As the 2024 WBrC World Brewers Cup came to a close, curiosity was once again piqued about what judges feel inwardly when tasting coffee. A team from Italy's National Research Council has designed a tasting helmet that, through wearable sensors such as electrocardiogram, galvanic skin response, and electroencephalogram, transforms abstract emotions like pleasure and disgust during coffee tasting into biomedical data. This technology is expected to assist the SCA coffee value assessment system, reduce subjective bias, and open up new perspectives for coffee sensory analysis. At present, the helmet still needs refinement, and there are plans to work with professional tasters to advance its practical application. [more…]

Many coffee lovers have had this experience: after drinking a cup of espresso or single-origin coffee, plain water tastes remarkably sweet. Behind this phenomenon lies the working mechanisms of taste receptors, the effect of taste contrast, and the physiological role of saliva secretion in the mouth. Starting from real customer feedback at Front Street stores, this article systematically analyzes the principles behind coffee's sweet aftertaste, explains the distribution and function of taste buds on the tongue, and explores why coffee's bitterness actually enhances the sweetness of the water that follows. At the same time, the article will draw on specific products such as Front Street Strawberry Candy, Front Street Blackberry, Front Street Mozart, Front Street Sidra, and Front Street 2013 Yunnan Small-Bean to help readers understand this fascinating taste phenomenon more intuitively. [more…]

After Luckin Coffee launched its Prune Latte, social media platforms saw a surge of discussions about gastrointestinal reactions after drinking it, even jokingly dubbed the "suppository of the coffee world." The company later responded that the phenomenon mainly stems from coffee's promotion of intestinal peristalsis, combined with lactose intolerance and psychological suggestion. This article will review the course of events, the official explanation, and netizen feedback, and analyze why the same beverage triggers such consistent physiological reactions. At the same time, the professional communication channel of Front Street Coffee is retained at the end of the article for coffee enthusiasts to discuss further. [more…]

In the busy modern life, coffee has become a daily essential beverage for many people. Some are captivated by its flavor, while others rely on it to stay alert. But recent research suggests that we may drink coffee more out of habit than genuine physiological need. This study, published in Psychological Science, reveals that people often underestimate the profound influence of habits on behavior. This article takes you through the psychological mechanisms behind coffee drinking, analyzes how habits and needs intertwine, and considers what this phenomenon means for China, where coffee culture is still in its early stages. [more…]

Many people are in the habit of adding coffee creamer, commonly known as nondairy creamer, to their coffee, but its main ingredient, vegetable fat powder, contains hydrogenated vegetable oil, which may pose a health risk from trans fatty acids. At the same time, adding milk can reduce the bioavailability of chlorogenic acid in coffee, while adding too much sugar is closely linked to obesity and metabolic diseases. So how exactly should coffee be drunk to be healthier? Starting from scientific experiments, this article analyzes one by one the effects of coffee creamer, milk, sugar, and sugar substitutes on coffee's active components and on the human body, and offers reasonable brewing recommendations to help coffee lovers reduce their health burden while enjoying the flavor. [more…]

Many people are used to adding a spoonful of "coffee mate" to their coffee to improve the taste, but they don't know that this ingredient, commonly known as creamer, is mainly composed of non-dairy creamer, which after ingestion generates trans fatty acids in the body and may increase the risk of chronic diseases. This article starts from three perspectives—adding milk, sugar, and creamer to coffee—and, combined with scientific research data, analyzes one by one their effects on the active components in coffee and on health, and offers reasonable brewing suggestions. Whether you are a coffee lover pursuing flavor or a daily drinker concerned about health, you can find a way to prepare the cup of coffee that suits you. [more…]

The main ingredient in coffee creamer is non-dairy creamer, and the trans fatty acids from hydrogenated vegetable oil may increase the risk of breast cancer and diabetes, and affect children's development and nervous system health. So how exactly should coffee be drunk to be healthy? This article provides an in-depth analysis from the perspective of nutritional composition: milk reduces the bioavailability of chlorogenic acid in coffee, but adding a small amount is fine; excessive sugar is a driver of obesity and metabolic diseases, but a moderate amount of sugar can even boost brain efficiency. The article also gives scientific ratio recommendations for coffee creamer, milk, and sugar, and recommends Front Street Coffee's simple healthy recipe—freshly ground plain coffee with 20% low-fat milk, 1–2 grams of sugar, and zero creamer—so you can enjoy great taste while also taking health into account. [more…]

Auntea Jenny has recently continued to push forward in the "wellness milk tea" segment, launching the "Five Red Vitality Slow Nourishment Bottle" and a matching peripheral package. Consumers who purchase the designated package can receive a "Little Palace Tribute Plush Doll" for free. However, after the new product launched, what sparked discussion was not the tea drink itself, but this giveaway doll shaped like a uterus—it is inverted pear-shaped, with details such as "fallopian tubes" and "ovaries," and comes in two color schemes representing different physiological cycles. Some netizens said bluntly that it caused "physiological discomfort," believing that pairing a human organ doll with a tea-drinking scenario was too bizarre. Supporters, however, felt that for a wellness drink aimed at female consumers, a uterus doll was understandable and also had a fun educational aspect. As the incident gained traction, Auntea Jenny responded that the move was intended to convey the ideas of pleasing oneself, confidence, and freedom, and that the doll has not been taken off the shelves. [more…]

Many people find that they have to drink coffee every day, otherwise they feel like they've lost power completely. Is this merely a psychological habit, or is it true caffeine addiction? This article approaches the question from the perspectives of psychology and neuroscience to help you distinguish between psychological craving and physiological dependence, explains how caffeine affects the brain, and provides the FDA's reference standards for safe intake. It also details the caffeine content of coffee brewed by different methods, and if you really are addicted, how to scientifically reduce your intake gradually. Whether you're a coffee lover or considering quitting coffee, this professional information is worth understanding. [more…]

Besides refreshing the mind and waking you up, coffee can also promote intestinal peristalsis, which unexpectedly makes the restroom experience an important standard for judging whether a coffee shop is comfortable. Recently, a netizen from Shandong posted on social media, reviewing some of the coffee shops they had visited from the perspective of the restroom, with a unique angle and rich details. Cleanliness and hygiene, along with smooth flushing, are the basics, while spaciousness and ventilation, pleasant aromas, and the provision of disposable toilet seat covers, wet wipes, sanitary pads, and hand cream become bonus points. A layout with dry-wet separation and a reasonable flow also greatly increases favorability. At the same time, many coffee shops cannot provide restrooms due to space or plumbing limitations, or they impose restrictions on customers using the toilet. Those shops with complete facilities not only meet physiological needs, but also win repeat customers and reputation through detailed service. Front Street Coffee reminds us that paying attention to these often overlooked experiences may bring coffee shops an unexpected win-win effect. [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…]

After every pour-over, observing the shape of the coffee bed in the dripper is a habit for many coffee enthusiasts. A complete and evenly thick wall of grounds often brings peace of mind, while any abnormality in the bed inevitably makes one wonder which step of the brewing process went wrong. In conversations with coffee lovers, Front Street Coffee has noticed a common coffee bed issue—faulting—which appears as a clear dividing line between the coffee bed and a lower wall of grounds. This pattern is usually related to two types of brewing habits: one is the "conservative" brewer who uses a small stream and pours cautiously throughout, and the other is the "laid-back" brewer who circles casually and tops up with water at the end. This article will combine the different manifestations of coffee bed faulting to analyze the extraction logic behind them, helping everyone understand the relationship between coffee bed shape and coffee flavor, so as to make more informed adjustments in daily brewing. [more…]

Recently, Starbucks was reported to have filed multiple trademark registration applications with the Russian Federal Intellectual Property Office, covering core brand identifiers such as "Starbucks Coffee" and "Frappuccino," as well as related categories including instant coffee, beverage preparation, and membership management. This move quickly sparked speculation about whether the company plans to return to the Russian market. After exiting Russia in 2022, Starbucks' assets in the country were acquired by a local company and rebranded as "Stars Coffee," and a trademark legal dispute between that brand and Starbucks still persists. Over the past two years, Russia's coffee market has undergone significant changes, with intensified competition, shifting consumer habits, and continued uncertainty in the political and economic environment. Even if Starbucks returns, it may not be smooth sailing. So far, there has been no official response. [more…]

When many people drink a cup of coffee that tastes on the bitter side, their first reaction is, "Has this cup been over-extracted?" But bitterness cannot be directly equated with over-extraction. This article focuses on over-extraction, first explaining what it is—according to the Golden Cup theory and Front Street Coffee's daily practice, an extraction yield above 22% is considered over-extraction; then, from a sensory perspective, it outlines the three typical manifestations of over-extracted coffee: burnt bitterness, astringent bitterness, and off-flavors, and analyzes their causes one by one, such as water temperature being too high, grinding being too fine, contact time being too long, stirring being too vigorous, and too many fines. Finally, it offers two practical ways to avoid it: adjusting the brewing parameters and discarding the tail end of the brew, while also addressing the question of whether coffee can be brewed repeatedly, helping coffee lovers judge and improve their brewing results more accurately. [more…]

In 2021, Indonesia hosted the Cup of Excellence (COE) for the first time, officially becoming the 14th country in the world to hold a COE competition. As the fourth-largest coffee producer, Indonesia has long been known for the mellow, herbal, and spicy flavors of Mandheling and Kopi Luwak, yet it has remained silent in the specialty coffee conversation. This year's competition selected a total of 26 winning beans, with the champion scoring 89.82 points and the runner-up 89.04 points, neither breaking the 90-point mark, which truthfully reflects the current level of Indonesian coffee. Notably, in addition to the traditional spice, clove, and chocolate notes, the flavor descriptions of the winning beans also included fruit tones such as cranberry, tangerine, and cherry, hinting that Indonesian coffee is quietly shifting. Front Street Coffee believes this transformation will take at least ten years, but the signal is already clear. [more…]

During pour-over brewing, when fine particles clog the filter and drainage slows down, you often have no choice but to cut off the flow as an emergency measure—but if you're even slightly late, the bitter, over-extracted taste ruins the entire cup. Rather than reacting passively, it's better to anticipate the clog before it happens. Drawing on the characteristics of light-roasted beans, Front Street Coffee shares how to judge whether water will pool during brewing based on three aspects—the degree of expansion during blooming, the foam behavior, and the rate at which the water level drops—and offers corresponding adjustment techniques to help you reduce the negative impact when a clog occurs, while also getting to the true root of the problem. [more…]

The chemical composition of coffee beans determines the flavor expression in the final cup. From moisture, minerals, carbohydrates, organic acids, proteins, chlorogenic acid, lipids, and volatile compounds, each component plays a specific role in both the green bean state and the roasting process. Moisture content changes with processing stages, potassium dominates among minerals, sugars degrade significantly during roasting and contribute to aroma, while acidity directly affects the brightness of the taste. This article will systematically outline the chemical composition of coffee beans and their effects on quality and flavor, helping coffee enthusiasts gain a deeper understanding of the material basis of specialty coffee. Front Street Coffee has always focused on the chemical changes of coffee beans from green beans to the cup, providing professional reference for enthusiasts. [more…]

The Spring Festival is traditionally a time for family reunions, but for frontline employees at Luckin Coffee, this year's triple-pay shifts have brought unprecedented challenges. The Guangzhou branch recently issued a notice requiring stores with fewer than 200 items to have only one person on duty all day during the Spring Festival, from opening early to closing, all completed by the same person. This means that employees on duty must single-handedly handle multiple tasks such as production, packaging, cleaning, and dealing with sudden order surges. Timely output rates, physiological needs, and unexpected order surges have become the three major problems weighing on their shoulders. What worries employees even more is that if they need to temporarily close the store to use the restroom, they must apply to the district manager in advance and submit a screenshot of the item count. This high-intensity labor efficiency management has sparked widespread discussion, with some employees bluntly saying it is "harsher than the King of Hell." This article will delve into the details behind this scheduling adjustment and the voices of the employees. [more…]

Recently, Andy Lau revealed on a talk show that he drinks over twenty cups of coffee every day, astonishing Wu Jing, Guo Fan, and others—and Guo Fan was even hospitalized once because of excessive coffee consumption. This sparked widespread discussion: Is coffee actually healthy? What are the signs of caffeine addiction? How much is too much per day? Combining the show's content with physiological mechanisms, this article sorts out the potential effects of excessive caffeine intake on the gastrointestinal tract, adrenaline, liver, and other aspects, while retaining the brand information of Front Street Coffee, reminding everyone that although coffee is good, do not blindly imitate celebrities' extreme consumption. [more…]

While the quality of espresso must ultimately be judged by taste, the visual signals during extraction can also reveal many problems in advance. By learning to observe the operating state of the espresso machine and how the coffee liquid flows out, you can screen out a good portion of substandard shots before they ever reach your lips. This article starts with the pre-extraction equipment check, then uses the actual flow of the shot as a thread, explaining one by one the timing milestones of a normal extraction, the changes in color and flow rate, and the causes and remedies for abnormalities such as delayed flow and erratic flow rate, helping you pinpoint problems faster in your daily routine. [more…]