On the stages of the 2023 WBC finals and the WBrC in Chicago, a Colombian coffee variety named "Ombligon" appeared frequently, drawing industry attention. It comes from Finca El Diviso in the Huila region; its fruit resembles a papaya with a small ring at the bottom, and its name derives precisely from this. Genetic research shows it is related to Ethiopian landraces, yet it is a unique variety formed through natural mutation in Colombia. Finca El Diviso has tailored a processing protocol for Ombligon that includes hot-water flotation, sealed fermentation, and sugar-solution-activated yeast—known in the industry as "thermal shock fermentation"—allowing this bean to display layered fruit flavors reminiscent of grapes, oranges, blueberries, and pineapple juice. In this article, Front Street Coffee will guide you through a comprehensive understanding of Ombligon's varietal characteristics, estate background, processing details, and pour-over recommendations. [more…]

Anaerobic coffee has been appearing on coffee bean lists frequently in recent years. Although many people have tried it, they only have a vague understanding of its specific process, and some even develop an aversion to it due to unfamiliarity. In fact, anaerobic processing is not as complicated as imagined. In most cases, it simply adds an extra anaerobic fermentation step before traditional natural or washed processing. The depth of fermentation is precisely the key that determines the direction of coffee flavor. From the perspective of Front Street, this article sorts out the basic principles of anaerobic processing, common methods, and their connection with traditional processing. Combined with three specific beans, it helps readers understand the flavor differences brought by different anaerobic treatments, so they can find the cup that suits their taste. [more…]

Adding milk to tea is a habit with a rich history and scientific principles behind it. From Tibetan butter tea to Indian masala chai, and then to British workers' tea, the combination of milk and tea spans multiple centuries and civilizations. Why do people add milk to tea? Is it milk first or tea first? And what different flavor experiences does the order bring? This article will take you through the historical origins of milk tea, explore various theories about adding milk, and analyze in depth the interaction between milk and the tannins in black tea, helping you understand the science and culture behind this everyday drink. Whether you are a purist or a milk tea lover, you will gain new insights from it. [more…]

Today, coffee processing methods are emerging one after another. Behind this lies both the pursuit of expanding the flavor map and a deeper shift in the purpose of processing from efficiency-oriented to flavor-oriented. From the pre-18th century when only the natural method existed, to the successive advent of washed, honey, and wet-hulled methods, and then to 2014 when anaerobic fermentation swept through the specialty coffee world, each technological innovation has been accompanied by a deeper understanding of fermentation principles. At the same time, in order to highlight their own anaerobic processing characteristics, estates have put great effort into naming—time, temperature, and microbial strains can all become identifiers. This article sorts out the origins and development of processing method evolution, interprets the logic behind anaerobic processing naming, and explores the role of traceability information in promoting naming standardization. [more…]

Having been immersed in the coffee industry for many years, the author is both a barista behind the counter and an observer on social media. Over these years, consumers have gone from knowing nothing about coffee to becoming increasingly particular, and the industry has indeed made progress. However, dealing with all kinds of customers every day, one always encounters some both amusing and exasperating moves—from "an Americano with milk" to bringing one's own water quality testing pen, from cupping spoons to TDS concentration meters. These moments not only test a barista's professional competence but also reflect the various misunderstandings in the process of coffee culture becoming widespread. This article records seven real-life scenarios with escalating shock levels, and after each story provides professional analysis and suggested responses. Whether you are a practitioner or an enthusiast, you can see both the absurdity and the reality of the coffee world in them. [more…]

Coffee doesn't have to be brewed with hot water—cold water can also extract stunning flavors. Since the 1960s, Japan has popularized an extraction method that uses a special ice drip pot to slowly drip ice water through coffee grounds, yielding a rich, full-bodied coffee liquid with almost no unpleasant bitterness. Because cold water lacks the thermal molecular movement of hot water, the extraction process often takes six to eight hours, during which one must constantly monitor the melting ice and replenish it promptly to ensure the dripping water remains at a consistently low temperature. Combined with limited output per batch, ice drip coffee is usually priced higher than other regular coffees. However, ice drip equipment is expensive, so some people have switched to soaking coffee grounds in cold water and then refrigerating for about twelve hours. Although this method is slightly inferior in clarity, it still produces a full, balanced coffee without undesirable bitterness. This article will systematically outline the essential differences between ice drip and cold brew, the flavor differences between cold-water and hot-water extraction, and, using Front Street Coffee's practical experience as an example, provide detailed guidance on the preparation methods and storage recommendations for both types of cold coffee. [more…]

Ethiopia's security situation has remained tense recently, and the Chinese consulate has issued a travel risk advisory. Several of the country's coffee-producing regions are located in high-risk areas, and clashes between the federal government and local armed groups could deal a severe blow to coffee production, the supply chain, and exports. Although coffee exports hit a record high in the first nine months of this fiscal year, the looming civil war, transport blockades, and the possible cancellation of the Cup of Excellence competition are all casting a shadow over the country's coffee industry. This article will review the current risk areas, the background of the conflict, and its potential impact on the coffee sector. [more…]

A strike and protests erupted at Jomo Kenyatta International Airport in Nairobi, Kenya's capital, over employees' opposition to the government's cooperation plans with India's Adani Group, causing numerous flight delays and cancellations and throwing airport operations into chaos. This turmoil not only hits tourism and cargo but may also weaken investor confidence, making Kenya's coffee industry even worse off. This article sorts out the cause of the incident, its development, and its chain effects on the coffee industry, helping readers understand the complex situation currently facing East African coffee origins. [more…]

In today's rapidly evolving coffee industry, barista positions attract a large number of enthusiasts submitting their resumes. However, during interviews, the gap in expectations between recruiters and candidates often leads to both amusing and exasperating situations. This article compiles real interview experiences from multiple coffee professionals, covering everything from entering the industry with zero experience, requirements for latte art and pour-over skills, probation-period salary negotiations, to the professional thresholds for part-time positions, recreating those conversations that leave a complex mix of emotions. Whether you're a newcomer preparing to step into the coffee industry or a shop owner currently hiring, these cases are worth reading. At the end of the article, we've also included channels for learning professional coffee knowledge to help you avoid unnecessary detours. [more…]

Coffee filter cups on the market come in a wide variety of materials—resin, glass, ceramic, and metal each have their own fans—but what real impact do different materials actually have on brewing? Many people's first thought is the price difference, but setting aside cost, the most core difference between materials lies in their ability to control temperature. Thermal conductivity determines how quickly heat is transferred, while specific heat capacity relates to how much heat an object can store. Together, these two physical parameters directly change the temperature performance of hot water during the extraction process. Metal conducts heat fastest but also dissipates it quickly; ceramic has a high specific heat capacity but needs thorough preheating; glass performs mildly; and resin, because it absorbs heat slowly, has almost no effect on water temperature. In this article, Front Street Coffee will break down the characteristics of four common filter cup materials one by one, and combine them with the actual differences in flow rate among V60 versions made of different materials, to help everyone understand why you cannot simply copy extraction formulas from the internet, but should instead flexibly adjust your brewing strategy according to the material of the filter cup in your hands. [more…]

The material of a pour-over coffee dripper isn't just about feel and aesthetics—it genuinely changes the flavor in the cup. Front Street Coffee has shared before that the reason different dripper materials produce different extraction results comes down to two physical indicators: specific heat capacity and thermal conductivity. Thermal conductivity determines how quickly heat transfers, while specific heat capacity determines how easily a substance heats up or cools down. Together, they determine how much temperature a dripper "steals" from the hot water. This article will start from these two concepts to explain why a ceramic dripper makes coffee less bitter when it hasn't been preheated, why it's best to warm a ceramic dripper with hot water before use, and offer parameter adjustment suggestions based on actual brewing. [more…]

After Hurricane "John" made landfall in southern Mexico, it caused at least 16 deaths, damaged more than 700 homes, and left about 100,000 users without power, with Guerrero and Oaxaca states hit especially hard. More critically, 95% of Mexico's coffee production is concentrated in the south, and the current period is when coffee is fruiting; torrential rain knocked fruit off the trees, flooded coffee plants, and the risk of landslides compounded the damage, putting the expected increase in output for the 2024/25 season at risk of being revised downward. At the same time, global coffee prices are already at high levels due to reduced production in places such as Brazil and Vietnam, and with Mexico now hit by another climate shock, prices are unlikely to fall in the short term. [more…]

Cold brew coffee is extracted in a low-temperature, still environment, and many people habitually assume that grinding the coffee finer will increase its strength—but is that actually true? Through comparative experiments, Front Street Coffee found that a coarser grind actually yields a higher TDS reading in cold brew. Starting from the underlying logic of water temperature and particle movement, this article will explain why the "finer grind equals stronger coffee" theory that applies to high-temperature pour-over does not hold for cold brew. It also offers coffee bean recommendations suitable for cold brew, suggested coffee-to-water ratios, and points to note on grind selection for beans of different roast levels, helping you make a specialty cold brew with just the right strength and an aroma that isn't masked by added ingredients. [more…]

Faced with drippers of all shapes and sizes on the market, friends new to pour-over coffee are often baffled by names like V60, Kono, and Origami, along with materials such as ceramic, resin, and metal. This article starts from the fundamental structure of the dripper, breaking down what the cone shape, internal ribs, bottom hole, and construction material each mean. You'll come to understand that these designs ultimately point to two core factors: flow rate and temperature control, and grasping the differences in thermal conductivity and specific heat capacity can help you match a more suitable dripper to your brewing method. Front Street Coffee takes you through the principles so you no longer follow trends blindly, and find that perfect cup of coffee of your own. [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…]

Cold brew tea has become increasingly popular in recent years. Not only does it release less caffeine, making it suitable for people sensitive to caffeine, but cold water steeping also reduces the extraction of tannic acid, giving the tea a sweeter, smoother taste without bitterness. However, the cold brewing time varies greatly depending on the form of the tea leaves—broken pieces, strips, and ball-shaped leaves each have their own requirements. Steeping too long can lead to over-extraction and a cloudy, bitter brew. This article provides a detailed guide to the suitable tea types for cold brewing, a time reference chart, the relationship between water temperature and steeping duration, and answers to common questions such as whether overnight tea is safe to drink, helping you easily make a delicious glass of cold brew iced black tea. [more…]

Coffee doesn't have to be brewed with hot water—cold water can also extract surprisingly delightful flavors. Ice drip and cold brew are two common low-temperature extraction methods: the former uses ice water for drip filtration, while the latter uses ice water for immersion, and the resulting cups have their own distinctive mouthfeel profiles. This article will start from the essential differences between the two, explain how cold water extraction and hot water extraction differ in flavor expression, answer whether cold brew counts as black coffee, and share recommended bean varieties suitable for making low-temperature coffee. It will then break down in detail the operating steps, grinding parameters, and coffee-to-water ratios for ice drip coffee and cold brew coffee, and finally offer suggestions on refrigeration storage time, helping coffee enthusiasts consistently make clean, full-bodied cold coffee at home. [more…]

To enjoy a cup of cold brew coffee with outstanding sweetness at home, you actually don't need expensive equipment. Using 50 grams of coffee grounds as a baseline, Front Street Coffee shares the complete parameters from grind size and coffee-to-water ratio to refrigeration extraction time. Even more worth trying is using 40°C warm water instead of room-temperature water to make cold brew coffee—by relying on molecular thermal motion to accelerate the release of sweet and sour compounds, then transferring it to a low-temperature environment to inhibit the extraction of bitterness, you can get a full-bodied berry juice sensation and caramel sweetness in just 4 to 5 hours. This article records in detail the steps for warm-water cold brew, flavor comparisons, and storage suggestions, making it a useful reference for every enthusiast who enjoys refreshing cold coffee. [more…]

Recently, GuMing Milk Tea was fined over 11.61 million yuan for tax evasion, and the news quickly topped Weibo's trending list, sparking heated discussion among many consumers. Many milk tea enthusiasts expressed shock and disappointment, lamenting that the brand had "collapsed." As a well-known tea beverage brand, GuMing's tax issue this time not only involves a huge amount but also exposes loopholes in corporate compliance management. This article will sort out the timeline of the incident, the details of the fine, and consumer reactions, and explore the impact of the incident on the brand's image and the industry. At the same time, we continue to follow developments in the coffee field, bringing you professional coffee knowledge and specialty bean recommendations. [more…]

Located in Hafursa Village, about eight kilometers west of Yirgacheffe town, it sits on slopes between 1,900 and 2,200 meters above sea level. The local processing station has 12 standard fermentation tanks and more than 160 coded drying bed frames, allowing precise tracking of processing progress. High-altitude berries, after washing, present a distinct lemon note, bright and high-pitched with a delicate texture. However, traditional African beds dry too quickly under bright sun and ventilation, which is actually unfavorable for flavor development. This article explores in depth the agronomic principles of the semi-shaded slow drying method and how it extends the drying period to 16–30 days, thereby preserving more complete contents and bringing a completely different flavor and aftertaste experience. Front Street Coffee recommends this Hafursa slow-dried washed G1, which is worth savoring. [more…]