In coffee roasting, how can we ensure that every batch of beans achieves consistent quality? In addition to relying on cupping to evaluate flavor, we also use the RoAmi roast degree analyzer to record the Agtron caramelization value of the coffee beans, and retain historical data for reference. The RoAmi is essentially a colorimeter, with SCAA's Agtron algorithm embedded inside, capable of calculating the roast value by reading the color data of the bean surface or ground surface. This article will introduce how to use this instrument, the meaning of the Agtron value, and how to calculate the Roast Delta value from the bean color value and ground color value, and interpret the guiding significance of this value for roasting rhythm and flavor performance. [more…]

New-crop Geisha coffee beans are arriving one after another. Front Street Coffee recently compared the differences between Geisha Village's Gold Label, Red Label, and CHAKA. This time, we turn our attention to Panama's Hacienda La Esmeralda and discuss how its three grades—Red Label, Green Label, and Blue Label—are actually divided. Since Hacienda La Esmeralda rose to fame at the 2004 Panama Cup of Excellence, it has become a benchmark in the specialty coffee world thanks to the Geisha variety. Based on altitude, cup performance, and batch source, the estate divides its Geisha beans into auction-level Red Label, reserve-level Green Label, and select-level Blue Label. The three differ in flavor profile, processing method, and purchasing channels, and Front Street Coffee has also conducted separate pour-over comparisons for each. If you are choosing a Hacienda La Esmeralda Geisha, this summary may help you clarify your thinking. [more…]

In the field of coffee post-processing, honey processing is an important method that falls between washed and natural, and is widely used in Central American producing regions such as Costa Rica. Depending on the proportion of mucilage retained, the drying time, and the frequency of turning, honey processing can be further divided into several tiers, including black honey, red honey, and yellow honey. Using three beans—black honey, red honey, and yellow honey—as samples, this article conducts a systematic comparison from green bean appearance and roasting curves to cupping flavors, helping coffee enthusiasts understand the practical impact of different honey processing methods on the final flavor direction, while also providing a reference for everyday purchasing and brewing. [more…]

Front Street Coffee has previously compared the differences among coffees from various Kenyan regions using the same processing method; this time, we turn our attention to Costa Rica. Also using natural processing, how much will the flavors differ among coffees from three major regions—Tarrazú, the Western Valley, and the Central Valley? This article will compare three beans—from the Pirong Processing Plant, Genesis, and Black Soul—one by one, from bean background, green bean appearance, and roasting curves to cupping and pour-over performance. If you haven't yet tried Costa Rican specialty coffee, you might start with the classic Front Street Tarrazú washed Caturra and savor its soft aroma of sweet orange, nuts, and chocolate. [more…]

Front Street Coffee has recently added several Gesha Village lots, including Gold Label, Red Label, and Chaka. Many coffee enthusiasts are curious: both being Gesha blends, what exactly is the difference between Front Street Coffee Gesha Village · Chaka and Front Street Coffee Panama · Butterfly? This article compares the two across three dimensions: green bean information, roasting curves, and brewing parameters and flavor performance. Both beans are primarily Gesha variety, and both flavor profiles carry citrus fruit notes, but Chaka has higher body with prominent nutty flavors, while Butterfly is cleaner and clearer with obvious floral notes. If you are choosing a Gesha blend, this comparison may help you find the one that suits you better. [more…]

Geisha and Java—one is famed for its floral and fruity aromas, the other is called Geisha's cousin. What exactly sets them apart? Front Street Coffee recently got hold of a Bolivian Java, and took this opportunity to conduct a comprehensive comparison with a Panama Janson Estate Geisha. This article will dissect the similarities and differences between these two natural-process beans, from variety origins, green bean appearance, and roasting curves to cupping and pour-over flavors. Java first originated in the forests of Ethiopia, spread to Indonesia via Yemen, and later made its way to Central and South America; Geisha, on the other hand, set out from the Geisha forest in Ethiopia and ultimately rose to prominence at Hacienda La Esmeralda in Panama. Through actual brewing and tasting, Front Street found that the Janson Geisha has a cleaner mouthfeel, while the Bolivian Java boasts rich layers—each has its own strengths. [more…]

The Yirgacheffe region of Ethiopia is famous for its unique flavors, and among them the high-altitude washed beans from Kochere are highly favored by coffee lovers. But what exactly is the difference between G1 and G2 grades from the same region? This article starts with two washed Yirgacheffe coffees from Front Street Coffee, and combines ECX grading standards, green bean appearance, roasting curves, cupping, and pour-over performance to compare in detail the differences between G1 and G2 in defect rate, bean uniformity, aroma layering, and cup cleanliness, helping readers understand the specific impact of grade classification on flavor, with complete brewing parameters and flavor descriptions included. [more…]

Want to learn coffee roasting? Why is the first step not touching a roasting pan but practicing cupping? Starting from the apprenticeship experience of a seasoned roaster, this article sorts out the key role of cupping in green bean purchasing, roasting curve setting, and flavor judgment, while reviewing the shifts in China's roasting market over more than two decades and how the concept of specialty coffee has slowly seeped into consumers' awareness. The article also weaves in the philosophy of consistent output and real data on customer cultivation, and includes product recommendations from Front Street Coffee, making it suitable reading for every enthusiast who takes coffee beans seriously. [more…]

Yirgacheffe is Ethiopia's most iconic specialty coffee region, and coffee beans from its sub-region Kochere present strikingly different flavor profiles depending on the processing method. This article takes Front Street Coffee's two beans—Natural Red Cherry and Washed Kochere—as its starting point, systematically reviewing the background of the Kochere region, the operational mechanism and quality standards of the Red Cherry program, and comparing them across four dimensions: green bean appearance, roasting curves, cupping performance, and Clever Cup brewing, to help coffee enthusiasts understand the practical impact of natural and washed processing on flavor direction, as well as the grading logic behind Yirgacheffe G1. [more…]

The processing method of green coffee beans is one of the key stages that determines the direction of flavor. Even for coffees from the same Yirgacheffe region, the two processes of natural and washed give the beans completely different personalities. This article takes the Kochere region as its starting point and, combining two beans—Front Street Coffee Yirgacheffe Red Cherry Natural and Front Street Coffee Yirgacheffe Kochere Washed—systematically sorts out the differences between the two processing methods, from regional background, green bean appearance, and roasting curves to cupping and brewing performance. It also introduces the origin and operation of the Red Cherry Project, helping enthusiasts more clearly understand the impact of processing methods on flavor. [more…]

Colombia's Huila region is renowned as Colombia's national treasure of specialty coffee, and its balance is widely recognized in the industry. This article begins with the terroir of the region, outlines the nutty and cocoa flavor characteristics of Huila coffee, takes a deeper look at the cultivation traits of the Caturra variety and how altitude affects flavor, and combines Front Street Coffee's roasting and brewing practices to offer a complete set of pour-over parameter recommendations. Whether you are a beginner just getting into specialty coffee or an enthusiast hoping to refine your brewing technique, you will find practical reference points and inspiration here. [more…]

Judging the roast level of coffee beans by the naked eye alone, based on how light or dark the color appears, is clearly not rigorous enough. In the industry, a colorimeter is more commonly used to measure the degree of caramelization. This article will start with the measurement principle, explain the meaning of the Agtron value (color value), the difference between whole-bean color and ground-coffee color value, and how the RD value calculated from the difference between the two reflects roast uniformity. It will also explain how factors such as processing method affect the measurement results. Front Street Coffee will also present the commonly shared Agtron value roasting chart to help coffee enthusiasts more systematically understand the scientific basis behind roast assessment. [more…]

In the height of summer, a glass of ice-cold coffee always brings a uniquely refreshing experience. This time, Front Street Coffee has chosen the CHAKA sun-dried beans from Gesha Village and extracted them using four methods: hot pour-over, ice-fire brew, Japanese-style iced pour-over, and cold brew, to explore how the same beans express their flavors as temperature changes. Gesha Village CHAKA belongs to the estate's blended lot, composed of three varieties—Gori Gesha, Gesha 1931, and Illubabor. After a light roast, it presents a balanced profile of citrus, oolong tea, and cream. The different iced extraction methods bring out distinct layers of complexity, sweetness, and juiciness, making them well worth trying one by one for coffee enthusiasts. [more…]

Yirgacheffe Worka is a washed coffee that is quite friendly to beginners. It comes from the small town of Worka in southern Ethiopia, where more than seven hundred smallholder farmers cultivate the land together. The local high altitude, misty microclimate, and traditional washing process give it elegant floral aromas and bright acidity. This article will unfold step by step from the origin background, cooperative operations, washing process, roasting color value, to Front Street Coffee's brewing recipe and flavor performance, helping readers fully understand the unique qualities of this bean. [more…]

The Yirgacheffe region has long been famous for its bright floral and fruity notes, and Aricha is one of its most notable lots. This natural-process bean from the Adorsi processing station won first place in the natural category at the 2019 Africa TOH competition, with a cupping score as high as 91 points. Front Street Coffee uses a medium-light roast, striving to present its fermented wine aroma, ripe fruit sweetness, and creamy smooth finish. This article will guide you through Aricha's origin background, the history of the TOH competition, and share Front Street's roasting curve and V60 three-pour brewing parameters, helping you recreate this "fruit bomb"'s enchanting flavor at home. [more…]

Front Street Coffee has recently added a Kenyan SL28 washed bean from El Salvador's Olive Tree Estate, a bean closely linked to the 2017 WBC champion bean. Olive Tree Estate is located near a volcanic national park, at an altitude of 1,800 to 1,950 meters, with fertile volcanic soil and a rich ecological shade system, and has obtained organic and Rainforest Alliance certifications. The SL28 variety is known for its excellent sweetness, balance, and citrus and smoked plum notes. This article will introduce the estate's background, variety characteristics, washed processing flow, roasting curve analysis, and cupping flavor performance, along with Front Street's recommended pour-over parameters for coffee lovers' reference. [more…]

Ethiopian natural coffees have long been celebrated for their rich sweetness and vibrant fruity notes, and the Guji region has been particularly striking in the specialty coffee world in recent years. This article will provide a comprehensive analysis of the charm of Front Street natural Guji Huakui coffee, from terroir and processing methods to variety characteristics and roasting curves, along with detailed V60 pour-over parameters and flavor descriptions, guiding you through this bean's layered evolution from tropical fruit to caramel sweetness. Whether you are a beginner just getting into pour-over or a coffee enthusiast seeking an advanced flavor experience, you will find practical brewing references here. [more…]

Located in Costa Rica's Central Valley, on the slopes of Poás Volcano, Las Lajas Estate has become a name impossible to overlook on the country's coffee map, thanks to more than eighty years of family cultivation and a dedication to organic farming. The owning Chacón family is renowned for rigorous harvesting standards and innovative processing techniques, among which the natural batch "Alma Negra" (Black Soul) stands out among natural coffees with its dried-fruit and molasses-like profile. This article will give you a comprehensive understanding of the estate's geographical advantages, its organic certification journey, and the division of its honey and natural product lines, while also presenting in detail Front Street Coffee's roasting curve and cupping performance, providing coffee lovers with a complete tasting reference. [more…]

Yirgacheffe is a name impossible to avoid in the world of specialty coffee, and Aricha, as the 2019 African TOH Natural Group champion, pushes the floral and fruity character of this producing region to the extreme. This article begins with Aricha's origin background, heirloom varietal characteristics, and the prestige of the TOH competition, then moves on to Front Street Coffee's roasting approach and brewing recommendations, helping you see clearly why this bean is called a "fruit bomb." If you are looking for a daily staple that combines fermented winey aromatics, ripe fruit sweetness, and a juicy mouthfeel, you may want to follow Front Street Coffee's cupping notes and V60 three-pour method to fully extract Aricha's flavors together. [more…]

In the past, many people felt that Yunnan coffee was mediocre, which is related to the history of early extensive farming and its primary supply as raw material for instant coffee. Today, with the support of local governments and the push of the specialty coffee wave, Yunnan coffee's cultivation and post-processing levels have made great progress, and it has gradually established regional flavor labels such as plum, nuts, caramel, and tea-like notes. This article starts with the Front Street Coffee staple bean series, focusing on a washed Catimor from the Baoshan region, to clarify its variety background, green bean condition, roasting curve, and brewing plan, and to give its use in espresso blends, helping coffee lovers rediscover the true quality of Yunnan small-bean coffee. [more…]