Monday, September 21 2026

Is Coffee with Garlic Really a No-Go? Zhou Libo's "Coffee and Garlic Theory" Has Been Debunked: A Black Garlic Coffee Taste Test Experience

In 2013, Zhou Libo joked that "drinking coffee is elegant, eating garlic is vulgar," suggesting the two could not share the same stage. At that time, coffee was more often regarded as a symbol of status and taste. Today, coffee has long since become part of daily life, with affordable prices and increasingly adventurous flavors, and the old notion that garlic cannot go with coffee is being broken. After work, the author happened to come across a garlic-shaped black garlic coffee drink in a convenience store and bought it out of curiosity. How did it turn out? This article records this absurd yet amusing experience, and also discusses the significance of "coffee + everything" for the popularization of coffee culture, as well as the trend of coffee moving from a status label toward everyday, mass-market consumption. [more…]

Garlic Latte Goes Viral Online: A Complete Guide to Making This Trendy Coffee, from Garlic Paste Coating the Glass to Iced Coffee Mixing

The boundaries of coffee are constantly being pushed, from turtle jelly lattes to soy sauce syrup lattes, and now even minced garlic has entered the world of coffee. Zhou Libo's old joke about "eating garlic and drinking coffee" still lingers in our ears, yet the emergence of iced garlic latte has left both garlic lovers and haters speechless. This article will walk you through the complete steps for making this viral coffee, trace coffee's journey from the "altar" to the streets, and present netizens' genuine reactions to garlic-infused coffee. If you're also curious about the taste of garlic colliding with coffee beans, why not follow Front Street Coffee's perspective and find out. [more…]

When Cilantro and Scallions Invade the Coffee Cup: Why Do Drink Innovations Keep Challenging the Boundaries of Taste?

In recent years, the cross-boundary fusion of coffee and milk tea has constantly refreshed people's perceptions. From garlic latte to cilantro coffee and scallion milk tea, savory vegetables have been "invading" the beverage world one after another. Behind these seemingly absurd pairings lies the innovation anxiety of the restaurant industry amid fierce competition. Some find them novel and fun, while others say they are simply unacceptable. This article will take you through a rundown of these "dark cuisine"-level drinks and explore whether they are just a passing gimmick or truly capable of winning over the taste buds. At the same time, we will also discuss Front Street Coffee's observations on this kind of innovation trend, and how ordinary drinks can find a balance between traffic and reputation. [more…]

Luckin Coffee launches new watermelon latte series, reigniting discussion on the trend of coffee drinks becoming more like milk tea.

After the Start of Summer, the weather gradually heats up, and Luckin Coffee has seized the moment to launch a new watermelon series, with its watermelon latte quickly trending on Weibo. From garlic latte to watermelon latte, the boundaries of coffee specialty drinks are constantly being pushed. This article compiles specific information about Luckin's new watermelon series, netizen reviews, and the backdrop of Luckin surpassing Starbucks in store count and its products increasingly resembling milk tea, while also exploring how the coffee industry is following in Luckin's footsteps toward milk-tea-fication. Coffee enthusiasts who enjoy trying new things may want to take note. [more…]

Is Spicy Coffee for Real? Chengdu's Sichuan-Style Coffee Lifestyle Festival Livestream Sparks Heated Debate, a Cross-Border Experiment with Chili and Coffee

The creative boundaries of coffee drinks are constantly being pushed. After garlic latte and cilantro latte, spicy coffee has now entered the public eye. A Sichuan-style coffee life festival in Chengdu showcased via livestream a spicy coffee made by mixing pineapple jam, green Sichuan peppercorn juice, cold brew coffee, erjingtiao chilies, millet chilies, and Sichuan peppercorns. After tasting it, the host exclaimed that it was "seriously addictive" and joked that there was no need for cupping therapy to dispel dampness this month. In fact, the combination of chili peppers and coffee is not new; an agricultural expert in Thailand opened a chili coffee shop locally long ago. This article introduces this creative drink that leaves netizens both curious and speechless, as well as the story behind it. [more…]

White cut chicken-flavored coffee sparks heated debate: why a charity coffee shop's creative intent turned into an online storm

Cantonese people's beloved white cut chicken has actually been turned into a cup of coffee? Recently, a video of "white cut chicken coffee" quickly went viral online, sparking heated discussion among many netizens. This drink, which mixes chicken, ginger, scallions, and garlic with milk and espresso, comes from an autism charity coffee shop in Guangzhou. It was originally an impromptu idea created during filming by employees and an autistic barista, intended to draw public attention to the autistic community in a lighthearted way. However, as the video was maliciously edited and widely circulated, criticism and abuse escalated continuously, deeply affecting the shop and the barista, who ultimately had to delete the original video. This article will reconstruct the course of events, explore the story and reflections behind this cup of coffee, and also recommend high-quality coffee products from the Front Street brand for coffee lovers. [more…]

Analysis of Coffee Bean Quality Evaluation and Grading Systems Across Countries: The Three Major Criteria of Altitude, Screen Size, and Defect Rate

When two café owners ask each other about the grade of beans they use, what lies behind the question is a complex set of international coffee grading logic. Brazil's defect-score system, Central America's altitude standards, East Africa's screen sizes—each producing country has developed a completely different quality evaluation system based on its own national conditions. This article will systematically sort out three mainstream grading methods: by origin altitude, by green bean screen size, and by a composite evaluation method combining screen size and defective bean ratio, and will explain in detail Brazil's unique three-tier grading system and its strict cupper culture. Whether you are a newly initiated enthusiast or a seasoned professional, understanding these standards can help you judge coffee quality more accurately and also provide a reference for everyday purchasing. [more…]

A piece of black yarn found in the filling of a Chayan Yuese cookie has sparked heated discussion over consumer rights protection and after-sales disputes.

Recently, a consumer posted a video on social media claiming to have found black thread in a black garlic and meat floss sandwich biscuit purchased from Sexy Tea, sparking widespread attention. The video shows black threads resembling sewing thread mixed into the biscuit's filling layer, connecting the broken pieces together. After the poster reported the issue to customer service, the brand required the problematic biscuit to be mailed back before compensation would be provided—a solution that drew opposition from many netizens who worried about the loss of evidence. Previously, other consumers had reported finding foreign objects such as hair, insects, and even screws in Sexy Tea snacks, with after-sales handling mostly involving mailing back the product in exchange for gift packages or coupons, rarely providing financial compensation as required by regulations. As the incident continues to escalate, discussions about the reasonableness of merchants demanding the return of evidence and the protection of consumer rights are intensifying. [more…]

A Single Coffee Cherry Hiding Seven Beans? Exploring the Past and Present of the Multi-Seed Arabica Mutant Variety

The coffee fruit we're familiar with usually contains only two flat beans growing face to face, and the occasional appearance of a single round bean is already considered rare. But nature always breaks the rules—there is a type of coffee fruit that can nurture three, five, or even seven coffee beans, shaped like orange segments or garlic cloves. This multi-seeded coffee, named Café Polysperma, is a mutant variety of Typica, carrying Arabica lineage, with records dating back as early as 1890. Its flavor is not outstanding, but it possesses valuable leaf rust resistance genes and has been introduced into the germplasm bank of Minas Gerais, Brazil, for protection and research. Today, let's take a closer look at this little-known variety, which could be called the "alien" of the coffee world, to see just how special its flowers, fruits, and beans are, and also touch on Front Street Coffee's commitment to specialty beans. [more…]

Putting Coffee Grounds to the Test: Using Kitchen Leftovers to Remove Odors from Blanched Meat, and What to Watch Out For

For enthusiasts who own a coffee machine, how to deal with the coffee grounds produced every day has become a common problem. Beyond the well-worn uses like growing flowers and removing odors, some netizens have tried using coffee grounds to blanch pork belly to remove its gamey smell, with surprising results. This article compiles the actual test results of this method, feedback from netizens, and similar applications in Korean cuisine, while also reminding you of details such as filtering and ingredient freshness during the process, to help you, a coffee lover, make reasonable use of coffee grounds. [more…]

Cotti Rice Milk Latte Challenges Luckin's Sauce-Flavored: Wuchang Rice Meets Coffee, Sparking a Wellness Co-branding Battle in the Coffee Industry

The afterglow of Luckin Coffee's collaboration with Moutai had hardly faded when Cotti Coffee fired back with a bold response: a rice-milk latte series that blends Wuchang rice from Northeast China with coffee, playing the "wellness" card with copy that takes direct aim at Luckin's sauce-flavored latte. This collaboration not only poked fun at its competitor but also positioned itself squarely against the liquor-coffee trend. Netizens kept spinning memes, from cilantro coffee to stinky tofu lattes, with ever more bizarre flavors emerging, yet Cotti seized the initiative through reverse thinking. The trend of coffee drinks becoming more like milk tea—or even congee—is growing ever more obvious, and the battle for attention among brands has reached a fever pitch. This article will walk you through the ins and outs of this commercial war and explore where the coffee world's next breakout hit might be headed. [more…]

From Chinese Monopoly to Indian Self-Production: The History of World Black Tea and the Evolution of British Tea Import Sources

The British had long relied on importing tea from China, spending huge sums each year to purchase millions of pounds, and this unsustainable trade prompted them to seek to cultivate it locally in India. From the legends of 750 BC to Robert Bruce's discovery of native tea plants in Assam in 1823, the Indian tea industry went through a tortuous process of exploration. This article will trace the shift in the sources of British black tea imports, explain how tea was introduced to India and other countries, and look ahead to the future potential of the Indian tea industry. Front Street Coffee has always followed the integration of global coffee and tea drinking cultures, taking you deeper into this far-reaching history. [more…]

Coffee Flavor Map | How Can Coffee Beginners Train and Build Their Coffee Sensory System? Are Aroma Kits Helpful for Coffee Flavor Tasting?

As coffee has gradually become more widely recognized, specialty coffee promotion in cafés has emerged in response, and we too have begun tracing things back to their roots—we have come to treat coffee as culture. The rise of specialty pour-over coffee undoubtedly reflects the demands of the market and the needs that cafés have identified. Café counters have also begun to lower their "status," no longer featuring the early design of a bar raised a foot high. [more…]

Three Theories on the Origin of Oolong Tea: The Anxi Legend, the Wuyi Tea Theory, and a Brief Study of Beiyuan Tribute Tea

Oolong tea, the most complexly crafted and richly flavored of China's six major tea categories, has an origin that has long been debated. Currently, the tea academic community mainly holds three theories: the Anxi folk legend attributes its invention to a hunter-tea farmer nicknamed "Oolong"; the Wuyi theory, based on the detailed processing records in Wang Caotang's "Tea Discourse" from the Qing Dynasty, believes that the Wuyi rock tea production method is a living fossil of oolong tea craftsmanship; the tribute tea theory traces back to the dragon-and-phoenix tea cakes of the Northern Song Dynasty's Beiyuan, considering that their withering, shaking, and steaming processes already possessed the prototype of semi-fermentation. Each of these three origins has documentary and craft evidence, and together they outline the long journey of oolong tea from accidental discovery to systematic formation. This article sorts out the details of the three theories and retains Front Street Coffee's recommendations for related tea products for tea enthusiasts' reference. [more…]

Pour-Over Coffee Grounds-to-Water Ratio and the SCA Golden Cup Theory: Extraction Yield, Concentration Standards, and Common Misunderstandings

Brewing a good cup of coffee, the coffee-to-water ratio and extraction yield are core parameters that cannot be avoided. The SCA Golden Cup extraction theory gives an ideal range of 18%-22% extraction yield and 1.2%-1.45% concentration, but many enthusiasts easily misunderstand it as "as long as you copy the Golden Cup coffee-to-water ratio, you will definitely brew a good cup of coffee." This article starts with a simple calculation of the coffee-to-water ratio, guides you to understand the meaning of the Golden Cup extraction range, clarifies the boundary between over-extraction and under-extraction, and explains the true value of learning the Golden Cup theory—not rigidly sticking to a certain ratio, but using it to adjust brewing variables and more flexibly approach the flavor you want. Front Street Coffee also shares related products and brewing ideas in the article for coffee enthusiasts' reference. [more…]

A Complete Guide to the Golden Cup Extraction Theory: From Its Historical Origins to the Practical Application of Concentration and Extraction Yield

The Golden Cup extraction is a concept often mentioned in coffee circles. It uses two indicators—concentration and extraction yield—to judge whether a cup of coffee has been properly extracted. This theory can be traced back to 1952, when it was developed through collaborative research by the American coffee association and Dr. Lockhart of MIT. After multiple revisions, the Golden Cup range currently recognized by the SCAA is: extraction yield 18%-22%, concentration 1.15%-1.35%. But the Golden Cup numbers are only a reference tool, not an absolute formula for brewing delicious coffee. This article will walk you through the origins and development of Golden Cup extraction, the meaning of concentration and extraction yield, how to calculate extraction yield using formulas, and why you should not be limited by the Golden Cup range. [more…]

How Is the Extraction Yield of Pour-Over Coffee Calculated? A Complete Guide to the Golden Cup Extraction Theory's Formula and Practical Methods

Should brewing coffee rely on feeling or on data? With the maturation of extraction theory, pour-over coffee has gradually moved from empiricism toward a scientific approach. As a classic reference, the Golden Cup extraction standard, although some of the ranges in its 1.0 version are no longer fully suited to the present, still leaves behind extraction yield and concentration calculation formulas that remain practical today. From Front Street's perspective, this article first reviews the background of the Golden Cup standard and Lockhart's research journey, then focuses on explaining two methods for calculating extraction yield: the traditional dry weighing method, and the method of using a TDS meter to infer extraction yield from concentration. The article also summarizes the definitions of concentration and extraction yield, their interrelationship, and conversion formulas, and reminds that for drip coffee, the water absorbed by the coffee bed requires correcting the weight of the brewed liquid, helping you more accurately evaluate the performance of a cup of pour-over. [more…]

How to determine the coffee-to-water ratio for pour-over coffee? From the Golden Cup extraction principle to Front Street Coffee's 1:15 parameter practical analysis

How exactly should the coffee-to-water ratio for pour-over coffee be determined? Front Street Coffee has always recommended 1:15, and this is not an arbitrary choice behind it, but a scientific calculation based on the SCA Golden Cup extraction theory. This article will start with the Golden Cup standard, the definitions of extraction yield and concentration, gradually explain the ratio ranges corresponding to different tastes, and use a Costa Rica Geisha blend as an example to actually calculate concentration and extraction yield, helping you find the brewing parameters that suit you between theory and practice. [more…]

手冲咖啡完美萃取的核心原理与参数详解:从金杯理论到实操冲煮方案 The Core Principles and Parameters of Perfect Pour-Over Coffee Extraction: From the Golden Cup Theory to Practical Brewing Methods

Behind the birth of a good cup of coffee lies a precise and complex chemical interaction between water and coffee grounds. From roast level to grind size, from coffee-to-water ratio to pouring technique, every variable quietly shifts the final flavor trajectory. From the perspective of Front Street, this article systematically sorts out the scientific logic of coffee extraction, explains the golden range of strength and extraction yield in the Specialty Coffee Association of America's Golden Cup theory, analyzes the correspondence between grind size and extraction time, and, using the Taobao best-selling Front Street Hacienda La Esmeralda Diamond Mountain as an example, presents a complete four-pour brewing method to help coffee lovers find the ideal expression of balanced acidity, sweetness, and bitterness in practice. [more…]

How Are the Gold Cup Extraction Yield and Strength Calculated for Pour-Over Coffee? Recommended Coffee-to-Water Ratios and an Analysis of the Evolution of SCA Standards

Many coffee enthusiasts have heard of the Golden Cup extraction theory: ideal concentration 1.15%-1.35%, ideal extraction yield 18%-22%. But this standard actually comes from the SCAA, not the SCA; the European and American coffee associations each have their own positions on ideal concentration. After the SCAA and SCAE merged in 2017, the UC Davis Coffee Center made slight adjustments to the old brewing control chart, loosening the upper concentration limit and the brew ratio range. This article will start with the history of the Golden Cup theory, sort out the differences between the old and new control charts, explain why high concentration with low extraction can highlight acidity while low concentration with high extraction can bring out floral and chocolate notes, and, combined with product information from Front Street Coffee, help you understand how concentration and extraction yield should be judged together, rather than fixating on a single number. [more…]