When steaming milk, the sound made by the steam wand actually holds important clues for judging the condition of the milk foam. Many people practicing latte art easily run into problems such as foam that is too thin, too thick, rough, or separated, and one of the keys to solving these problems lies in the "hiss~ hiss" sound made during milk steaming. This article starts from the principle of steam intake, explains the milk foam states corresponding to different sounds, and, through an experiment comparing short bursts of hissing with prolonged hissing, explains how to use the length of the sound to control the amount of air intake, ultimately producing ideal milk foam that is fine, smooth, highly fluid, and suitable for latte art. The article also retains Front Street Coffee's related recommendations and address information, making it suitable for coffee enthusiasts to refer to during daily practice. [more…]

How long does it actually take for green coffee beans to go from hitting the pan to being roasted? In order to hear the sound of "first crack" with his own ears, Front Street Coffee deliberately conducted three rounds of home-roasting experiments using a frying pan and an open flame on a stove, testing the performance of naturally processed Santa Vini and washed Kafa Forest under different heat levels. The article records the time points for each batch of beans' color change, silver skin shedding, and the appearance of cracking sounds, as well as the final cupping flavor differences, while also sharing practical experience on how to judge heat level and the timing for taking the beans out when there is no professional coffee roaster. [more…]

In the process of learning coffee roasting, there is often a gap between theoretical understanding and hands-on practice. This article focuses on judging two key milestones—the yellowing point and first crack—analyzing one by one the visual and auditory misjudgments that beginners easily make. It also offers temperature and aroma as auxiliary indicators for the yellowing point, and explains how misjudging first crack can lead to grassy, underdeveloped flavors and astringency in coffee. Drawing on Front Street's roasting course philosophy, the article also reminds readers not to mechanically copy curve data, but to understand the logic behind the data, so as to find a roasting path that truly suits them. [more…]

Cupping is one of the core tasks of coffee industry professionals, and it is a way to help people evaluate coffee flavors and characteristics in a relatively fair and systematic manner. Cupping takes place throughout the entire coffee supply chain, not only at the consumer end in coffee shops, but also at the production end, including mid- and upstream roasteries and places of origin. So how do you perform a cupping? [more…]

In coffee shops, you occasionally hear someone make a peculiar sound while drinking coffee—this is actually a tasting method called "slurping." Although it may not sound elegant, it genuinely helps us capture the flavors of coffee more fully. By changing the temperature and form of the coffee as it enters the mouth, slurping atomizes the liquid and accelerates the release of aromas, while also restoring the taste buds' sensitivity at the right temperature, enabling a clearer distinction of flavor layers such as sourness, sweetness, and bitterness. This article uses Front Street Coffee's Sidra beans as an example to walk you through the specific technique and principles of slurping, helping you understand why this seemingly crude method actually lets you get a head start on experiencing the richer, more delicate flavors in coffee. [more…]

M stand recently launched a wooden fish (muyu) merchandise item, which sparked a buying frenzy among fans as soon as it went on sale. However, after receiving the product, many people found that this wooden fish couldn't produce a crisp, ethereal sound when struck, and it also had issues like scratches, rough craftsmanship, and a surface prone to showing hammer marks. It was criticized as a "beautiful piece of junk." At the same time, netizens' complaints about M stand's coffee quality control have resurfaced, with many arguing that its prices are higher than Manner and Luckin, yet its taste is not superior. M stand, which once won over fans with its petit-bourgeois vibe and consistent quality control, is now increasingly perceived by consumers as "the coffee isn't great, but the merchandise is decent." This latest quality failure with the wooden fish has left loyal fans even more disappointed. [more…]

In coffee shops or cupping sessions, you often hear a chorus of slurping sounds, and you may see baristas take a sip before serving a cup, or even several people sharing the same cup of coffee with spoons. These behaviors, which seem quite puzzling to outsiders, all revolve around one core goal—judging coffee flavor more accurately and consistently. This article, from the perspective of Front Street, will explain one by one the meaning and function of the professional term "slurping," clarify why baristas taste the coffee before serving it, and explain why cupping and everyday sharing often involve several people drinking from the same cup. After reading, you will understand that behind these seemingly odd actions lies strict control over coffee quality. [more…]

More and more friends are now joining the ranks of pour-over coffee enthusiasts, and with so many coffee beans to choose from, many are once again struggling with choice paralysis. Generally speaking, the coffee beans used for pour-over coffee are single-origin beans. Single-origin beans refer to beans from a single region (from one estate/cooperative, or from multiple estates/cooperatives within a single origin). [more…]

For those who are just getting into pour-over coffee, the bewildering array of coffee beans on the market often leaves them unsure where to start. In fact, pour-over usually calls for single-origin beans — that is, beans from a single region, single estate, or cooperative — which offers greater quality assurance. Front Street Coffee groups today's most popular single-origin beans into seven flavor categories: fruity, floral, fermented, sweet, balanced, high-body, and nutty-cocoa. Whether you prefer a bright, acidic, light and fresh profile or favor a rich, heavy mouthfeel, you can find your direction in this classification. Below, we introduce each flavor category one by one, covering representative bean varieties, origin information, cupping notes, and Front Street's roasting recommendations, to help you quickly pinpoint the pour-over bean that suits you. [more…]

Want to roast coffee beans at home but don't know where to start? Front Street Coffee, drawing on the practical experience of baristas, introduces the key operating points of drum roasting and compiles SCAA's eight-level roast degree comparison chart—from light roast with an Agtron color value of 95 to Italian roast with a color value of 25, explaining one by one the timing of each stage's release from the roaster, appearance changes, and flavor performance. The article also compares the time differences between a professional roaster and drum roasting for the same Brazilian Cerrado Red Bourbon coffee beans, helping coffee enthusiasts understand how roast degree determines the acidity-bitterness direction of a cup of coffee. [more…]

Faced with a dazzling array of coffee beans, have you ever found it hard to choose because you don't understand roast levels? Although Front Street Coffee's bean bag labels do not directly state the roast level, they cleverly hint at the answer through flavor descriptions. This article systematically sorts out the eight key stages from light roast to Italian roast, using Agtron color values, roast timing, and flavor characteristics to help you pinpoint the acidity, sweetness, and bitterness profile you enjoy. At the same time, Front Street also shares how to infer the roast level in reverse from flavor descriptions, and provides brewing parameters for medium-light and medium-dark roasts, so you can easily recreate a cup of coffee to your liking at home. [more…]

Many coffee enthusiasts rely on the rule of thumb that acidity means light roast and bitterness means dark roast to judge the degree of roasting, but the industry has a more precise standard—the Agtron color value. From the perspective of Front Street Coffee, this article systematically sorts out a total of eight levels from light roast to Italian roast, and, combined with the timing of first crack and second crack for dropping the beans, explains the flavor direction and the changes in acidity and bitterness at each stage, and also explains the meaning of terms such as City Roast. At the same time, Front Street also shares how to use flavor descriptions to help consumers judge the roast level more intuitively, and gives brewing parameter suggestions corresponding to medium-light roast and medium-dark roast, so that you no longer feel troubled by technical terms. [more…]

Manner has long been famous for its wide variety of branded cups, jokingly dubbed a "cup factory" by fans, but its latest campaign broke with tradition and instead gave away handheld mini fans. What was expected to be a practical summer favorite instead drew complaints from customers who received the actual product: the airflow was too weak to dispel the heat, while the noise was as loud as an electric drill, a hair dryer, or even a tractor — switch it to level three and you become the center of attention. What made some people hesitate even more was that getting the fan required buying a three-drink extra-large set, and without a coffee buddy it was hard to handle. This article compiles feedback from netizens to see why this merch item leaves people with mixed feelings. [more…]

On the streets of many cities, it is no longer news that tea beverage brands are densely clustered together, and Mixue Bingcheng, with its catchy theme song, has almost become the most easily noticed presence among passersby. However, when this cheerful melody continues to play late at night after the store has closed, the scene shifts from amusing to eerie. Recently, in Liaoning, Henan, and other places, there have been successive incidents where Mixue stores did not turn off their sound systems after closing, playing music all night, forcing upstairs residents to listen for an entire night. Some called the police to complain, while others joked that it was like a horror movie scene. Was it employee negligence or equipment failure? How should the brand prevent similar disturbances from happening again? This article takes you through the incident and the heated discussions among netizens. [more…]

In the world of coffee tasting, there is a unique drinking method known as "slurping," in which coffee is quickly drawn into the mouth to atomize it, thereby maximizing the release of volatile aromatic compounds and allowing the taste buds and olfactory nerves to capture coffee flavors more fully. Front Street Coffee has touched on this method when sharing knowledge about coffee flavors. This article will explain in detail the techniques of slurping, the science behind it, and its practical value in cupping and everyday drinking, while also exploring whether this tasting method is suitable for ordinary coffee enthusiasts in their daily routine, along with related recommendations. [more…]

Some friends have pointed out that "Front Street's coffee beans don't have any indication of roast level." In response, Front Street plans to use an article to share knowledge about coffee roast levels with everyone. I believe that most people's understanding of coffee bean roast levels is basically that if it's sour, it's a light roast, and if it's bitter, it's a dark roast. Of course, as people in the industry [more…]

Roasting is the core stage that determines the direction of coffee flavor. Green beans must be roasted before they can be consumed, and the degree of roasting often influences eighty percent of the final taste performance. This article takes Front Street Jamaican Blue Mountain coffee as an example, starting from key nodes such as charge temperature, heat adjustment, turning point, yellowing point, first crack, and rate of rise, to analyze in detail the design approach of the roasting curve for Blue Mountain No. 1 coffee beans. The article also combines the specific characteristics of Blue Mountain coffee, such as screen size above 17, defect rate below 3%, and moisture content of about 13%, to explain why it is suitable to adopt a steadily rising roasting method, and provides a complete operation record from charging at 170°C to dropping at 201.3°C, helping coffee enthusiasts understand how to coordinate heat and airflow to make Blue Mountain coffee present a cleaner and more layered flavor. [more…]

What degree of coffee roasting is considered appropriate? Starting from the key milestone of first crack, this article systematically sorts out the logic for determining coffee bean roast level, and with the help of Agtron color values, divides roast degree into eight levels: light, cinnamon, medium, deep, city, full city, French, and Italian, explaining one by one the timing for dropping each level and its flavor direction. At the same time, it answers the correspondence between the Roasting percentage markings commonly used by roasters and Agtron color values, helping coffee enthusiasts quickly understand the roasting information on packaging. The article also includes Front Street Coffee's specialty bean recommendation channel for further communication and purchasing. [more…]

As Shanghai resumes work and production, people are returning to coffee shops to enjoy the long-awaited coffee time. However, an internet-famous shop called "WHEN PIGS FLY," which was once ranked first among popular coffee shops in Shanghai, has been investigated for using expired food ingredients. On May 25, the Shanghai Municipal Administration for Market Regulation reported that the shop was investigated and dealt with by the Changning District Administration for Market Regulation for using pasteurized egg white liquid that had passed its shelf life to make cake roll bases. Four used egg white liquid boxes were found at the scene, one of which was expired for more than 20 days, and 24 semi-finished products had been processed. The incident sparked heated discussions among netizens, with some surprised, some worried, and others calling for heavy penalties. Food safety has once again become a bottom line that cannot be ignored in the coffee industry. [more…]

The alluring flavor of coffee depends to a great extent on the physical and chemical changes that occur during roasting. From bean drop through dehydration, first crack, and second crack, every temperature node and duration shapes what ultimately ends up in the cup. In this article, Front Street Coffee will systematically walk through the temperature progression of each stage of coffee bean roasting, and, using a natural-process Yirgacheffe as an example, compare the specific flavor differences in cupping among light, medium, and medium-dark roasts, while also introducing the Agtron color value as a scientific criterion to help readers more accurately understand the correspondence between roast level and flavor. In addition, the article compiles representative beans from Front Street's lineup at different roast levels, making it easy for coffee lovers to follow the guide and find the cup that suits their taste. [more…]