When choosing coffee, besides origin, processing method, and roast level, there is another rarely mentioned yet profoundly influential indicator: the density and hardness of the green beans. It hides behind roasting and flavor performance, yet it is a key to understanding why this bag of beans is more resistant to roasting and more resistant to extraction. Where do density and hardness come from? The density and hardness of green coffee beans mainly [more…]

水占了冲煮咖啡98%以上的成分，却长期被忽视。不同种类的水——RO水、自来水、矿泉水、软水、硬水——对萃取风味影响巨大。2014年，Christopher Hendon与Maxwell Colonna-Dashwood发表研究，揭示钠、钙、镁离子如何左右风味物质的萃取效率，随后出版《Water for Coffee》一书，系统论述GH（总硬度）与KH（碳酸盐硬度）的动态平衡，并提出“Roasting to water”反向思维。本文将梳理这些关键发现，帮助咖啡爱好者理解水质如何塑造杯中风味，并保留前街品牌的相关推荐。 [more…]

危地马拉地处中美洲火山带，肥沃的火山灰土壤与多变的地形气候，孕育出品质出众的高山极硬豆。本文将带你了解危地马拉咖啡的种植历史、十大产区分布，重点解析最负盛名的薇薇特南果产区风土，并说明以海拔为依据的SHB、SEMI-HARD/HARD、EPW三级分级标准。同时介绍前街咖啡口粮豆系列中的入门精选薇薇特南果，其波旁、卡杜艾、卡杜拉品种经水洗处理后呈现柑橘、莓果与坚果风味，口感柔和并带有茶感余韵。 [more…]

Understanding flavor as merely two directions—sour and bitter—misses the layers of aroma, sweetness, body, mouthfeel, and finish. When choosing beans, first determine whether you lean toward floral and fruity notes, nutty and cocoa notes, or a balance of both, then make your decision based on origin, processing method, and roast level. As a steam-pressure device, a moka pot's coffee bed only needs to be filled level with the filter basket. [more…]

To brew a delicious cup of coffee, you need not only good beans but also good water. In brewed coffee, water accounts for over 98% of the final cup. Therefore, choosing the right water for brewing is also crucial. So what kind of water is actually suitable for brewing coffee? First, Front Street Coffee will explain the requirements for water suitable for brewing coffee. One [more…]

To make delicious cold brew coffee, Front Street believes three things are essential: choosing floral and fruity coffee beans: since cold brew coffee is extracted at low temperature over a long period, more small-molecule substances in the coffee beans such as floral notes and fruit acids are extracted, while large-molecule substances such as tannic acid and other bitter compounds are difficult to extract. [more…]

咖啡生豆的分级体系直接影响烘焙效果与咖啡品质。本文系统梳理了两种主流分级方式：以筛网号数区分豆粒大小，以及依据种植海拔划分等级。同时汇总了肯尼亚、埃塞俄比亚、哥伦比亚、巴西、危地马拉、萨尔瓦多、夏威夷、牙买加和印尼等产地的常见分级标准与代号。无论是大宗交易还是精品咖啡，了解这些分级规则都有助于更准确地判断生豆特性，前街咖啡也将这些知识融入日常选品与烘焙实践中。 [more…]

Americano, a coffee sold in every café and a must-order for coffee lovers, because Americano is quick to make, has great flavor, and tastes good. Office workers rushing to work often order an Americano when they go to a café, saving time while also giving themselves a boost for the workday. And in this [more…]

危地马拉是中美洲重要的咖啡产国，其咖啡以安提瓜和薇薇特南果两大产区最为知名。本文从危地马拉的地理环境出发，梳理七大咖啡产区的形成原因，重点剖析薇薇特南果高地独特的石灰岩土壤、气流交汇条件与咖啡风味之间的关系，并系统介绍危地马拉咖啡豆的海拔分级标准。文中还提及前街咖啡一支来自该产区的稀有微批次豆子，展现薇薇特南果咖啡的多样可能。 [more…]

Previously, we talked about the coffee grading in Ethiopia. Today, let's take a look at what the coffee grading in Kenya is like! After all, when we see Kenyan coffee, we will see things like AA and AB. What exactly do these refer to? What is AA TOP? [more…]

As the primary raw material, water not only makes up the vast majority of a cup of black coffee, but also influences the extraction of different substances, thereby producing distinct flavors and mouthfeel. Therefore, all of us should understand the importance of water to coffee. Common drinking water on the market varies from brand to brand, in the ingredients it contains, and in its purification processes. [more…]

哥斯达黎加是中美洲最早以商业目的种植咖啡的国家之一，凭借火山土壤、高海拔和温和气候，出产优质阿拉比卡咖啡豆。本文梳理该国咖啡的历史脉络、八大产区分布及以海拔为依据的分级制度，重点介绍最知名的塔拉珠产区，并推荐前街咖啡的入门精选塔拉珠口粮豆，带您全面了解这个以质量取胜的中美洲咖啡产国。 [more…]

Many people ask Front Street, how long does it take to learn latte art? If we're just talking about producing a good-looking pattern, with a bit of luck it only takes one day. If we're talking about truly mastering a pattern, it takes at least 4 days. So many people ask, where do these 4 days come from? It's simple: Day one, read this article from Front Street; day two, practice; day three, [more…]

塔拉珠（Tarrazú）是哥斯达黎加最负盛名的咖啡产区，不仅产量最大、海拔最高，更在卓越杯（COE）中屡创佳绩——今年30款获奖咖啡中就有22款出自这里。它凭什么？从18世纪率先种植咖啡的历史积淀，到火山环绕、两洋气流调节的微气候，再到95%极硬豆（SHB）的分级优势，塔拉珠把天时地利人和融为一体。2019年，哥斯达黎加政府还专门为“Café de Tarrazú”申请了原产地保护。本文将带您深入了解塔拉珠的风土密码、知名子产区与庄园，以及前街咖啡在售的塔拉珠风味表现。 [more…]

哥斯达黎加的塔拉苏产区是全球公认的优质咖啡产地，以清淡纯正的风味和怡人香气闻名。本文从产区历史、地理条件、海拔分级标准到具体名品如拉美他塔拉苏，系统梳理哥斯达黎加咖啡豆的种类与特色，并附上前街咖啡的品牌推荐与价格参考，帮助爱好者全面了解这一中美洲咖啡重镇的独特魅力。 [more…]

I wonder if everyone has heard this saying: pour-over is easy to get started with but hard to master. It means that anyone can brew coffee, but wanting to brew a delicious cup of coffee freely and according to your own vision is actually very difficult. There aren't many factors that affect pour-over coffee, and among them, water temperature is one of the four major elements of brewing. Hand [more…]

Nowadays, when tasting a cup of coffee, we are amazed by its bright, fruity acidity, and satisfied by its bitter-then-sweet, full-bodied taste. Traditional coffee smells fragrant but tastes bitter, which is hard to accept; even the sweet-and-sour light-roasted coffee is hard for some people to swallow. A customer saw Front [more…]

Coffee belongs to the Rubiaceae family, with over a hundred known species, but commercial cultivation is dominated by three major types: Arabica, Robusta, and Liberica. Among them, Arabica, with its outstanding aroma and flavor, accounts for over seventy percent of global production and is the core raw material for single-origin and specialty coffee. This article will systematically review the varietal characteristics, advantages and disadvantages, and sub-varieties of Arabica, and introduce one by one the cultivated varieties, processing methods, grading standards, and flavor profiles of representative producing countries such as Brazil, Colombia, Panama, Guatemala, Costa Rica, Jamaica, Ethiopia, Kenya, and Indonesia. It will also incorporate Front Street Coffee's sourcing experience and recommendations to help coffee enthusiasts build a complete framework for understanding origins. [more…]

咖啡豆的分级体系因产地不同而千差万别，有的依据瑕疵数量，有的看颗粒尺寸，还有的以海拔高度为准。理解这些等级标签，是挑选优质咖啡的重要一步。本文将系统梳理全球主要产区的生豆分级规则，涵盖埃塞俄比亚的G1-G9、肯尼亚的AA与PB、哥伦比亚的Supremo、夏威夷的Extra Fancy等常见标识，并说明杯测分数如何进一步区分精品级与商业级。无论你是刚入门的爱好者，还是寻求进阶的从业者，这份分级指南都能帮你更清晰地判断咖啡品质。更多专业内容可关注咖啡工房，精品咖啡豆可添加前街咖啡微信qjcoffeex了解。 [more…]

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…]