Have you ever noticed a layer of black fine particles settling at the bottom of your espresso shot? This is actually a common phenomenon caused by ultra-fine coffee grinds. Many people worry whether it indicates a malfunctioning machine or a problem with coffee quality. This article delves into the source of these black particles, whether they affect health, and practical concerns such as whether the portafilter may deform under high pressure. It also analyzes the actual particle size of ultra-fine grinds to help you gain a more comprehensive understanding of espresso extraction basics. [more…]

Have you ever noticed that even when using the same coffee beans, the same grind setting, and the same dose, the extraction flow rate of your espresso sometimes speeds up or slows down unpredictably? More often than not, this isn't a technical issue, but rather a result of several frequently overlooked variables. This article will delve into the effects of tamping vs. no tamping, changes in coffee particle size due to rising burr temperature, and potential interference when the espresso machine boiler is handling multiple tasks simultaneously — helping you identify the real cause of unstable extractions and improve every shot. [more…]

In recent years, an instant black coffee called PH Coffee has rapidly gained popularity after being spotted in the hands of celebrities, earning the label of a "Korean weight management brand." However, further investigation reveals that the product is not sold in Korea at all—it is actually a China-Korea joint venture and is produced and sold exclusively in China. This article dissects the reasons behind its viral success, the truth about its origin, and its marketing strategy, helping consumers understand the reality behind this trending product. [more…]

A coffee shop in Shunde, Guangzhou, recently launched an iced Americano special drink featuring deep-fried cicadas, sparking heated online discussions. This creative beverage, which combines traditional wild game with modern coffee culture, not only delivers a visual shock with its appearance but also raises concerns about food safety and allergy risks. This article delves into the story behind this summer-limited drink and provides important precautions to consider before trying it. [more…]

Explore the essence of Mexican coffee, from the unique geography and climate of Veracruz to the backstory of how La Perla Farm claimed the 2024 Mexico COE Washed Category Championship. This article takes you deep into this coffee sanctuary that nurtures premium Bourbons, Geishas, SL28s, and Pacamaras, analyzing its exceptional terroir and masterful cultivation techniques — an essential read for coffee enthusiasts and origin explorers alike. [more…]

As the world’s largest coffee producer, Brazil has recently experienced an exceptionally severe drought in its central regions, with over 3,000 cities facing water shortages, more than a thousand of which are suffering from extreme drought. This article provides an in-depth analysis of the actual impact of the drought on agricultural crops such as coffee, including abnormal rainfall patterns in growing regions, river water level crises, and the ongoing threat posed by the potential return of La Niña. It also explores trends in international coffee market prices, helping readers stay updated on the latest regional developments and market changes. [more…]

Milk cold brew (Milk Brew) is an innovative coffee brewing method that has emerged in recent years. It uses milk instead of water as the brewing medium to create a latte with a smooth and layered flavor profile. This article delves into the principles of low-temperature, long-duration steeping, introduces suitable types of coffee beans, recommends a coffee-to-milk ratio of 1:10 to 1:13, and provides two practical methods using drip bags and tea infusers—making it easy for you to brew a rich and aromatic milk steeped latte at home. [more…]

Luckin Coffee's Q2 2024 financial report shows total net revenue reached 8.403 billion yuan, with the number of stores approaching 20,000, yet same-store sales at company-operated stores dropped by 20.9% year-on-year. Starbucks China also faces a challenge with a 14% decline in same-store sales. This article delves into the profit pressures behind the price war, explores how brands can seek breakthroughs in fierce competition, and reveals the current challenges and transformation directions facing the coffee industry. [more…]

A service dispute at a café in Guia Hill, Macau recently escalated into a criminal case involving knife threats, where the shop owner was assaulted by a customer and then threatened with a fruit knife. This article provides an in-depth analysis of the incident, explores common risks faced by coffee professionals when dealing with customer conflicts, and offers practical self-protection strategies, along with essential workplace safety guidelines the industry must pay attention to. [more…]

In July 2024, Ethiopia launched a foreign exchange system reform, causing its national currency, the Birr, to depreciate by nearly 30% in a single day. This policy not only reshaped the country’s monetary system but also had profound impacts on the global coffee supply chain. This article delves into the reasons behind the exchange rate adjustment, market reactions, and how it will affect the export prices and international competitiveness of Ethiopian coffee. [more…]

Ecuador’s Pichincha Province produces distinctive specialty coffee thanks to its high-altitude volcanic soils, with the Sidra variety emerging as a highlight in recent COE competitions. This article delves into the region’s geographic advantages, climate conditions, and representative estates, guiding you to appreciate the flavors of Andean volcanic coffee through its terroir. It also offers practical bean selection and brewing tips. [more…]

Is the flavor of your pour over coffee always inconsistent? Even when you follow the instructions step by step, you just can't hit that ideal taste? In fact, water temperature, coffee-to-water ratio, grind size, and pouring technique are the four key elements that affect extraction. This article delves into how these variables influence the coffee's strength, sweet-sour balance, and the release of unwanted compounds, helping you identify the right adjustments to consistently brew a well-balanced pour over. [more…]

A consumer in Jiangsu province purchased a milk tea from Chahuangnong, only to find that the drink received was only half full. After providing feedback, they allegedly suffered from a text message bombardment and online troll harassment by the business. Although the brand issued two statements, it failed to quell the public outcry. This article provides an in-depth analysis of the incident and explores product standards in the beverage industry as well as key points on consumer rights protection, so you can enjoy a great drink while safeguarding your own rights. [more…]

Luckin Coffee has recently implemented an “all-item QR code scanning” store-closing procedure, requiring employees to scan all materials with expiration labels individually fifteen minutes before closing, and repeat the process the next morning by the early shift. This has led to a surge in workload for frontline staff, with unpaid overtime becoming the norm. Coupled with frequent system recognition failures, what was originally a digital measure to manage material shelf life has instead become a focal point of controversy. This article delves into the actual execution details of the new policy and first-hand feedback. [more…]

If you've noticed that the steam from your espresso machine is getting weaker—leading to less efficient milk frothing and coarser foam texture—it's likely due to a clogged steam wand tip. This article takes an in-depth look at the real reasons behind weakened steam, helps you understand how milk residue affects steam output at its root, and provides detailed steps for unclogging the wand tip, soaking and cleaning methods, as well as essential maintenance tips you shouldn’t overlook in daily use. All this will help you easily restore your machine’s strong steam power and consistently produce fine, velvety milk foam. [more…]

There is a wide variety of espresso-based coffee drinks, from classic espresso to Dirty, and on to thick-milk coffee beverages. Each type has its own unique brewing process and flavor profile. However, if not consumed properly, you might miss out on experiencing their full essence. This article will delve into the correct ways to enjoy espresso, layered, and thick-milk coffee drinks, teaching you how to unlock each cup’s potential through stirring, tilting angles, and drinking pace—bringing you a richer taste experience. [more…]

The appearance of oil on the surface of coffee beans is a natural phenomenon during the roasting process, but not all roasted beans will become oily. This layer of oil is closely related to the roast level and also directly affects the aroma and shelf life of the coffee. This article delves into the science behind oily coffee beans, explores how different roast levels influence oil production, and provides practical storage tips to help you better understand and preserve your favorite beans. [more…]

In professional coffee preparation, cleaning cloths may seem unremarkable, but they are key tools for maintaining hygiene and consistent flavor. Many beginners wonder why baristas always have multiple cloths designated for different purposes. In fact, each cloth is distinguished by its function—whether it’s dry or wet, or what it is meant to clean—and they must never be used interchangeably. This article will delve into the correct applications of five commonly used cleaning cloths, including wiping portafilters, steam wands, espresso machines, and countertops, and teach you how to distinguish them by color or material. [more…]

Starbucks recently reverted its App icon from the controversial close-up half-face mermaid design back to the classic image of the twin-tailed siren. This change has sparked widespread discussion among users and raised curiosity about whether it is related to the recently concluded Diamond Member campaign. This article will delve into the background of the logo change and explore how visual brand adjustments impact user experience. [more…]

In response to the issue of customers occupying seats without ordering, more and more coffee shops have adopted a seating consumption policy, which has sparked complaints and controversy among consumers. This article provides an in-depth analysis of 12315 reports, explores whether clear signage from shops constitutes forced consumption, and offers practical advice to help businesses balance operations with customer service. [more…]