For more specialty coffee knowledge, please follow our WeChat official account: Front Street Coffee (FrontStreet Coffee). Many friends, while drinking coffee at Front Street, ask our baristas, "What is Yirgacheffe G1 and Yirgacheffe G2?" "What is Kenya AA, AB?" What is Guate... [more…]

Jamaican Blue Mountain coffee is world-renowned for its unique flavor and strict controls. Jamaican law stipulates that only coffee beans grown in the Blue Mountain region may bear the name "Blue Mountain." High-grade Blue Mountain coffee is divided into three grades—No. 1, No. 2, and No. 3—corresponding respectively to screen size standards of 17–18 mesh and above, 16 mesh, and 15 mesh. The green beans of all three grades must be packed into wooden barrels for export, with the barrel bearing the estate name, importer's abbreviation, and batch information, along with a government-certified green certificate of origin. Understanding these grades and export regulations helps coffee enthusiasts verify authenticity and make informed purchases of genuine Blue Mountain coffee. Front Street Coffee recommends that consumers pay attention to the roast level and packaging format to judge the true quality of the Blue Mountain coffee in their hands. [more…]

埃塞俄比亚作为咖啡的发源地，其咖啡豆分级体系在非洲产国中最为完善，却也让许多爱好者感到困惑。以耶加雪菲为例，Grade-1和Grade-2究竟意味着什么？为什么同样标注耶加雪菲G2的两批豆子品质可能天差地别？本文将深入解析埃塞俄比亚独特的产地命名规则、水洗与日晒豆的等级差异、Parchment Coffee拍卖分级制度，以及出口商混合拼配如何影响最终品质。文中特别涉及前街耶加雪菲Grade-2等实际案例，帮助你真正读懂埃塞豆的等级密码。 [more…]

Friends who frequently buy coffee beans will surely notice that most coffee bean names are followed by English suffixes such as AA and AB. This is especially true for Kenyan coffee beans—Kenya AA, Kenya AB, Kenya PB, Kenya AA+, Top, and so on. "So what do these suffixes mean? [more…]

We know that the grading method of coffee beans usually depends on the actual situation of the growing country, such as being divided according to the size of the coffee beans, like Kenyan coffee; being divided according to the altitude, like Blue Mo [more…]

We know that coffee bean grading methods are usually based on the actual conditions of the growing country. Some are graded by bean size, such as Kenyan coffee; some by altitude, such as Blue Mountain coffee; and some by defect rate, such as Ethiopian coffee. As the gene pool of Arabica, Ethiopia has a wide variety of coffee varieties. [more…]

Colombian coffee occupies an important place in the world of specialty coffee, and its green bean grading system is based primarily on defect rates and bean screen size. When buying Colombian coffee, what exactly do the words "Supremo" and "Excelso" commonly seen on burlap sacks mean? This article will systematically sort out the grading rules for Colombian green coffee beans from multiple angles, including export standards, defect scoring, and screen-size classification, and explain the specific differences among the three grades UGQ, EP, and Supremo. At the same time, the article will also introduce common Colombian coffee bean brands on the market, including product information recommended by Front Street Coffee, to help coffee lovers more clearly understand the grade and quality of the bag of beans in their hands. [more…]

埃塞俄比亚作为咖啡的起源地，拥有令人惊叹的品种多样性，目前已记录近2000个品种，其中1927个为原生品种。市场上常见的埃塞咖啡豆多标注为Heirloom原生种，但近年来Landrace地方品种和数字品种也逐渐兴起。本文前街咖啡将系统梳理Heirloom原生种的定义、分类与鉴定难题，解析Landrace与数字品种的由来，并详细介绍埃塞俄比亚咖啡豆的分级标准，最后推荐多款前街精选的埃塞原生种咖啡豆，涵盖果丁丁、红樱桃、沃卡、Aricha及花魁5.0等知名产品，附烘焙与冲煮数据分享。 [more…]

Mandheling coffee is produced on the island of Sumatra in Indonesia, Asia, and is also known as "Sumatra coffee." It has a rich taste, combining aroma, bitterness, sweetness, and mellow body, with a slight smoky flavor, making it a favorite of many. Compared with other Indonesian coffees, Mandheling is often drunk as a single-origin black coffee because of its mellow aroma, and generally it is not [more…]

埃塞俄比亚耶加雪菲是精品咖啡中的耀眼明星，但你是否了解其G1与G2分级背后的逻辑？本文从前街咖啡（FrontStreet Coffee）的视角出发，带你深入耶加雪菲的品种体系、分级标准，并对比水洗与日晒两种处理法如何塑造出截然不同的风味口感。无论你是刚入门的咖啡爱好者，还是想精进品鉴经验的资深玩家，都能从中找到实用的参考信息。 [more…]

经常有咖啡爱好者在店里询问，埃塞俄比亚的G1和G2究竟差在哪里，肯尼亚AA又代表什么含义，哥斯达黎加的SHB等级意味着什么。这些字母与数字的组合，实际上反映了各产国对咖啡生豆品质的评定方式。不同产地因历史、贸易、气候和地形差异，形成了各自的分级体系，评判标准涵盖瑕疵比例、豆粒尺寸、种植海拔、生豆密度以及处理方式等多个维度。本文将系统梳理咖啡分级的由来，并逐一介绍埃塞俄比亚、肯尼亚、哥伦比亚、牙买加、哥斯达黎加、巴拿马、危地马拉、萨尔瓦多、洪都拉斯和巴西等代表性产国的生豆等级标准。 [more…]

选购咖啡豆时，包装袋上常出现AA、G1这类字母标识，它们其实代表不同产地的生豆分级体系。本文前街将带你了解埃塞俄比亚按瑕疵豆比例划分的G1至G5等级，以及ECX成立后结合物理特征与杯测评分的九级分类方式，另外还会介绍肯尼亚以颗粒大小区分的AA、AB、PB等八个等级，并简要提及哥伦比亚、牙买加、巴西等国的分级依据，帮助你在买豆时更清楚这些标识背后的含义。 [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). When Colombian coffee beans are mentioned, the delicate berry-like sweet acidity, the aroma of roasted nuts, and the caramel-like finish, with a balanced coffee flavor, make many newcomers to pour-over coffee can't help but exclaim: This is just too [more…]

In coffee history, the specialty coffee wave and its three waves form the basic understanding people have of coffee. People often compare and contrast specialty coffee beans with commercial coffee beans, as if the two were opposites. So what are the differences and connections between them? To understand the differences between the two, we must first understand specialty coffee's [more…]

Indonesian Sumatra Mandheling coffee beans have been renowned for over half a century since the 1960s. Front Street Mandheling coffee is characterized by its unique bitterness that highlights its most distinctive sweetness, much like the bittersweet experiences of life. At Front Street, I once heard a friend use this idiom to describe the experience of drinking Front Street Mandheling coffee. [more…]

Kenyan coffee is famous for its bright fruit acidity and rich flavors, making it a favorite among many coffee lovers. But when faced with grading labels such as AA, AA+, and AB, many people feel confused. From the perspective of Front Street Coffee, this article sorts out the development of Kenya's coffee industry, analyzes the origins and specific standards of its grading system, focuses on explaining the differences between AA grade and AA+ grade, and introduces the impact of the K72 washed processing method on flavor. At the end, it also includes the origin information and brewing parameters of Front Street Kenya Little Tomato coffee beans for daily reference. [more…]

Golden Mandheling is one of the most representative coffees from the Sumatra region of Indonesia, renowned for its full-bodied mouthfeel and distinctive flavor. This article starts with the PWN Golden Mandheling sourced from Front Street Coffee, providing a detailed introduction to the geographical background of its origin at Mount Gayo and Lake Tawar, the stringent standards of its G1 grade and triple hand-sorting, an analysis of the origins and characteristics of the Ateng variety, and an in-depth explanation of how Indonesia's unique wet-hulling process shapes Mandheling's signature goat-hoof-shaped green beans and clean sweetness. It also includes complete product information for Front Street Coffee's PWN Golden Mandheling, including region, altitude, processing method, and flavor description, offering coffee enthusiasts a professional and practical reference guide. [more…]

Terra Nera coffee beans are produced in the Quechua region in the southeastern Andes of Peru. Their value is greatly enhanced by the involvement of the palm civet (Uchunari) in processing, and they are recognized as one of the most expensive and rarest coffees in the world. Its annual output is affected by natural conditions and the state of the palm civets, and has sharply dropped from 70 kilograms to about 45 kilograms. It is divided into six grades, with the top Grade 0 being entirely hand-selected. These beans are sold only in limited quantities at Harrods in London, and must be roasted to order after reservation. Grade 0 even comes with English sterling silver decoration and a 24K gold-plated bag, with the name engraved by a silversmith. In terms of flavor, it is 100% Arabica, with notes of bitter cocoa, hazelnut, and dried leather. The mouthfeel shifts from light to buttery and silky, with a rich, mellow finish. Front Street Coffee will also continue to follow developments involving this kind of rare bean. [more…]

Jamaican Blue Mountain No. 1 coffee beans are widely recognized as the pinnacle of the coffee world, and together with Hawaiian Kona, they are known as "the King and the Queen." Although in recent years, affected by production fluctuations and climatic factors, the overall quality and reputation of Blue Mountain coffee have fluctuated somewhat, Blue Mountain No. 1 still firmly holds the throne, and its price has become more rational. Specialty coffee emphasizes estate traceability, and Jamaican Blue Mountain mainly comes from three major estates: Clydesdale, Mavis Bank, and Moy Hall. This article focuses on Blue Mountain No. 1 from Clydesdale Estate, sorting out its historical context and brand evolution, and introduces Front Street Coffee's recommendation and interpretation of this bean, helping you understand the true grade and flavor characteristics of this legendary coffee. [more…]

曼特宁咖啡是亚洲咖啡版图中最具辨识度的代表之一，以草本、香料与醇厚口感俘获众多咖啡爱好者。本文从前街咖啡的视角出发，系统梳理曼特宁的产区风土、名称由来、湿刨处理法的原理与步骤、印尼咖啡分级标准，并逐一介绍前街店内四款代表性曼特宁——PWN黄金曼特宁、林东曼特宁、老虎曼特宁与陈年曼特宁的产地信息与杯测风味，最后附上统一的冲煮参数与手法分享，帮助读者全面了解曼特宁咖啡的独特魅力。 [more…]