After brewing is complete, the state of the coffee bed can reveal a lot about the extraction, and the color of the coffee liquid is also often used as a basis for judgment. Many people, upon seeing darker-colored coffee, instinctively assume it tastes stronger, or even suspect it is murky. In fact, the depth of color is related to extraction yield and roast level, but it does not directly equate to a higher or lower level of clarity. This article starts with the color of the coffee liquid, analyzes whether dark color indicates murkiness, and, using Front Street Coffee's comparative brewing examples, explains how to judge clarity through taste rather than sight, while also offering practical advice on bean selection, resting beans, parameter control, and pouring technique. [more…]

Dirty coffee is widely popular for its natural layering of espresso and cold milk. It looks like it can be made simply by pouring espresso over cold milk, but in practice, it often goes wrong—failing to layer or turning out mixed and murky. Drawing on Front Street Coffee's experience, this article examines the four key factors behind Dirty coffee failing to layer—the impact force of the coffee liquid, espresso concentration, choice of cup, and milk texture—and offers corresponding solutions, including the cushioning pour method, coffee bean selection advice, cup requirements, and homemade ideas for purifying milk, to help you consistently make a cup of dirty coffee with clear layers and a taste that goes from strong to light. [more…]

The French press is easy to operate and requires no filter paper, allowing it to retain coffee oils and original flavors, but the murky texture caused by coffee grounds often troubles people. This article focuses on techniques for removing grounds in the French press, systematically explaining how to make French press output approach the cleanliness of pour-over, from grind size control, coffee-to-water ratio setting, water quality selection, to brewing steps and filter paper remedies. At the same time, combined with Front Street Coffee's bean list, it explains the performance advantages of medium-dark roast balanced beans in the French press, and provides alternative suggestions for light roast beans and specific brewing parameters, helping coffee enthusiasts find a balance between convenience and flavor. [more…]

Many coffee enthusiasts run into a common problem when practicing latte art: before the pattern even takes shape, the surface of the liquid has already turned murky. In fact, whether your latte art comes out clean and beautiful depends on whether you got the "incorporation" step right. This article starts with the finer details of incorporation technique, analyzes the common reasons why the surface turns muddy, and walks through the entire latte art process from steaming the milk to pouring the finished pattern. It also draws on the hands-on experience of Front Street Coffee to help you create latte art with clear patterns and sharp contrast, even at home. [more…]

Many coffee enthusiasts notice during pour-over brewing that the coffee liquid is sometimes not as clear as expected, and may even appear somewhat murky. Does this "tea-like" cloudiness mean the coffee tastes bad? This article starts from the definition of coffee liquor color, analyzes how roast level and concentration affect the hue, and then reveals the true cause of the murky sensation—the release of insoluble substances and the condensation of soluble compounds as temperature changes. Through examples using the flannel filter, AeroPress, and other equipment, it shows that cloudiness does not equal poor flavor; sometimes it instead brings a richer mouthfeel and sweetness. Front Street Coffee reminds us: judging a cup of coffee should not be based on appearance alone. [more…]

Dirty Coffee, with its gradient texture formed as espresso slowly seeps into chilled fresh milk and its unique mouthfeel of hot and cold intertwined, has become a popular style for many coffee enthusiasts to challenge themselves with at home. However, many people follow tutorials only to end up with a cloudy "ordinary latte," never achieving the layered effect. Drawing on its store production experience, Front Street Coffee breaks down the key factors affecting Dirty's layering one by one—from coffee bean roast level, cup selection, extraction distance, and coffee liquid concentration to milk texture—and provides specific alternatives and product selection suggestions to help you reliably recreate a beautiful and delicious cup of Dirty. [more…]

1 Dian Dian recently added a fan-created secret drink, "Orange Sea," to its official menu. This beverage, made with a grapefruit green tea base and two scoops of vanilla ice cream, quickly went viral on social media thanks to its bright orange appearance. However, after the new product launched, many customers found the real thing fell far short of the promotional photos—large amounts of white flocculent matter floating in the liquid, murky layers, and a taste where sourness, bitterness, and sweetness each went their own way, drawing complaints that it was like a mismatched pairing. Supporters, meanwhile, argue that it only tastes refreshingly tangy when made fresh and drunk right away. This controversy over looks versus taste reflects the quality-control challenges that arise when secret menus go commercial. [more…]

If you had to trace the "Kenyan taste" back to its processing origins, the answer would most likely point to double washing. This method, known locally as K72, polishes the fruit acidity of Kenyan coffee until it is bright, solid, and yet still clean. Once you understand double washing, you understand where the signature juicy quality of Kenyan beans comes from. Double Washing [more…]

From the same estate, the same variety, and the same harvested batch of coffee cherries, the flavor in the cup can be as different as two distinct beans—simply because of a different processing method. This is the magic of coffee processing. In the microscopic world, it uses microorganisms and time to perform the alchemy of flavor. The washed method is the oldest mainstream technique, and its logic is "to do [more…]

In an era when specialty coffee has unmistakably surged toward "light-roast fruit acidity," the Japanese roasting world took the opposite path: roasting beans dark and thorough, pursuing the mellow aesthetics of "sweetness after bitterness." Japanese-style dark roasting is not an accidental product of over-roasting, but a self-consistent philosophical system. Understanding this school will change how you think about what "coffee should [more…]

Dirty coffee is espresso extracted over iced milk, creating a beautiful layered look. As time passes, the coffee liquid on top slowly encroaches on the pristine white milk, forming a lovely gradient inside the transparent glass, as if the pure white milk has been dirtied. Put simply, a Dirty coffee is a visually striking drink that [more…]

Recently, a claim about a live cockroach being found in a Starbucks drink spread rapidly online, drawing widespread attention. On March 10, a netizen alleged discovering a live cockroach in a Starbucks Tahitian Vanilla Cloud Cold Brew iced beverage. The post was later shared by a blogger with over a million followers, and the incident quickly topped Weibo's trending list. Amid netizens' doubts and Starbucks' official investigation response, the truth remains unclear. This article will provide a complete timeline of the incident, responses from all parties, and netizen opinions, along with professional coffee knowledge exchange channels. Regardless of the outcome, food safety is always the lifeline of the food and beverage industry, and consumers should also protect their rights rationally. For more coffee news, please follow Coffee Workshop and Front Street Coffee. [more…]

Customers and friends often chat about coffee-related topics at Front Street Coffee's stores, such as coffee origins, brewing parameters and steps, or coffee flavors. Then occasionally, some friends bring up more niche topics, for example—the liquor color of coffee. "Liquor color" is a professional term borrowed from tea evaluation. [more…]

In coffee brewing, grind size is the key variable that determines the direction of flavor. The same coffee beans, when used in a siphon, cold drip, French press, or cold brew, require different particle coarseness and coffee doses because of their different extraction principles. This article systematically sorts out the coarseness standards and dosage recommendations for siphon coffee grounds, and compares the reference grind size ranges for cold drip, French press, and cold brew, helping you find the flavor balance point among different devices. The article also includes practical recommendations from Front Street Coffee; whether you are a beginner or an advanced enthusiast, you can find reliable parameter references here. [more…]

For more specialty coffee knowledge, please follow our WeChat official account: Front Street Coffee (FrontStreet Coffee). Dirty Coffee, with its rather playful name, is a unique coffee style; visually, the coffee looks as if it has tainted the white fresh milk, and the blend of hot and cold brings a distinctive layer. [more…]

How to choose an espresso machine when opening a coffee shop? Many people are drawn in by claims that high-end brands hold their value, but the second-hand market hides risks. This article analyzes the arms race phenomenon in coffee machines, examines value-retention cases of brands like La Marzocco, reveals price traps and equipment pitfalls in second-hand transactions, and advises people to act within their means, consider more cost-effective equipment such as those recommended by Front Street Coffee, and keep funds for operations. [more…]

Manner has once again launched a green-themed new product, "Iced Coconut Jasmine Matcha," combining coconut water, jasmine tea, and matcha concentrate, with a visual concept highlighting the vibrant essence of spring. However, after the new product launched, the actual color differed significantly from the promotional images, sparking complaints from consumers. Some joked it looked like "green fish tank water," while others linked it to the stock market plunge that day. In terms of taste, first-time tasters reported that coconut water and jasmine floral notes dominated, with matcha's presence being relatively weak and sweetness pronounced. Is this new product a visual flop or a taste surprise? Let's find out. [more…]

In coffee circles, you often hear evaluations like "this cup of coffee has a very bright acidity," but what exactly does "bright" mean? This article, from the perspective of Front Street Coffee, first clarifies the difference between acidity and acid quality, then breaks down the specific manifestations of bright acidity in taste, aroma, and mouthfeel, and provides references to producing regions and bean lists where you can experience this type of flavor. If you've ever been confused by baristas' descriptive terms, this article will help you turn "bright" from abstract to concrete. [more…]

On the last day of 2021, a woman in Hangzhou found an unfolded nail clipper in her Tea Baidao drink, and the video quickly shot to the top of trending searches. Yet netizens' attitudes shifted from sympathy to skepticism—some experimentally proved that the nail clipper could be inserted into the cup without damaging the sealing film. Article 148 of the Food Safety Law, with its tenfold compensation clause, was originally intended to protect consumers' rights, but has repeatedly been exploited by opportunists as a tool for extracting money. Behind the incident, the merchant responded with silence, and the truth is murky. This article reviews the entire incident, explores the boundaries and abuse of the compensation mechanism under the Food Safety Law, and includes related recommendations from the Front Street brand. [more…]

Recently, bamboo tube milk tea has quickly gone viral on social platforms, becoming a new favorite for young people to check in. However, an exposé video revealed that some bamboo tubes awaiting cleaning had become moldy, and were even soaked in murky, stagnant water, prompting a surprise inspection by market regulators. Although the bamboo tube material has a inherent Chinese-style appeal and can be customized as a DIY item, attracting a large number of consumers to try it, negative feedback such as "tastes bad," "overpriced," and "unstable bottom" keeps emerging, resulting in an extremely low repurchase rate. Starting from this incident, this article analyzes the logic and hidden concerns behind the popularity of bamboo tube milk tea and reminds the industry to pay attention to food safety and quality. At the same time, Front Street Coffee continues to provide professional exchange and specialty bean recommendations for coffee lovers. [more…]