Recently, a controversy over a customer being visited at home by a霸王茶姬 (Chagee) employee after leaving a negative review has sparked widespread discussion online, with related topics trending on Weibo on Monday morning. According to Star Video, on July 20, a man in Chengdu, Sichuan Province, posted a video claiming that after consuming a drink at Chagee the previous day, he felt the taste was different from before. He did not choose to request a refund or a remake, but directly left a negative review on the order. Unexpectedly, the next day, the employee suddenly showed up at his door without contacting him in advance, asking him to delete the negative review. After the incident was exposed, netizens had mixed views on the employee's behavior, with some exclaiming "too scary," while others expressed understanding for the worker. Chagee customer service responded that the store wanted to communicate amicably with the customer, and the store manager involved explained that they went to the customer's home because the delivery rider, the store, and the platform all could not get through to the customer by phone. This article sorts out the course of the incident and the views of all parties, and explores reasonable ways for merchants to respond to negative reviews. [more…]

In the coffee industry, customer reviews are an important yardstick for measuring a store's service quality, and also a key link between consumers and coffee shops. Whenever a bad review appears, staff members tend to collectively panic, replay the incident over and over in their minds, and reflect deeply. However, there are always some bad reviews that leave people both exasperated and amused—from complaints that the shop door is too heavy, to grievances about not being called "princess," to getting fired for being late to a meeting because the coffee was too good. Apart from these absurd reviews, quite a few bad reviews stem from customers' unfamiliarity with a product's taste, and chain brand stores often have no authority to adjust recipes on their own, so these reviews unrelated to the product end up adding extra burden on staff. To cope with this situation, coffee shop workers each have their own tricks. [more…]

For the appreciation of coffee, it is also a very important thing to recognize its negative tastes. Although people's perception of positive flavors has come easily, when drinking a cup of uncomfortable coffee, they can only use the general terms suc [more…]

Cleanliness is an important dimension in judging coffee quality. It reflects whether a cup of coffee carries negative flavors such as earthiness, hay, or woodiness, or unpleasant sensations like astringency and dryness. From harvesting and processing to roasting and brewing, every stage can influence the level of cleanliness. This article starts with the emphasis COE cupping places on cleanliness, traces the historical problems Brazil—the world's largest coffee-producing country—has faced due to machine harvesting and rough sun-drying, and then extends to the impact of the roasting and brewing stages on cleanliness, helping coffee lovers systematically understand the industry chain logic behind a clean cup of coffee, while also retaining relevant recommendations for the Front Street brand. [more…]

In the process of learning coffee tasting, most people habitually focus their attention on capturing positive flavors such as floral and fruity notes and caramel sweetness, yet often lack the ability to describe unpleasant tastes. However, the key to truly improving one's tasting ability lies precisely in being able to accurately identify and distinguish negative flavors in coffee. This article, from Front Street's tasting perspective, systematically sorts out common defects such as greenness, over-fermentation, and off-flavors, and with the help of specific imagery such as earthy, woody, smoky, rubbery, medicinal, charred, and moldy, helps enthusiasts build a clear cognitive framework for negative flavors, so as to understand a cup of coffee's quality performance more comprehensively. [more…]

In the practice of pour-over coffee, "cutting off" the brew is a technique that is often mentioned. Many enthusiasts believe that the tail-end coffee liquid carries bitterness, and so habitually remove this portion at the end of brewing. However, cutting off the brew is not a universal key—improper use can instead destroy the coffee's complete flavor. From the perspective of Front Street, this article takes a deep dive into the dissolution patterns of bitter substances, explains why the tail end does not produce negative flavors under reasonable parameters, and distinguishes in detail between the two concepts of coffee-to-water ratio and coffee-to-liquid ratio, while also sorting out the two scenarios in which cutting off the brew truly applies—actively incorporating the cutoff into the brewing framework, and being forced to cut off due to clogging. By understanding these principles, coffee enthusiasts can use the cutoff more scientifically and improve their brewing quality. [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…]

When learning coffee tasting, most people focus their energy on describing positive flavors. For example, when describing a cup of coffee, they can rattle off "jasmine, lemon, strawberry, caramel, chocolate," but when they taste something unpleasant, they can only say "burnt bitter, muddy, green and astringent." In fact, to learn coffee tasting, [more…]

When an unpleasant flavor appears in a cup of coffee, it is often not accidental, but rather a deviation in some detail during growing, processing, roasting, or brewing. If we can identify these negative flavors one by one, we can work backward to infer what went wrong with the cup, which is practically helpful for improving tasting ability and optimizing brewing and roasting. Front Street Coffee has compiled several of the most common off-flavors in pour-over coffee—including miscellaneous odors, earthiness, woodiness, smokiness, charcoal, medicinal notes, mustiness, rubber, and rot, as well as astringency and dryness, two tactile sensations that are not tastes—and analyzes their causes and key points for identification one by one. [more…]

Do coffee beans really only taste bitter and muddled after sitting for a long time? In fact, as long as they are stored properly, you can still brew good coffee within two months of roasting—the key is understanding how gas loss affects extraction efficiency. Drawing on Front Street's practical experience, this article analyzes the essential reasons behind the flavor decline of stale beans and offers specific solutions such as lowering the water temperature, coarsening the grind, shortening the brew time, and adjusting the coffee-to-water ratio. Finally, using a La Esmeralda Green Label Geisha that has been stored for nearly two months as an example, it demonstrates a complete 1-minute-52-second brewing process to help you still get a cup full of sweetness with no negative flavors even when the beans are not fresh. [more…]

The scoring criteria for coffee cupping. The cupping of coffee beans was initially to ensure whether the quality of the coffee beans that are about to enter the trade is qualified. With the passage of time, after the concept of specialty coffee was b [more…]

Cupping began as a quality control method used in the trade to verify whether coffee beans met standards. After the rise of the specialty coffee movement, it gradually evolved into a scoring system for evaluating coffee. Anything below 80 points is classified as commercial grade, while reaching 80 or above crosses the threshold into specialty coffee—the higher the score, the more outstanding the quality. At present, the two globally recognized authoritative scoring systems come from the SCAA and the COE. This article focuses on the SCAA cupping scoring system, breaking down one by one its eleven scoring dimensions, the required number of sample cups, the division of score ranges, and how defect deductions are calculated, to help readers fully understand how a cup of coffee is quantified into a score. [more…]

You often hear the "Golden Cup Standard" mentioned in coffee circles—what exactly does it mean? Simply put, it's an extraction reference range derived by Dr. Lockhart in the last century through extensive sampling surveys—when coffee's extraction yield and concentration fall within a specific range, most people find it tastes good. After subsequent research revisions, the optimal extraction yield was ultimately determined to be 18%~22%, and concentration 1.15%~1.35%. However, Front Street would like to remind everyone that the Golden Cup Standard is only a reference benchmark for beginners, not the sole criterion for whether coffee tastes good. This article will break down in detail the origins of the Golden Cup Standard, the meaning of extraction yield and concentration, and why coffee outside this range isn't necessarily bad—helping you understand the extraction logic of pour-over coffee more flexibly. [more…]

If you want to learn how to brew coffee, you must first learn how to drink coffee. Of course, "learning to drink coffee" here does not mean being able to describe gorgeous flavor notes; it is more about being able to judge whether a cup of coffee is good or bad—that is, whether it tastes good or not. Whether a coffee tastes good or not, subjectively and objectively, depends to a fairly large extent on personal preference. [more…]

Many coffee enthusiasts have come across bloggers sharing their experiences with bean sorting before brewing. The main purpose of sorting beans is to remove defective beans that carry negative flavors. This article focuses on this topic, systematically outlining the types, causes, and identifying characteristics of common coffee defects, including moldy beans, insect-damaged beans, black beans, and the more unusual quaker beans, while explaining their specific impact on coffee flavor. It also addresses a practical question: if the chosen merchant is reliable enough and the beans have undergone multiple rounds of sorting before and after roasting, is it still necessary to sort beans by hand yourself? Drawing on Front Street Coffee's sorting process and a 15g Panama Boquete Geisha as an example, the article offers a useful reference answer. [more…]

The specialty coffee wave has made more and more people passionate about describing the floral and fruity notes in light-roasted coffee, but when a cup of dark-roasted coffee is placed in front of them, most can only say nuts and chocolate. Is the flavor of dark-roasted coffee really that one-dimensional? In fact, aroma types such as caramel, roasted, nutty, and spicy are all hidden within it—they are simply harder to identify. In this article, Front Street Coffee will guide you through a systematic understanding of where the flavors in bitter dark-roasted coffee come from and how to capture them, while also reminding you to watch out for those unpleasant negative flavors. [more…]

Luckin Coffee's recently re-released Red Wine Americano has sparked widespread discussion. This new product, which combines red wine flavor with coffee, has polarized reviews due to its unique taste. Some consumers have shared "warning" experiences on social media, describing its taste as hard to accept; meanwhile, other customers say they enjoy this rich flavor combination. Due to the large number of negative reviews, some store employees have handwritten notes asking customers not to leave negative reviews lightly, triggering discussions among netizens about the brand's review system and store responsibilities. This article will sort out the whole incident, consumer feedback, and the controversy surrounding the review mechanism. [more…]

Many coffee lovers find that after getting their hands on Brazilian beans, the coffee they brew has a pronounced bitterness, sometimes even an unpleasant scorched bitterness that stings the throat. Brazilian coffee beans are mostly medium-dark roasted, and bitter notes are inherently part of their flavor profile, but bitterness comes in both positive and negative forms—the bitterness of nuts, chocolate, and caramel is pleasant, while smokiness, wood shavings, medicinal notes, and burnt flavors are defects. Using beans from Brazil's Cerrado region as an example, Front Street Coffee breaks down one by one—from dripper selection, dose, coffee-to-water ratio, grind size, and water temperature to the three-pour technique—how to brew a cup of full-bodied, sweet Brazilian pour-over with rich caramel and nut flavors, while avoiding the development of negative scorched bitterness. [more…]

Huakui coffee beans have attracted much attention since winning the TOH championship in 2017. DW Company has launched the X.0 series year by year, making many enthusiasts curious about its flavor evolution. This article will start with the origin and naming logic of Huakui, sort out the origin of small-bean Huakui, and the flavor foundation brought by natural processing, and combine Front Street Coffee's cupping and brewing practices to share Huakui's flavor performance and extraction parameters. At the same time, the article will also help you build a taste framework for judging whether coffee is good or bad, and understand the negative flavors corresponding to under-extraction and over-extraction, so that you can more accurately describe a cup of coffee when tasting it. [more…]

Is the sourness in coffee good or bad? Some people believe that sourness means the coffee is not fresh, while others regard it as a hallmark of high-quality coffee. In fact, green coffee beans themselves are rich in organic acids, most of which decompose or disappear after roasting, leaving only a limited variety of organic acids in the final cup. The latest research shows that there are not many acids that our taste buds can clearly identify, and much of the fruity acidity we perceive actually comes from the combined association of sourness with other flavors. The latest SCA cupping form classifies acidity into two categories—"sweet type" and "dry type"—helping us more accurately judge whether a coffee's acidity is good or bad. This article, from the professional perspective of Front Street Coffee, will provide an in-depth analysis of the sources of coffee acidity and the criteria for evaluating it. [more…]