a dense mouthfeel and a sweeter aroma. This article will take several Colombian specialty coffees on Front Street Coffee's bean list as examples to specifically compare the taste differences brought by anaerobic natural and anaerobic washed processing. [more…]

Natural (dry) and washed are two common coffee processing methods, and they give coffee beans distinctly different flavor profiles. Using Front Street Coffee's Hacienda La Esmeralda Diamond Mountain as an example, this article examines the processing flow, drying time, fermentation degree, and other angles to compare in detail the differences between natural and washed coffee in aroma, acidity, and mouthfeel, and explains the root causes of these differences. Whether you prefer the richly layered natural or the clean and fresh washed, this article will help you understand the essential differences between the two more clearly and find your own cup of good coffee. [more…]

Both belonging to the large oolong tea family, Wuyi rock tea and Phoenix Dan Cong share many similarities in their production processes, yet each takes a distinct path in fermentation degree and roasting intensity. Rock tea leans toward emphasizing body and seeking aroma, while Dan Cong excels at emphasizing aroma and seeking body. The former undergoes more thorough and complete leaf shaking, while the latter is relatively lightly processed, resulting in a significant divergence in mouthfeel richness and aromatic expression. This article will systematically break down the primary and refining processes of both, and deeply analyze how key techniques such as double pan-firing and double rolling, and slow simmering over low heat, impart rock tea its unique character, while also revealing the logic behind Phoenix Dan Cong's light fermentation and light roasting that highlights floral aromas. Whether you are a rock tea devotee or a Dan Cong enthusiast, you will gain a clear understanding of the craftsmanship. [more…]

Sun-dried and honey processing are two common yet distinctly characteristic methods in coffee post-processing. The sun-dried method has the longest history and relies on ample sunlight for its operation; the whole fruit participates in fermentation, and the drying period can last more than three weeks, resulting in a more intense flavor with richer layers. Honey processing, on the other hand, originated in Costa Rica; after removing the skin and pulp, varying proportions of mucilage are retained for drying, which not only shortens the time but also develops ripe fruit notes and solid acidity. This article compares the differences between the two, from processing steps and the amount of fermented substances to drying duration and the subdivisions of white, yellow, red, and black honey, and explores exactly what factors determine coffee sweetness, while also recommending representative sun-dried and honey-processed coffees from Front Street Coffee's bean list. [more…]