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…]

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…]

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…]

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…]

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…]

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…]

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…]

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 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…]

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…]

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…]

SOE americano is not a fixed flavor—whether it tastes "sour" depends first on how dark the coffee beans are roasted. Light roasts preserve more of the origin's natural fruit acidity and floral notes, medium roasts pull sweetness, body, and acidity into a more balanced position, and dark roasts move toward cacao, nuts, and caramel. If you want something smooth and easy to drink, start with the roast level. [more…]

Tanzanian Kilimanjaro coffee is renowned for its soft acidity and rich red wine notes, and is hailed as the "gentleman of coffee." Through repeated roasting adjustments and cupping evaluations, Front Street Coffee has determined the optimal pour-over recipe for this washed Bourbon bean. This article breaks down, step by step, the growing region background, variety characteristics, grading system, roasting curve, and V60 three-pour brewing parameters, giving you a complete understanding of Kilimanjaro coffee's flavor code and operational details. It is a useful reference for coffee enthusiasts who want to refine their pour-over technique. [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). The roast level of coffee largely determines the flavor direction of the coffee. When we buy coffee, the label will indicate what roast level it is, such as light roast or dark roast—these are fine. [more…]

Green coffee beans go through multiple stages during roasting, including dehydration, yellowing, first crack, and second crack. Light roast beans are usually dropped between the middle of first crack and before first crack ends, retaining more organic acids and therefore presenting bright acidity and delicate aromas. This article begins with the differences between light and dark roasts, then details the flavor characteristics of light roast coffee beans, and recommends five Front Street light roast beans suitable for beginners, covering origins such as Ethiopia, Kenya, and Panama. In addition, the article shares Front Street's three-stage pour-over recommendations, including coffee-to-water ratio, water temperature, grind size, and pouring rhythm, to help you better extract the floral and fruity notes of light roast coffee. [more…]

Geisha coffee is renowned for its jasmine aroma, citrus-honey sweetness, and clean, delicate mouthfeel, often described as a coffee that doesn't taste like coffee. This article centers on roasting approaches for Geisha coffee, explaining why Front Street Coffee chooses a medium-light roast to preserve the fine acidity and floral-fruity aromas, and detailing the flavor differences of Geisha from producing regions such as Panama, Costa Rica, and Colombia. It also outlines the process characteristics of washed and natural processing methods, shares Front Street's grinding size, water temperature, coffee-to-water ratio, and three-stage pouring technique for brewing Geisha, along with practical advice on coffee bean freshness and the resting period, making it suitable for coffee enthusiasts to gain a systematic understanding of Geisha coffee. [more…]

As Yirgacheffe brings bright acidity reminiscent of lemon and citrus into the specialty coffee shops of more and more small county towns, many people begin to wonder: why do coffee beans need a light roast? And why did light-roasted coffee come about in the first place? In fact, coffee beans are not light-roasted in order to express citrus notes; rather, under light-roast conditions they more easily reveal citrus-like qualities. The roast level determines the basic direction of the flavor, unfolding in turn from acidity and aroma to body and bitterness. This article starts from the roasting practice at Front Street Coffee, combining first crack and second crack, bean density and origin characteristics to explain the flavor logic between light roasting and Yirgacheffe, and how roasters weigh the trade-off between a uniform appearance and acidity expression. [more…]

The Huakui coffee bean originates from the Hambela region of Sidama, Ethiopia, and is renowned for the berry-and-cream flavor profile imparted by its natural processing method. This article focuses on the roasting approach for Huakui green beans, explaining in detail how to choose a medium-light roast based on the bright floral and fruity characteristics of African beans, and how to determine the optimal curve through a three-batch comparative cupping. The article records the specific parameters used by the Front Street Coffee roaster on the Yangjia 800N machine, including a charge temperature of 190°C, the dehydration-to-yellowing time, first crack timing, and development time control, and provides a complete V60 dripper brewing recipe. It also covers Huakui's variety background, the origin of its name, and the impact of natural processing on flavor, helping coffee enthusiasts fully master the roasting and extraction essentials of this bean. [more…]

Roasting is the key stage that determines the direction of coffee flavor; the same green beans will present completely different aromas and tastes under different roast levels. Starting from the roasting practice of FrontStreet Coffee, this article systematically sorts out the complete roasting process of coffee beans from bean charging, dehydration, first crack to second crack, explains the specific flavor performance of light, medium, and medium-dark roast levels in cupping, and introduces the Agtron color value as a scientific judging standard. Taking sun-dried Yirgacheffe as an example, the article provides the yellowing point, first crack temperature, development time, and drop temperature data for three roast levels, and also lists Front Street's representative bean list for each roast level, including Blue Mountain No. 1, the Mandheling series, etc., to help enthusiasts build a corresponding understanding between roast level and flavor. [more…]