Geisha coffee is widely recognized as the most noble variety in specialty coffee, and Panama's Elida Estate set a historic record of 94.15 points in the 2016 BOP competition with its exceptional Geisha beans. This article will guide you through the origins and flavor characteristics of Geisha, and provide an in-depth analysis of Elida Estate's ASD anaerobic slow-dry natural processing method—a technique pioneered by estate owner Mr. Wilford that, through sealed anaerobic fermentation and low-temperature slow drying, gives the coffee more pronounced floral notes and tropical fruit tones. Front Street Coffee will also share the specific brewing parameters and flavor profile of this Panama Elida Estate Geisha, making it a worthwhile read for every specialty coffee enthusiast. [more…]

Ethiopia, as the birthplace of coffee, has nurtured countless native varieties. Among them, the Yirgacheffe region stands apart as its own appellation thanks to its distinctive floral and citrus notes, making it a focal point of attention for coffee lovers worldwide. Within Yirgacheffe's Konga Cooperative, the Armetilalo processing station cultivates coffee cherries at 2,200 meters on red soil and employs an Anaerobic Slow Dry (ASD) process, undergoing 120 hours of sealed fermentation and 5 weeks of slow drying to create a full-flavored specialty coffee. These Armetilalo coffee beans won both the Ethiopian National Competition and the Africa TOH championship in 2019/2020, with a cupping score of 90.7. Front Street Coffee has selected these beans and presents them with a medium-light roast, bringing out layers of citrus, berry, cream, rose tea, and white grape. This article will take an in-depth look at their regional background, processing method, and brewing performance. [more…]

At the 2020 Taste of Harvest (TOH) Africa coffee competition, a natural coffee from the Armelelalu processing plant in the Konga region of Yirgacheffe, Ethiopia, scored 90.70 points to win the natural group championship and the overall championship. This bean uses heirloom varieties, is grown at an altitude of 2,200 meters, and undergoes anaerobic slow-dry natural processing, presenting rose floral notes, a fresh fruit-champagne quality, intense tropical fruit aromas, and a candied sweetness, with a round and smooth mouthfeel and a long-lasting sweet aftertaste. This article will guide you through the background of the TOH competition, detailed information about this champion bean, and why the Yirgacheffe region is hailed as synonymous with delicious coffee. [more…]

Geisha's journey from the wild forests of Ethiopia to the pinnacle of the world's specialty coffee has been a winding and legendary one. This article systematically traces Geisha's varietal origins and botanical characteristics, takes a deep dive into why Panama's Boquete region is able to nurture top-tier Geisha, and explains the logic behind Hacienda La Esmeralda's Red, Green, and Blue Tag grading system. It also covers how processing methods—natural, washed, and anaerobic fermentation slow-dry natural—affect flavor, and uses Esmeralda Red Tag Geisha as an example to provide complete pour-over brewing parameters such as grind setting, water temperature, and coffee-to-water ratio, helping coffee lovers gain a comprehensive understanding of this variety's unique value. [more…]

Geisha coffee is widely recognized as the noblest variety in specialty coffee, and Panama's Elida Estate set a historic record at the 2016 Best of Panama auction with a score of 94.15. From the perspective of Front Street Coffee, this article systematically reviews the origins and flavor characteristics of the Geisha variety, with a focus on the growing conditions at Elida Estate in the Boquete region of Panama, the ASD anaerobic slow-dry processing method, and the specific brewing parameters and flavor descriptions for both the washed and anaerobic natural Geisha, giving you a comprehensive understanding of the story and tasting points behind this legendary coffee bean. [more…]

Front Street Coffee takes you on an in-depth look at Hacienda La Esmeralda's anaerobic slow natural process. In 2019, the estate's natural coffee set a new record with 95.25 points, and its washed lot also scored 95 points, both reaching new highs. The Lamastus family uses an anaerobic slow-dry technique, fermenting the coffee beans in oxygen-free tanks for five days, then drying them slowly over five weeks, resulting in intense wine aromas and cocoa notes in the cup. This article not only reviews the details of this breakthrough processing method, but also analyzes its flavor impact on coffees of different altitudes and varieties, especially how Geisha retains its clean and elegant character at high altitudes. [more…]

From the wild forests of Ethiopia to the pinnacle of the world's specialty coffee, Geisha owes much of its fame to Panama's Boquete region. This article traces the varietal origins and spread of Geisha, analyzes its delicate growing characteristics and the reasons for its low yield, and focuses on Hacienda La Esmeralda's Red, Green, and Blue Label grading system, as well as the outstanding performance of Elida Estate. At the same time, the article also covers the effects of processing methods such as natural, washed, and anaerobic low-temperature slow-dry natural on flavor, and includes brewing parameters recommended by Front Street Coffee, offering coffee lovers a complete guide from origin to cup. [more…]

Located in Hafursa Village, about eight kilometers west of Yirgacheffe town, it sits on slopes between 1,900 and 2,200 meters above sea level. The local processing station has 12 standard fermentation tanks and more than 160 coded drying bed frames, allowing precise tracking of processing progress. High-altitude berries, after washing, present a distinct lemon note, bright and high-pitched with a delicate texture. However, traditional African beds dry too quickly under bright sun and ventilation, which is actually unfavorable for flavor development. This article explores in depth the agronomic principles of the semi-shaded slow drying method and how it extends the drying period to 16–30 days, thereby preserving more complete contents and bringing a completely different flavor and aftertaste experience. Front Street Coffee recommends this Hafursa slow-dried washed G1, which is worth savoring. [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…]

Geisha coffee's value has soared since Hacienda La Esmeralda in Panama won the BOP competition in 2004, and Elida Estate's Green Tip Geisha set a new BOP record in 2018 with 94.66 points, sweeping both the natural and washed categories. This Green Tip Geisha, grown at 1,900 meters and processed using anaerobic slow-dry natural methods, what does it actually taste like? Front Street Coffee has brought it into its everyday pour-over menu at 60 yuan a cup. This article begins with the history of Geisha's rise to fame, sorts out the difference between Green Tip and Bronze Tip, explains what makes the ASD processing method unique, and includes Front Street's complete tested pour-over parameters to help you brew a cup of Elida Geisha with clearly layered floral and fruity notes. [more…]

The natural process lots from Ethiopia's Hambela Estate have always been known for their intense fermented character, but this Lot 105 presents a completely different style. Front Street Coffee's Ethiopia Hambela Estate St. Lion single-farm slow-dried Lot 105 comes from the highlands of the Guji region at 2,150 meters above sea level, carefully cultivated by local smallholder farmers. This review used 500 grams of green beans for roasting tests, ultimately achieving a weight loss rate of 12.2%. After 24 hours, cupping revealed rich layers of plumeria sweetness, citrus, kiwi, strawberry, and blueberry, with sweetness approaching that of peach and honey. The article documents in detail the bean sorting, roasting curve, brewing parameters, and flavor changes, making it suitable reading for coffee enthusiasts who want to gain a deeper understanding of the characteristics of the Guji production region and new trends in natural processing. [more…]

Anaerobic fermentation processing is a green bean processing technology that has attracted much attention in the coffee industry in recent years. Since Sasa Sestic, the 2015 WBC champion, brought it to the forefront, it has quickly swept through the specialty coffee world. Inspired by red wine-making techniques, this processing method injects carbon dioxide into a sealed container to expel oxygen, creating an oxygen-free environment that allows precise control of the fermentation process, giving coffee beans higher sweetness and more unique flavor layers. As processing technologies continue to evolve, experimental methods such as anaerobic natural, anaerobic washed, and double anaerobic have emerged one after another, each presenting distinctly different flavor expressions. This article will systematically sort out the principles and origins of anaerobic fermentation, and analyze one by one the process steps and flavor characteristics of these three common anaerobic processing methods, while also explaining them in conjunction with specific Front Street Coffee bean offerings. [more…]

Anaerobic Fermentation has been very popular in the coffee world in recent years, mainly because Sasa Sestic, the Australian competitor who won the 2015 WBC, started this trend, and even in 2018 WB [more…]

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…]

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…]

In recent years, the coffee consumer market has continued to expand, and various novel green bean processing methods have emerged one after another. The industry habitually refers to them collectively as special processing methods. These techniques give coffee a more diverse and distinctly individual flavor expression, and also bring richer layers of mouthfeel, thus winning the favor of a large number of enthusiasts. At present, the more mainstream special processing methods include anaerobic washed or natural, enzyme washed, lactic acid fermentation, and barrel-aged processing, among others. Among them, anaerobic fermentation has especially high exposure. This trend can be traced back to 2015, when the WBC World Barista Championship winner that year, Sasa Sestic from Australia, brought anaerobic fermentation processing into the public eye, and discussions around the fermented feel of coffee have not ceased to this day. This article will sort out the development of anaerobic processing, analyze the specific process of anaerobic natural, and introduce anaerobic-processed coffee beans such as Santa Vini currently sold by Front Street. [more…]

Coffee enthusiasts' taste demands are becoming increasingly refined. The original terroir flavors produced by traditional washed and natural processing methods can no longer satisfy diverse expectations, and various specialty processing methods have emerged as a result. From the perspective of Front Street, this article systematically reviews the principles and classifications of anaerobic fermentation processing, compares the differences between natural fermentation and temperature-controlled fermentation, and provides an in-depth analysis of three processing workflows: anaerobic natural, anaerobic washed, and anaerobic enzyme-washed. At the same time, using Front Street Huayueye coffee beans from the Huila region of Colombia and Rose Valley coffee beans from Big Tree Estate as examples, it presents a complete approach from green bean processing to roasting curve selection, and then to pour-over parameter development, helping readers understand how specialty processing methods shape the flavors in the cup. [more…]

As coffee enthusiasts deepen their understanding of coffee, more and more people are paying attention to coffee bean processing methods. As a post-harvest processing method that has attracted much attention in recent years, anaerobic fermentation has brought more possibilities to coffee flavors. This article will analyze in detail the step-by-step processes and flavor and taste differences between anaerobic natural and anaerobic washed processing methods, and share Front Street Coffee's cupping and brewing experience. By comparing the characteristics of washed, natural, and anaerobic processing, it helps readers understand how different processing methods affect the final flavor of coffee. The two anaerobic natural beans, Huayueye and Monster Manor, launched by Front Street Coffee, will also be used as examples to demonstrate their unique charm. Whether you are a beginner or a seasoned enthusiast, you can gain practical references for purchasing and tasting. [more…]

Finca El Paraiso is a family-run coffee estate in Colombia's Cauca region, renowned for its innovative processing methods. Its anaerobic natural coffee beans, with their pronounced fermented character and sweetness, have become a favorite among many coffee enthusiasts. In this article, Front Street Coffee will take you deep into this bean's regional background, varietal characteristics, and processing techniques, and share a complete set of insights ranging from the roasting curve to cupping flavors, all the way to V60 brewing and SOE extraction. Whether you're a pour-over enthusiast or an espresso player, you'll find practical reference parameters and key operating points here. [more…]

While classic methods like washed, natural, and honey processing are already widely known, emerging techniques such as anaerobic, enzyme-assisted, and carbonic maceration are appearing one after another, opening up new possibilities for coffee flavor. These processing methods often give coffee beans a distinctive flavor profile, sparking curiosity about the principles and operations behind them. This article focuses on the key step of anaerobia, explaining how it builds upon traditional processing methods and, through the action of microorganisms in an oxygen-deprived environment, converts sugars into lactic acid, acetic acid, and aromatic compounds such as esters and aldehydes, thereby creating special experiences like yogurt-like acidity. The article also combines tasting impressions of the Front Street Coffee Deborah Estate Savage Series Anaerobic Natural Geisha to guide you from theory to practice in fully understanding the characteristics and processing flow of anaerobically fermented coffee beans. [more…]