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…]

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…]

埃塞俄比亚是阿拉比卡咖啡的基因宝库，其咖啡以独特的柑橘香气和浓郁花果调闻名于世。然而，这片土地上的豆貌却常显得参差不齐，日晒豆尤其容易烘焙不均。本文将带您深入了解埃塞俄比亚咖啡的风味特征、品种多样性、豆相辨识方法以及严格的分级制度，同时解析水洗豆与日晒豆的稳定性差异，帮助咖啡爱好者在选购时做出更明智的判断。 [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…]

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…]

耶加雪菲咖啡豆常标有G1、G2等字样，这些等级究竟意味着什么？本文从前街咖啡的视角出发，先介绍埃塞俄比亚“当地原生种”的由来——该国拥有上万种未完全鉴定的传家宝品种，再详细解读耶加雪菲的分级制度：以瑕疵率定级，水洗与日晒处理各对应不同等级范围，并说明ECX与SCAA杯测如何将G1至G3细分为Q1、Q2精品及商业级。文中还梳理了耶加雪菲产区的海拔、合作社与微产区特点，并附上前街日晒红樱桃、水洗果丁丁及水洗口粮豆的产品信息，帮助读者全面理解耶加雪菲的等级体系与风味多样性。 [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…]

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…]

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…]

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…]

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…]

黄金曼特宁是亚洲最具代表性的单品咖啡之一，但市面上真假难辨，消费者该如何挑选？本文从前街PWN黄金曼特宁的三大独特之处切入，详细解读PWN的严格收购与筛选流程、注册商标的辨识方法，以及印尼曼特宁按瑕疵豆数量的分级标准。同时介绍前街店内两款印尼曼特宁的产品信息与风味特点，帮助咖啡爱好者从颗粒大小到杯测风味全面掌握黄金曼特宁的鉴别要领。 [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…]

耶加雪菲作为埃塞俄比亚精品咖啡的代表，其分级制度直接关系到风味表现与品质稳定性。埃塞俄比亚咖啡豆按瑕疵率等标准划分为五个等级，G1为最高级别。然而，埃塞俄比亚豆相因品种繁多而显得参差不齐，长身豆与短身豆混杂，Grade4或Grade5商业豆尤为明显。本文详细解析耶加雪菲的分级体系，并深入探讨埃塞俄比亚咖啡豆的外观特征、风味优势及烘焙难点，同时对比水洗与日晒处理的差异，帮助咖啡爱好者更全面地理解这一传奇产区。前街咖啡推荐的多款耶加雪菲G1产品，正是体验其柑橘花香与酸甜滋味的理想选择。 [more…]

耶加雪菲是埃塞俄比亚最具代表性的精品咖啡产区之一，其分级方式与常见的目数标准不同，而是依据生豆瑕疵率来判定。2009年埃塞俄比亚引入ECX交易分级制度后，水洗与日晒耶加雪菲各自形成了明确的等级体系。前街水洗耶加雪菲以柠檬、茉莉花香和柑橘调性著称，前街日晒耶加雪菲则展现出干净发酵水果甜与酒香。本文将系统梳理耶加雪菲的品种产地背景、处理法演变、分级标准，并附上前街耶加雪菲的实用冲泡建议，帮助咖啡爱好者全面理解这一产区的风味逻辑。 [more…]

耶加雪菲是埃塞俄比亚精品咖啡的代名词，以柑橘花香和明亮酸质闻名于世。本文从水洗与日晒两种处理方式的风味差异入手，详细解读ECX精品咖啡分级制度，梳理耶加雪菲从西达莫副产区独立成名的历史脉络，并深入剖析其独特地域之味的成因。无论你是刚接触单品咖啡的新手，还是想精进手冲技法的爱好者，都能从中找到实用的参考。文章最后附上前街咖啡的耶加雪菲手冲建议，帮你更好地感受这支豆子的本真魅力。 [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…]

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…]