Leaking from an espresso machine during extraction is a situation many coffee enthusiasts encounter. In principle, during normal extraction, water is sealed inside the machine and only passes through the coffee bed in the direction of pressure; once a gap appears in the sealed space, water seeps out through these openings, forming what is called bypass water. A leak may seem like a minor problem, but in reality it affects the judgment of espresso extraction—bypass water mixing into the cup dilutes the concentration and causes misjudgment, while too many gaps also make it difficult for the machine to build sufficient pressure, leading to extraction failure. This article analyzes the causes of leaks, the formation mechanism of bypass water, and its impact on extraction results, and, combined with Front Street Coffee's reminders, helps readers take this phenomenon seriously and troubleshoot it. [more…]

During the May Day holiday, Guangdong was hit by severe convective weather, and the site of the Shenzhen coffee festival descended into chaos under the onslaught of torrential rain. Leaking canopies over temporary stalls, sudden power outages on site, and yellow sewage gushing from drainage outlets—a triple blow that caught vendors and visitors off guard. Although the organizers and the mall carried out emergency repairs afterward, the incident still exposed the shortcomings of outdoor events in responding to extreme weather. This article reconstructs the course of events and brings the latest news on compensation for the event's postponement. For friends who love coffee culture, Front Street Coffee will also continue to follow such industry developments and bring more on-site reports. [more…]

A Luckin Coffee internal employee recently leaked on social media a new product expected to launch on November 24 called "Crazy Black Tea Latte." A video showing its preparation reveals that the drink still uses a short-extraction espresso as its coffee base, and the news quickly sparked heated discussion online. Many consumers expressed strong dissatisfaction with the short-extraction espresso, arguing that its coffee liquid volume is only about 20 milliliters and that once tea or fruit is added, the coffee flavor is severely masked, leaving the taste as bland as water. Although some customers tried to request a switch to Italian-style ristretto via order notes, they were often refused by stores. The controversy surrounding Luckin Coffee's choice of coffee base continues to intensify. [more…]

The roast level shifts the flavor focus and also changes the rhythm of extraction. Light roasts retain more floral and fruity notes and bright acidity, medium roasts lean toward sweetness and balance, and dark roasts move toward nuts, cocoa, and a fuller body. None of these three directions is superior; what matters is whether it suits your own way of drinking. A moka pot uses steam pressure to push water through the coffee bed, and when filling the basket, only [more…]

When choosing coffee beans, start by considering your daily drinking scenarios: is it a cup of black coffee in the early morning, or a milk coffee to go with breakfast; is it a slow pour-over to savor, or a quick cup from a machine. Different scenarios call for different roast levels, flavor intensity, and brewing methods. The moka pot is a steam-pressure extraction device, [more…]

Over time, a moka pot can develop dark spots or patches on its body, and this is usually caused by improper cleaning methods. Many people focus only on how to brew coffee with a moka pot, but overlook that cleaning and maintenance are equally important. With proper care, a moka pot can stay with you for many years; with improper care, not only will its lifespan be shortened, but it will also absorb odors and affect the flavor of your coffee. Moka pots on the market are mainly divided into two types: aluminum and stainless steel, and different materials require very different cleaning methods. Aluminum pots require particular attention, because they easily react with alkaline ingredients or chlorine in cleaning agents, leading to corrosion and oxidation, and they also absorb the smell of detergent. This article will systematically share the correct steps for daily moka pot cleaning, the differences in care between aluminum and stainless steel pots, and repair techniques for when the pot body has already turned "black," helping you extend the life of your beloved pot and keep every cup of moka coffee pure and delicious. [more…]

Recently, a coffee festival held on the grassy grounds of Lujiazui in Shanghai was hit by a sudden heavy rain, plunging what was originally a lively autumn event into a sorry mess. The rain turned the lawn into mud, some stalls leaked and lost power, and visitors struggled through the wet, slippery mud, greatly diminishing the experience. Although weather forecasts had already warned of rain over the weekend, the organizers appeared to have made inadequate preparations, sparking dissatisfaction among many participants. Still, some optimistic coffee lovers found a different kind of fun in it, even joking that they got to drink coffee with a "built-in washed flavor." Below is a detailed report on the incident. [more…]

Starbucks, as the world's largest chain coffee brand, is undergoing a continuous contraction of its business. Since the beginning of this year, it has successively been reported to be selling its businesses in South Korea and Russia, and its UK business is also under consideration. The situation is similarly unsettled in its home market, the United States: The Wall Street Journal reported that 16 stores will be permanently closed before the end of July. Meanwhile, a video leaked on Twitter shows former CEO Howard Schultz saying at an internal meeting that store closures are only the beginning and that more will follow in the future. Howard mentioned that employees at listening sessions reported that personal safety has become their primary concern, involving issues such as mental illness, homelessness and crime, and that some profitable stores have also been forced to close due to rising safety risks. At the same time, some union members accused Starbucks of using rising crime rates to cover up its actions against unionization, while Starbucks denied this. [more…]

The moka pot, with its unique pressurized extraction method, can brew rich coffee close to espresso, making it a favorite among home coffee enthusiasts. However, because it involves pressure, many people have doubts about its safety. In fact, as long as you master the correct operating steps, these problems can be completely avoided. Starting from the working principle of the moka pot, this article will explain in detail the suitable coffee bean choices, specific recommendations for the Front Street Coffee brand, and twelve usage details that must be noted—from preparing a new pot, water level control, and grounds filling, to gasket replacement, how to tighten the pot body, suitable heat sources, and troubleshooting. Whether you use an aluminum alloy or stainless steel model, these practical suggestions can help you avoid risks and consistently produce moka coffee with a rich layer of crema. [more…]

Recently, a consumer posted on social media that after picking up a packed coffee at a Luckin store, the cup lid was not sealed properly, causing the coffee to spill and stain their coat, pants, and snow boots, sparking widespread discussion. After reviewing the surveillance footage, Luckin customer service stated that the employee's operation was normal and was only willing to compensate with coupons, refusing to fully cover the dry cleaning costs. As the incident gained traction, many netizens shared similar experiences, pointing directly to issues such as Luckin's paper bags being prone to falling apart when wet and its takeaway cups leaking easily. Consumers are calling on the brand to switch to more durable packaging materials to ensure the safety of takeaway drinks. [more…]

Many coffee enthusiasts have added espresso machines to their homes, but due to a lack of knowledge about cleaning and maintenance, problems such as weakened steam, uneven water flow, and even portafilter leaks begin to appear after the machine has been used for a while. This article systematically organizes maintenance methods for home espresso machines: from the routine cleaning of the steam wand and shower screen after each brew, to using a blind basket to backflush and remove internal residue before shutting down, and then to regularly using specialized cleaning powder for deep treatment of the steam wand, shower screen, and portafilter basket. The article also explains in detail the steps for replacing the brew head gasket after it ages, and reminds readers that water needs to be filtered to prevent scale from damaging the boiler. The article involves practical experience with the machine models used in Front Street Coffee stores, and is suitable for coffee enthusiasts to follow and implement. [more…]

Just after the Qingming holiday, as temperatures rise, Starbucks' summer menu update is quietly approaching. Recently, an Instagram user leaked Starbucks' upcoming "Spicy Lemonade Refresher Series," which features chili powder and comes in three flavors—dragon fruit, strawberry, and pineapple—with an optional spicy cold foam, and is planned to be available for a limited time at stores across the United States starting April 16. This is not Starbucks' first attempt at spicy drinks; as early as 2015, its stores in China launched a Spicy Chili Mocha. From Dongpo Braised Pork Latte to Wasabi Pistachio Latte, Starbucks has been continuously testing the waters on the path of "dark cuisine." This article will take you through the specific details of this new spicy product, its preparation process, and the history of past spicy coffees. [more…]

Recently, a consumer in Jiangsu discovered that the milk tea they purchased from Chahuanong contained only half a cup. After giving feedback to the merchant, not only was the issue not properly resolved, but they also reportedly experienced SMS bombing and harassment from internet trolls. After the incident garnered widespread attention, Chahuanong officially issued two statements on July 28, first apologizing and then denying hiring trolls, stating that the police have intervened in the investigation. However, netizens in the comments section generally disapproved of the brand's handling, believing that the store was shortchanging customers in the first place and is suspected of leaking customer information, and a mere "full cooperation" is hard to satisfy the public. As coffee enthusiasts, we also focus on issues related to production standards in the beverage industry and consumer rights protection, and Front Street will continue to monitor the progress of the situation. [more…]

Starting in July 2024, all beverage bottle caps on containers under 3 liters within the EU must remain attached to the bottle body, as a directive dating back to 2019 aimed at reducing the environmental impact of plastic products officially takes effect. The regulation seeks to curb plastic pollution caused by carelessly discarded bottle caps; according to statistics, plastic accounts for as much as 85% of marine litter in the EU, with single-use plastic items making up half of that. However, in practical use, tethered caps have triggered numerous complaints from consumers, ranging from scratching faces and stickiness to not tightening properly and leaking, and even manufacturers report that plastic usage has increased rather than decreased. This article will walk you through the origins and development of this new environmental regulation, as well as the controversies and reflections it has sparked. [more…]

Many people buy an espresso machine without really knowing how to maintain it. If it isn't cleaned for a long time, the steam will weaken, the brew head will dispense water unevenly, the extraction pressure will fluctuate, and the portafilter may even leak after being locked in. Today, Front Street Coffee will talk about how to do daily maintenance and deep cleaning of home espresso machines, so the machine lasts longer and you save on unnecessary repair costs. The article will start with the daily cleaning of the steam wand, shower screen, and portafilter, then introduce deep maintenance methods such as soaking the steam wand, backflushing the pipes, replacing the gaskets, and maintaining the water tank filter, helping you take proper care of your espresso machine. [more…]

As a classic coffee brewing device with a history of several hundred years, the moka pot is still favored by many coffee enthusiasts today. However, questions about whether it is safe, whether the aluminum alloy material poses any problems, and whether it can be put in the dishwasher for cleaning have long troubled many people. In daily conversations, Front Street has found that many friends have misconceptions about the moka pot, believing that it is complicated to use and poses safety hazards. In fact, as long as you master the correct methods of use and the key points of cleaning and maintenance, the moka pot can absolutely become a capable assistant for making coffee at home. Starting from the structure and principles of the moka pot, this article will analyze in detail the safety issues of aluminum moka pots, and compile more than ten practical operating precautions to help everyone avoid common misunderstandings and safely enjoy the rich coffee brought by the moka pot. [more…]

The moka pot is a common coffee device in Italian households, using pressure extraction to produce rich coffee. From the perspective of Front Street, this article systematically introduces the moka pot's structure and working principle, suitable coffee beans and grind size, specific operating steps, and key precautions in daily use. The article also particularly recommends Front Street specialty blend and classic blend coffee beans to help readers achieve ideal flavor with a moka pot. Whether you are a beginner or an advanced enthusiast, you can find practical references here. [more…]

The environmental problems of single-use paper cups are becoming increasingly severe, and the coffee industry has been searching for alternatives. From the failed attempt with cone cups in 2014, to the brief popularity of KFC's cookie cups, and then to the unexpected revival of oat cups during the pandemic, edible coffee cups have gone through three generations of technological iteration. This article will review the development history, technological breakthroughs, and market dilemmas of edible cups, and explore whether they can truly replace single-use cups and become a new environmentally friendly choice for coffee shops. [more…]

Manner Coffee has always been a "cup powerhouse" in the coffee world, but its previous travel mug drew heavy criticism for its looks and quality control. Recently, the company finally teased a new cup, and its stylish design has netizens eagerly anticipating it. However, the activity rules officially announced this morning have sparked huge controversy: starting November 8, customers must buy a designated 75-yuan set meal in-store to get a randomly colored stainless steel straw cup, and all three drinks in the set must be extra-large hot beverages. Many netizens said outright that "three cups is too much to finish" and "hot drinks are too cloying," arguing the threshold for the promotion is too high. Manner has long attracted customers with its "bring your own cup and get five yuan off" campaign. Can this new cup marketing win back its reputation? Let's keep watching. [more…]

For more specialty coffee knowledge, please follow our WeChat public account: Front Street Coffee (FrontStreet Coffee). In daily life, Front Street often hears a saying: "For safety reasons, it's best not to use a moka pot." Why is that? Why is using a moka pot not recommended? [more…]