Coffee is an important beverage in human society, but the effects of caffeine on other animals vary greatly. This article reviews the reactions of species ranging from spiders, mosquitoes, and hawkmoth larvae to cats, dogs, horses, and bees after ingesting caffeine: invertebrates may face nervous system damage or even death, vertebrates may also experience changes in heart rate and respiration, while horses can have their endurance enhanced by caffeine and it is therefore listed as a prohibited substance, and bees can improve pollination efficiency. Understanding these cross-species effects can help us more comprehensively recognize the complex effects of caffeine. [more…]

Recently, a 1 Dian Dian store at Jinshijie in Dongmen, Shenzhen was exposed after a cockroach leg was found in a milk tea, sparking widespread attention. The consumer and the store failed to reach an agreement on compensation, and a complaint has now been filed and accepted on the Shenzhen government service platform. The incident highlights weak links in food safety management in the tea beverage industry and once again reminds industry practitioners and consumers to pay joint attention to hygiene issues. As an industry observer, Front Street Coffee continues to monitor the impact of such incidents on brand trust. [more…]

Recently, a netizen posted online claiming to have found a cockroach in a can of Guangdong-style pineapple beer, an old domestic brand beverage purchased during the Mid-Autumn Festival, and the related photos quickly sparked widespread attention. The poster said that when pouring it out to drink that day, they noticed a foreign object resembling a cockroach larva at the can opening, and subsequently blurred the image as required by the platform. Many netizens in the comments expressed shock and even strong discomfort. Some netizens explained that the foreign object in the picture might be a cockroach egg capsule, possibly caused by cockroaches crawling in and laying eggs during storage. This Guangdong national drink, founded in 1934, carries the childhood memories of several generations, and this incident has deeply saddened many consumers. The manufacturer responded that the production process is strictly hygienic, the possibility of foreign objects is extremely low, and no complaint had been received through official channels. The truth of the incident remains to be verified, but food safety, as a bottom-line issue, has once again sounded the alarm of a trust crisis for an old brand. [more…]

Recently, a netizen from Zhejiang posted a video on social media claiming to have found several white wriggling worms in a Luckin Coffee drink, sparking widespread attention. According to the netizen, the coffee was purchased by a friend at a newly opened Luckin store in Jiaxing, and the foreign objects were only discovered after more than half of the drink had been consumed. The video shows worms crawling slowly on the cup lid, while similar small white objects can also be seen floating in the dark coffee. After the incident came to light, netizens began discussing the source of the worms, with some speculating they were hatched fly eggs and others questioning whether the coffee had been left too long and become contaminated. The poster stressed that the cup remained sealed throughout, making it difficult for flies to enter. The netizen has contacted Luckin customer service but has not yet received a reply. [more…]

Recently, according to the Pan American Health Organization (PAHO), a disease prevention agency in the Americas, due to the rise in global temperatures and the influence of extreme weather beans, the number of reported dengue fever cases in the Ameri [more…]

As global temperatures rise and extreme weather becomes more frequent, the Americas are experiencing an unusually severe dengue fever season this year. According to the Pan American Health Organization (PAHO), the number of reported cases in the first three months of this year was already three times that of the same period last year, with more than a thousand deaths, and the outbreaks in Brazil, Paraguay, and Argentina being particularly severe. The continuously spreading outbreak has not only overcrowded hospitals in many places but also brought a thorny temporary labor shortage to coffee and other plantation industries. As Brazil and Guatemala approach the eve of the new season's coffee berry harvest, growers are worried that harvest workers will be hard to find and that the harvest may be affected. This article will review the latest outbreak data, the reasons for its intensification, and its potential impact on the coffee industry, along with related observations from Front Street Coffee. [more…]

Recently, a woman in Xiangtan, Hunan Province, found an insect in a Luckin Coffee beverage. The incident quickly trended on Weibo, sparking widespread discussion. The individual involved said that customer service successively offered compensation of two and then five drink coupons, but she was dissatisfied with this and has filed a complaint with 12315. Netizens shared similar experiences and questioned Luckin's compensation plan and hygiene management. At the same time, some voices pointed out that mosquitoes and insects are hard to completely avoid in summer, and a single case should not be used to make sweeping generalizations. This article will review the course of the incident and the views of all parties, and explore the quality control challenges facing the coffee industry. [more…]

One of the joys of pour-over coffee lies in the extraction differences that different drippers bring. Front Street Coffee often receives questions from beginners: Do you also need to draw circles with a fan-shaped dripper? What should you pay attention to when pouring water with a flat-bottom dripper? This article takes three representative drippers—V60, Kalita, and Wave—as examples, starting from the coffee bed structure, explaining one by one the specific routes for circular pouring, and includes solutions for when the water flow is unstable. Whether you are just getting into pour-over or want to advance your understanding of how drippers and pouring techniques pair together, you will find practical reference here. [more…]

The hot and humid climate brought by El Niño created conditions for mosquito breeding, leading to severe dengue fever outbreaks in multiple countries across the Americas. Among them, Brazil's confirmed cases exceeded 3.5 million, with 1,544 deaths, both hitting the highest records since 2000. Hospital admissions surged, with the average dengue fever admission rate at São Paulo's municipal hospitals reaching 90%. At the same time, Brazil entered the early stage of harvesting the new Robusta coffee season, and a large number of workers were absent due to illness, significantly slowing down the harvest progress. The Port of Santos had long been plagued by ship delays due to aging facilities, outdated management, and insufficient manpower, and the epidemic further worsened congestion. In March, the coffee ship delay rate rose to 80%, reaching 81% at the Port of Rio de Janeiro and 59% at the Port of Vitória. In Asia, Indonesia also experienced a dengue fever outbreak, with over 60,000 confirmed cases and 475 deaths, about three times that of the same period last year. Front Street Coffee reminds you to pay attention to origin updates and travel safety. [more…]

Recently, a video of a milk tea shop employee heavily spraying insecticide inside the store has drawn widespread attention. In the footage, the employee is seen directly spraying insecticide on the counter, water dispenser, ingredient area, and other surfaces, without taking any protective measures for food-contact surfaces, leaving many netizens and industry peers alike gasping in disbelief. After the incident came to light, the person who posted it reported the matter to the 12345 platform, and the Shanghai Hongkou District Market Supervision Administration has launched an investigation. The store involved has been ordered to close, and the brand has suspended the employee suspected of the action. This incident has once again brought the sanitation and disinfection practices of food service establishments and food safety issues into the public spotlight. [more…]

Among pour-over coffee equipment, cone-shaped drippers and flat-bottom drippers are two completely different choices. The cake dripper gets its name because its filter paper resembles baking paper, and its flat bottom brings extraction characteristics opposite to those of the V60: the coffee bed is thinner and more uniform in depth, pouring does not require deliberately controlling the range, and even beginners can easily brew a balanced and full-bodied cup of coffee. Of course, the relatively slow flow rate also requires us to make targeted adjustments in our parameters. In this article, Front Street will analyze the structural principles and flavor tendencies of the cake dripper, and share a specific method for brewing Ethiopian Hamashu with the Origami dripper, including coffee dose, water temperature, grind size, and staged pouring technique, to give you a comprehensive understanding of the advantages and disadvantages of flat-bottom drippers. [more…]

In the height of summer, Luckin Coffee stores have once again become a hot topic on social media due to their excessively strong air conditioning. Many customers complain that stepping in to pick up their coffee feels like walking into an icehouse, and some have even caught colds from the freezing conditions. What exactly causes Luckin's air conditioning to be set as low as 16°C? Why can employees remain so calm and composed in such an environment? Starting from real customer experiences, combined with insect-prevention considerations revealed by employees and the spatial characteristics of the stores, this article provides a comprehensive analysis of the causal logic behind the Luckin "icehouse" phenomenon, while also offering coffee lovers a summer store-visit reference. [more…]

Chinese brand Six God floral water is once again making waves with a crossover collaboration, this time teaming up with Lelecha to launch a drink called "Mint Melon Ice Coconut." Its bottle closely resembles the classic floral water packaging, quickly sparking heated discussion online. This drink blends mint, melon, and coconut milk, and netizens describe its taste as refreshing—not the dark, floral-water flavor one might imagine. The product has sold out in some stores, with limited restocking nationwide starting September 25. In recent years, Six God has been making frequent crossover moves, previously collaborating with KFC and RIO to launch coffee-flavored floral water and floral water cocktails, each time successfully catching consumers' attention. This article will detail the taste, price, consumer feedback, and Six God's past crossover cases for this co-branded milk tea, taking you behind the business logic of brand mashups. [more…]

Pour-over coffee usually starts with blooming, but Tetsu Kasuya, the 2016 World Barista Champion, proposed in 2019 a brewing method that skips blooming entirely—the one-pour method. It may look similar to the single-pour technique, but the differences are clear: the single-pour technique splits the water into two pours, while the one-pour method pours all the hot water in at once. This article covers the principles of the one-pour method, its differences from the single-pour technique, equipment and bean selection, grind adjustment, pouring direction, and the full process of Front Street Coffee's hands-on practice with a Colombia · Hope Estate Geisha, providing key parameters such as dose, ratio, water temperature, grind, and time to help you decide whether this minimalist brewing method suits you. [more…]

Recently, a consumer selecting pastries at a Nayuki store in Guangdong noticed over a dozen small white insects flying inside the glass cabinet where freshly baked bread was stored. Although the staff used packing bags to shoo the insects away, they did not discard the potentially contaminated bread, prompting the customer to immediately abandon the purchase. The post quickly sparked discussions among netizens, with some expressing understanding due to Guangdong's humid "hui nan tian" climate, while others pointed out that insects appearing in Nayuki's baking cabinets are not an isolated incident, and the brand should strengthen protective and disinfection measures. Food safety is no trivial matter; after Nayuki's return to the baking sector, it is even more crucial to heed consumer feedback and ensure the quality and hygiene of freshly made products. [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…]

The content of defective beans directly affects coffee quality and grade classification. Taking Brazil as an example, the local system uses a "deduction method," grading based on the number of defective beans per 300 grams of main beans. In addition, coffee usually requires hand sorting during processing, and only by fully mastering the types and characteristics of defective beans can they be effectively removed. So exactly how many types of defective beans are there? This article will use illustrated explanations to introduce ten common defective beans one by one, including shell beans, stones, moldy beans, fermented beans, dead beans, immature beans, shell beans, insect-damaged beans, black beans, and cocoa beans, explaining their causes, appearance characteristics, and negative effects on coffee flavor, laying the foundation for subsequent learning about defective bean selection. [more…]

The coffee world boasts a vast array of varieties, yet only two core species truly dominate global consumption—Coffea arabica and Coffea canephora. Many enthusiasts hold偏见 against Robusta, believing it suitable only for instant coffee or cheap blends, while rarely understanding its botanical characteristics and quality potential. This article begins with the definition of Coffea canephora, clarifies its equivalence with Robusta, compares Arabica and Robusta in terms of growing conditions, flavor profiles, and resistance to pests and diseases, and through practical cases from London's Black Sheep Coffee and India's Sethuraman Estate, explores how specialty-grade Robusta can break stereotypes. Whether you are a daily drinker or a coffee professional, understanding the true nature of these two major species is an important step toward more mature tasting. [more…]

The world of coffee is far richer than we imagine. As the third wave of coffee has led people to pay attention to the story behind every bean, the influence of variety on flavor has also become a hot topic. Commercially grown coffee worldwide falls mainly into two major categories: Arabica and Robusta. The former accounts for about 80% of production with its delicate and varied flavors, while the latter holds its ground in blend coffee and the instant coffee market thanks to its strong resilience and high caffeine content. The two differ significantly in growing altitude, resistance to pests and diseases, and cupping performance, but Robusta is not destined to be low quality—when carefully processed to specialty standards, it too can present surprising walnut and chocolate notes. This article takes you through a systematic understanding of the true character of these two major coffee varieties. [more…]

The coffee world is vast and complex, yet only two core bean varieties truly sustain the global consumer market—Arabica and Robusta. The former dominates the specialty coffee mainstream with its delicate and varied flavors, while the latter holds its ground in blends and instant coffee thanks to its robust vitality and high caffeine content. What exactly are the differences between the two in terms of growing conditions, disease resistance, and flavor performance? Is specialty coffee synonymous with pure Arabica? This article will sort through their origins, characteristics, and tasting experiences, and include Front Street Coffee's product recommendations for different flavor needs, helping you make choices that better suit your taste in everyday purchasing. [more…]