In coffee roasting, "first crack" is not only an important auditory milestone, but also directly relates to the final flavor presentation in the cup. This article uses Front Street Coffee's Costa Rica Natural Black Soul as a sample, conducting comparative experiments through three roasting curves with different first crack times, to deeply explore the specific effects of the length of the drying phase on bean expansion, the degree of the Maillard reaction, and cupping flavor. From 7 minutes 30 seconds to 8 minutes 30 seconds, subtle differences in first crack timing bring significant changes in fruit acidity, sweetness, body, and complexity. This article will break down each curve's roasting parameters, bean surface condition, and brewing performance one by one, helping roasting enthusiasts understand the core logic of first crack time control. [more…]

For coffee roasters pursuing consistent output and flavor reproducibility, Artisan is a rare open-source tool. It can connect to temperature recorders or PID controllers, collect bean temperature and air temperature data in real time during the roasting process, automatically generate visualized curves, and help judge the trends of the drying, Maillard, and development phases. This article compiles Artisan's core functions, compatible device list, export and reporting methods, and includes software screenshots and a version update summary. Whether you use Mac, Windows, or Linux, you can use it to optimize your roasting rhythm, making the flavor performance of every batch of Front Street Coffee beans more controllable and more reproducible. [more…]

The roasting process of every coffee bean requires detailed recording of curve data, including the turning point, heat adjustments, temperature changes, and first crack time. These data are not only the basis for reproducing flavor, but also an important reference for roasters to understand the characteristics of the beans. This article will break down the key nodes in the roasting curve one by one—from the preheating drum temperature setting, the coordination of heat and airflow, to the turning point, yellowing point, Maillard reaction, caramelization reaction, and then to the determination of first crack and the calculation of the rate of rise—to help you build a clear logic for reading roasting curves. At the end, using [Front Street Jamaica Blue Mountain] as an example, it shows how to design the roasting rhythm according to the nature of the beans, so that acidity, body, and aroma reach a delicate balance. [more…]

In the espresso extraction process, the tamper plays a pivotal role. Faced with the dazzling array of tampers on the market, from flat to ridged, from American curve to European curve, how exactly should one choose? This article has specially invited senior coffee roaster Huang Jijun to share the flavor differences presented by different tamping surfaces, and to provide practical purchasing advice for beginners and advanced players. At the same time, the article also compiles a number of classic tamper collections, combined with recommendations from Front Street Coffee, to help you find the one tamper that suits you best. [more…]

Yirgacheffe is renowned for its vibrant floral and fruity flavors, but to fully unlock the potential of these beans, the design of the roasting curve is crucial. Based on actual roasting cases of Front Street Yirgacheffe, this article systematically outlines the core logic behind roasting curve design—how to determine the optimal drop time through hypothesis, sampling, and cupping, and analyzes the key operational points of a slow, light roast in conjunction with green bean characteristics. The article also provides a detailed record of the complete roasting process, from charge temperature and heat adjustments to the timing of first crack, as well as parameter corrections and flavor comparisons across two rounds of V60 brewing, offering coffee enthusiasts a Yirgacheffe roasting and brewing guide that combines theoretical foundations with practical reference. [more…]

Located in Central America, Honduras has become an important origin for specialty coffee thanks to its mild tropical climate and abundant rainfall. This article focuses on the Honduras Moka Estate Lychee Brandy coffee beans launched by Front Street Coffee, offering a detailed introduction to the terroir conditions of Marcala in its origin, the characteristics of the Caturra and Catuai varieties, and the unique processing method that combines refined washing with brandy barrel fermentation. By comparing the cupping and pour-over performance of two roasting curves, it provides an in-depth analysis of the layered changes in this bean's flavors—ranging from floral notes, berries, and lychee to brandy aroma and dark chocolate—offering coffee enthusiasts a complete reference for roasting and brewing. [more…]

Honduras, as an important coffee-producing country in Central America, has secured a place in the global specialty coffee market thanks to its unique mountain climate and continuously improving processing techniques. In this issue, Front Street Coffee focuses on the Lychee Orchid coffee beans from the Masaguara Mocha Estate. These beans are processed using a refined washed method combined with low-temperature fermentation in brandy barrels, presenting soft lychee sweetness, honey notes, and the complex aroma of brandy and oak barrels. The article will systematically introduce the distribution of coffee-producing regions in Honduras, variety characteristics, and the principles of barrel fermentation, and through a comparison of two roasting curves by Front Street roasters, deeply analyze the specific effects of different development times on coffee flavor performance, providing coffee enthusiasts with practical brewing and tasting references. [more…]

The Yirgacheffe region in Ethiopia is renowned for its bright fruity acidity and delicate floral aromas, and its Gedeb Cooperative stands out even further with a clean tea-like body and elegant citrus notes. Front Street Coffee sourced this Yirgacheffe Gedeb washed G1 coffee bean, grown at 1,900–2,300 meters, of the heirloom small-bean variety, with a defect rate controlled to within 3 beans per 300 grams. To find the optimal roasting approach, Front Street tested three light-roast profiles on a Yangjia 800N roaster, then verified the flavor performance through cupping and multiple brewing sessions. This article presents the full process—from green bean information, regional background, and grading standards to roasting curve comparisons, cupping records, and V60 brewing parameters—to help coffee enthusiasts understand the flavor differences and brewing key points of light-roasted beans at the same roast level. [more…]

Driven by the third wave of coffee, barrel fermentation processing has become a highly anticipated innovative craft in recent years. Front Street Coffee's Honduras Sherry and Lychee Orchid barrel-fermented beans each impart unique wine aromas and layers to the coffee through whiskey barrels and brandy barrels, respectively. This article begins with the geography and varieties of Honduras's six major producing regions, outlines the development of its coffee industry and grading system, focuses on analyzing the principles of barrel fermentation and flavor differences, and provides a detailed record of the roasting curve comparison of Front Street's two beans, cupping performance, and flavor presentation in three brewing methods—V60, KONO, and Japanese-style iced pour-over—offering objective data references for coffee enthusiasts. [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…]

In the process of learning coffee roasting, there is often a gap between theoretical understanding and hands-on practice. This article focuses on judging two key milestones—the yellowing point and first crack—analyzing one by one the visual and auditory misjudgments that beginners easily make. It also offers temperature and aroma as auxiliary indicators for the yellowing point, and explains how misjudging first crack can lead to grassy, underdeveloped flavors and astringency in coffee. Drawing on Front Street's roasting course philosophy, the article also reminds readers not to mechanically copy curve data, but to understand the logic behind the data, so as to find a roasting path that truly suits them. [more…]

Roasting is the core stage that determines the direction of coffee flavor. Green beans must be roasted before they can be consumed, and the degree of roasting often influences eighty percent of the final taste performance. This article takes Front Street Jamaican Blue Mountain coffee as an example, starting from key nodes such as charge temperature, heat adjustment, turning point, yellowing point, first crack, and rate of rise, to analyze in detail the design approach of the roasting curve for Blue Mountain No. 1 coffee beans. The article also combines the specific characteristics of Blue Mountain coffee, such as screen size above 17, defect rate below 3%, and moisture content of about 13%, to explain why it is suitable to adopt a steadily rising roasting method, and provides a complete operation record from charging at 170°C to dropping at 201.3°C, helping coffee enthusiasts understand how to coordinate heat and airflow to make Blue Mountain coffee present a cleaner and more layered flavor. [more…]

Front Street Coffee recently acquired a batch of blueberry coffee beans from Costa Rica's Las Rocas Estate; the green beans exude an intense sweet blueberry aroma and rose floral notes. To fully reveal the flavor potential of these beans, the roaster team designed three different roasting profiles and cupped them one by one, striving to find the most balanced roasting plan that best expresses the terroir. This article will guide you through the terroir background of the Brunca region, the varietal composition and anaerobic heavy honey processing of Las Rocas Estate, and present in detail the roasting parameters of the three profiles and the differences in cup flavors, helping coffee enthusiasts gain a deeper understanding of the charm of these beans. [more…]

The two major schools of coffee roasting—Japanese slow roasting and Nordic fast roasting—reflect fundamentally different philosophies of tasting: the Japanese value a rich, clean mouthfeel, while the Nordics prefer bright, elevated acidity and aroma. This time, Front Street Coffee selected the sun-dried Yirgacheffe Worka Red Cherry and, through two actual roasting curves, compares the differences between slow roasting and fast roasting one by one—from airflow and heat adjustment, the pace of temperature rise, to the appearance of the roasted beans and cupping performance. Slow roasting is like braising pork until tender, letting heat penetrate evenly; it results in a high degree of development, rounded sweetness, and a short resting period. Fast roasting emphasizes the efficiency of hot air and pursues bright floral and fruity aromas, but it demands stricter quality from the green beans. The article also introduces the origin background of the Worka cooperative and the division of labor at the Banko processing station, and, combining green bean grade, appearance consistency, and actual cupping results, sorts out the applicable scenarios and flavor orientations of the two roasting methods for coffee lovers' reference. [more…]

The naming convention of Huakui coffee beans is truly unique in the specialty coffee world, as it hits the market with a new version number every year. Behind this lies not only the evolution of producing regions and processing methods, but also the influence of climate and processing details on flavor. This article will trace the complete lineage of Huakui from the Hambela region's natural G1 to the version-suffixed editions, analyze the flavor differences across batches from different years, and share Front Street Coffee's practical recommendations for roasting and brewing. This will help coffee enthusiasts gain a more systematic understanding of this bean's origins and development, as well as how to highlight its signature tropical fruit notes by adjusting the roasting curve. [more…]

Limu is a low-key yet noteworthy presence among Ethiopia's eight major coffee regions. It is primarily washed-processed, with a milder flavor profile than Sidamo, often carrying citrus and grassy aromas. This article provides a complete overview of the regional background of Limu washed G2, the washed processing workflow, and the characteristics of the Heirloom native variety, along with the practical roast curve on a Yangjia 600g semi-direct-fire roaster and V60 pour-over parameters. From a charge temperature of 200°C to first crack at 8 minutes 33 seconds and drop at 194.6°C, every adjustment of gas and airflow is recorded. It is suitable for coffee enthusiasts who want to gain a deeper understanding of Ethiopia's lesser-known regions, and also offers a reusable approach for brewing Limu beans in daily practice. [more…]

The Yirgacheffe region of Ethiopia is famous for its bright fruit acidity and elegant floral aromas, and the Gedeb Cooperative, as a specialty micro-region that split off from Worka, produces washed G1 coffee beans that combine citrus acidity with a black tea finish. Using this coffee as an example, Front Street Coffee presents the complete journey of a light-roasted Yirgacheffe from green bean to cup, covering the region's background, variety and grade, roast profile design, cupping comparisons, V60 brewing parameters, and flavor performance at different water temperatures. This article is suited for coffee enthusiasts who wish to gain a deeper understanding of the details of Ethiopian coffee origins and the logic of light-roast brewing. [more…]

The Huila Department of Colombia is renowned for its refined acidity and berry-like sweetness, while the Huayueye microlot bean further presents a complex profile of strawberry jam, liqueur-filled chocolate, and creamy fermentation through its anaerobic natural process. In this article, Front Street Coffee begins with Colombian coffee culture, reviewing the terroir of the Huila growing region, the characteristics of the Caturra variety, and the low-temperature slow fermentation processing at the Gading Farm, and also discloses the roasting curve of the Yangjia Pegasus 800N, the cupping results, and the V60 staged brewing parameters, providing coffee enthusiasts with a complete reference for tasting and hands-on practice. [more…]

Huakui coffee beans originate from Hambela in the Sidama region of Ethiopia and are known for their berry cream and tropical fruit flavors. The degree of roast directly determines the direction of their flavor: a medium-light roast preserves bright acidity and floral-fruity aromas, while a medium-dark roast brings caramel and bitterness, masking the character of the origin. Front Street Coffee's roasters screened through cupping with three curves and ultimately determined the optimal roasting plan for Huakui, with the key points being the control of dehydration and yellowing, first crack timing, and development pace. This article will provide a complete analysis of Huakui's origin background, variety characteristics, and natural processing method, and will disclose Front Street Coffee's roasting curve data and V60 brewing parameters, helping coffee enthusiasts understand how to adjust the charge temperature and development time to release Huakui's layering and sweetness. [more…]

Cuban Crystal Mountain coffee, often called "Cuban Blue Mountain" on the market, is regarded as a top-tier coffee for its balanced, mellow taste, and is frequently mentioned alongside Jamaican Blue Mountain. This article starts with the growing environment and bean characteristics, then explains in detail why it suits medium-temperature roasting, and fully records the roasting data and cupping impressions of a City Roast. It also includes Front Street Coffee's recommendation for this bean and related information, helping coffee lovers gain a comprehensive understanding of the unique charm of Cuban Blue Mountain. [more…]