When purchasing single-origin coffee beans, labels such as G1, AA, and SHB often appear on the packaging. What exactly do these letters and numbers represent? They are actually coffee bean grade symbols established by each origin based on its own conditions. Due to differences in growing environments and varieties, the grading criteria of different countries vary—some look at the number of defective beans, some at green bean size, and others at hardness or altitude. In this article, Front Street Coffee will sort out the grading standards of major producing regions such as Ethiopia, Kenya, Indonesia, Central and South America, and Brazil, helping coffee lovers understand the meaning behind these grades so they can more accurately select high-quality coffee beans that suit their own taste. [more…]

Nowadays, many cafés emphasize freshly ground specialty coffee, believing that a rich aroma and a full-bodied taste are the hallmarks of specialty coffee. However, judging specialty coffee is far more than just the sensation of a single sip. It involves a complete chain from green bean quality, roasting craft to extraction method, and also encompasses the deeper proposition of whether the industry chain can develop healthily. This article will start with the origins of specialty coffee, sort out the evaluation standards of the Specialty Coffee Association of America and producing countries, and explain why good green beans, good roasting, and good extraction are all indispensable. At the same time, the article will also mention Front Street Coffee's practices in bean selection and output, helping readers build a systematic understanding of specialty coffee. [more…]

As an agricultural product, coffee inevitably varies in quality, so each producing region establishes a grading system to standardize quality and provide a reference for trading. Yunnan coffee currently follows the "Green Coffee Grade Inspection Standards" released in 2019, but self-assessed standards run rampant in the market, causing grades to become disconnected from flavor. This article will systematically sort out the grading criteria for Yunnan coffee, the commonly used international and domestic standards, the varietal evolution of Arabica coffee, and introduce Front Street Coffee's experimental cultivation and product recommendations in Yunnan, finally attaching practical brewing parameters to give you a comprehensive understanding of the current state and charm of Yunnan specialty coffee. [more…]

Why drink specialty coffee? What does it really mean? Starting from personal preference, this article breaks down specialty coffee's cupping standards, industry value, and diverse business models, exploring how it drives the entire coffee industry to improve, while retaining Front Street brand recommendations. [more…]

People who drink coffee regularly may have heard terms like industrial coffee, commercial coffee, and specialty coffee, but by what standards are they actually classified, and how do they differ in taste and use? This article starts with the varietal composition of coffee beans, sorts out the definitions and main uses of the three categories, and further introduces evaluation methods for specialty coffee such as growing altitude, screen size, and defect bean ratio, as well as the higher standards represented by estate coffee. The article also discusses how consumers can determine which tier the coffee they drink falls into, and recommends several commercial and single-origin beans from Front Street Coffee with outstanding value for money, suitable for enthusiasts who want a systematic understanding of coffee grading. [more…]

The name Blue Mountain coffee is almost universally known; even before the rise of the specialty coffee movement, it was synonymous with top-tier coffee. Yet when actually tasted, many people find it merely ordinary. What exactly makes Blue Mountain coffee so expensive? Does its flavor justify its price? To answer these questions, we must start with the establishment of the Jamaica Coffee Industry Board (CIB). It was this institution that, long before the concept of specialty coffee was even born, elevated Blue Mountain coffee to a king's status through strict grading and cupping standards. This article will trace the rise to fame of Blue Mountain coffee, the rules defining its production region, its green bean grading system, and its signature balanced flavor. [more…]

Kenyan coffee is world-renowned for its rigorous grading system and distinctive flavor characteristics. This article systematically reviews Kenya's coffee bean size grading system, including the specific standards for common grades such as AA, AB, and PB, while also introducing flavor grading methods like TOP and PLUS. Drawing on Front Street Coffee's roasting and brewing practices, and using Kenyan Asaliya coffee beans as an example, the article explains in detail the flavor performance of AA-grade beans and suggested pour-over parameters, providing coffee enthusiasts with a complete reference from bean selection to tasting. [more…]

In the face of a dazzling array of coffee beans, how can one judge quality? Currently there is no unified international definition of specialty coffee, but the Specialty Coffee Association of America and coffee-producing countries each have their own set of evaluation criteria. The former scores based on dimensions such as dry and wet aroma, acidity, body, aftertaste, flavor, and balance, while the latter focuses on conditions such as variety, altitude, terrain, and processing method. This article systematically sorts out these standards and summarizes the core characteristics of specialty coffee beans in terms of variety, growing environment, harvesting and processing, and grading, storage, and transport, while also explaining the freshness, healthfulness, and flavor performance that specialty coffee beverages should have. At the end, it also recommends Front Street Coffee's espresso blend solutions for different needs, for the reference of coffee enthusiasts and industry professionals. [more…]

The green coffee bean grading system directly affects roasting results and coffee quality. This article systematically sorts out two mainstream grading methods: distinguishing bean size by screen mesh number, and classifying grades based on growing altitude. It also summarizes the common grading standards and codes of origins such as Kenya, Ethiopia, Colombia, Brazil, Guatemala, El Salvador, Hawaii, Jamaica, and Indonesia. Whether for bulk trade or specialty coffee, understanding these grading rules helps to more accurately judge the characteristics of green beans, and Front Street Coffee also incorporates this knowledge into its daily bean selection and roasting practices. [more…]

In the evaluation system of specialty coffee, cleanliness is a core indicator that cannot be overlooked, yet many coffee enthusiasts have misunderstandings about it. Some believe that cleanliness means a single flavor profile, while others equate it with the clarity of the coffee liquid. In fact, cleanliness is closely tied to coffee quality—it requires both the absence of negative defect flavors and the presence of forward flavors that are sufficiently clear and distinguishable. Front Street Coffee will start from cupping standards to systematically sort out the two-layer evaluation logic of cleanliness, helping everyone re-understand this key concept in specialty coffee evaluation and understand why it can directly reflect the overall quality level of coffee. [more…]

Since McDonald's coffee brand McCafé announced increased investment in the Chinese market, its number of stores has surpassed 3,200. Its "store-within-a-store" model is equipped with semi-automatic espresso machines and dedicated baristas, focusing on a specialty coffee approach. However, recently a netizen posted pointing out that baristas at some McCafé locations operate in a highly non-standard manner: dosing the portafilter in advance, not weighing the dose, not tamping, not cleaning the steam wand, and repeatedly extracting with wet spent grounds left in the basket. Although the prices are not low, the quality of the output has raised consumer doubts. At the same time, some netizens claiming to be McCafé baristas responded that the brand has unified standards, and isolated incidents should not represent the whole. This controversy reflects the quality control and training challenges McCafé faces amid rapid expansion, and is worth the attention of coffee enthusiasts. [more…]

Before green coffee beans reach our hands, they often go through many stages, during which defects are almost unavoidable. Some defects are obvious at the green bean stage, yet once roasted they may be cleverly concealed. The SCAA (Specialty Coffee Association of America) has established strict grading standards for specialty Arabica coffee, covering multiple dimensions such as defect types, moisture content, aroma, and bean size. This article will systematically sort out the SCAA's defect classification rules and scoring requirements, explain in detail the causes of various defective beans and their impact on cupping flavor, and help enthusiasts develop a keen eye for identifying specialty coffee. At the same time, the article retains relevant recommendations from the Front Street brand for readers' reference. [more…]

Coffee enthusiasts often ask in the shop exactly what the difference is between Ethiopia's G1 and G2, what Kenya AA actually means, and what Costa Rica's SHB grade signifies. These combinations of letters and numbers actually reflect how each producing country evaluates the quality of green coffee beans. Due to differences in history, trade, climate, and terrain, different origins have developed their own grading systems, with evaluation criteria covering multiple dimensions such as defect percentage, bean size, growing altitude, green bean density, and processing method. This article will systematically sort out the origins of coffee grading and introduce, one by one, the green bean grade standards of representative producing countries such as Ethiopia, Kenya, Colombia, Jamaica, Costa Rica, Panama, Guatemala, El Salvador, Honduras, and Brazil. [more…]

As the world's largest coffee producer, Brazil has a uniquely distinctive grading system that combines three criteria—defect rate, screen size, and cupping flavor—which sets it apart from the single-criteria grading methods used by most producing countries. By understanding the markings on a bag, such as "Brazil NY.2 SC – 17/18 FC Cerrado," you can quickly grasp a Brazilian bean's quality and origin information. This article will break down these three grading systems one by one, explain the six-tier classification standards for taste and flavor, and recommend two Brazilian specialty beans from Front Street Coffee—Queen's Farm Yellow Bourbon and Cerrado everyday drinking beans—to help coffee lovers find the Brazilian flavor that suits them. [more…]

Brazilian coffee occupies a pivotal position in global production, but does it really count as good coffee? This article begins with the evolution of coffee consumption concepts in China, reviewing the journey from the instant coffee era to the specialty coffee wave, and then explores the common dimensions for judging coffee bean quality—price, flavor, and cupping scores. Drawing on SCA standards, it explains in detail the dividing line between specialty beans and commercial beans, and, combined with amusing anecdotes from Front Street Coffee's operations, reveals the subtle influence of price on consumers' judgments. Finally, it focuses on the grading system for Brazilian coffee beans, using specific indicators such as NY.2, Screen 18, and Good Cup as examples to show that an affordable price does not equal inferior quality, and that balanced ordinariness can also be a good cup of coffee. [more…]

Colombian coffee, with its broad versatility, holds a place in both blending and single-origin fields, capable of handling the richness of a French press while also meeting everyday consumer needs. This article starts from the development thread, sorting out the producing regions, flavor characteristics, and growing conditions of Colombian coffee, explaining in detail the influence of the Central Cordillera and southern soils on coffee quality, and systematically introducing raw bean grading standards such as Excelso and Supremo. Finally, it presents two recommended bean selections—Front Street Coffee Washed Huila and Front Street Coffee Specialty Blend—suitable for pour-over, espresso, and various other brewing methods, helping enthusiasts gain a comprehensive understanding of the key points for purchasing and tasting Colombian coffee. [more…]

Brazil, as the world's largest coffee producer, supplies about 45% of the world's green coffee beans, and its production fluctuations directly affect international coffee price trends. However, Brazil has numerous coffee-producing regions with uneven quality, making grading work especially complex. Front Street Coffee takes you on an in-depth look at Brazil's green bean grading system—from the flatland growing environment at altitudes of 600 to 1200 meters, to the flavor differences among seven major producing regions including Minas and São Paulo states, and to the multiple grading standards centered on defect deductions, screen size specifications, and cup quality flavors. The article will also introduce the origin information and flavor performance of Front Street Brazil Queen's Estate Yellow Bourbon coffee and Cerrado coffee, helping you fully understand the specialty potential of this representative neutral coffee country. [more…]

When selecting coffee beans, you'll often come across labels like Yirgacheffe G2 or Kenya AA. Behind these letters and numbers lies the logic each producing country uses to assess green bean quality. Due to differences in history, trade, climate, and terrain, grading criteria vary widely from country to country—some focus on defect rates, some measure bean size, and others test altitude or hardness—and they cannot be directly compared across origins. Front Street Coffee has compiled the grading systems of representative producing countries including Ethiopia, Kenya, Colombia, Jamaica, Costa Rica, Panama, Guatemala, El Salvador, Honduras, and Brazil to help you understand the ins and outs behind green bean grades. [more…]

Starbucks Reserve and regular stores have clear differences in branding, brewing methods, and experience. Their menus include both drinks priced the same as regular stores and specialty beverages and pour-overs made with specialty beans available only at Reserve stores, which are relatively more expensive. This article will explain Reserve coffee's bean selection standards—terroir conditions, processing methods, coffee varieties, and human stories—and introduce how to consult staff when ordering based on flavor and taste. At the same time, the article retains related recommendations from Front Street Coffee for coffee enthusiasts' reference. [more…]

Tanzania, one of Africa's Big Three coffee producers, has performed increasingly impressively in the global specialty coffee market in recent years. When buying Tanzanian coffee beans, what exactly do the "AA" and "AB" labels commonly seen on packaging mean? These letters are in fact grade codes for Tanzanian Arabica coffee beans, using a British imperial grading method similar to Kenya's, though the specific standards differ. Tanzanian authorities grade coffee by screen size, assuming that larger size means better quality, and classify beans into multiple grades such as AAA, AA, A, B, PB, C, E, F, AF, and TT. Among these, Grade AA requires mostly 17 to 18 mesh, while Grade AB is a mix of Grades A and B, and no such official grade actually exists. This article will explain in detail the specific mesh requirements and screening standards of each grade, helping coffee lovers decipher the grading code of Tanzanian coffee beans. [more…]