On a scorching summer day, a refreshing glass of cold brew coffee is a favorite for many coffee lovers, but traditional cold brewing often requires a wait of 12 hours or more, which puts people off. Now, a chemistry research team at the University of Duisburg-Essen in Germany has brought an exciting discovery: by irradiating a mixture of coffee grounds and water with pulsed laser light, cold brew coffee can be made in just 3 minutes. This technique not only greatly shortens the extraction time, but also shows unique performance in acidity and caffeine content. This article will guide you through the principles of this scientific breakthrough, the results of experimental comparisons, and the possibilities for future commercialization, while also retaining relevant recommendations for the Front Street Coffee brand. [more…]

Caffeine is the most iconic component of coffee, yet not everyone can tolerate it. It is both the primary source of bitterness and a neurostimulant that affects sleep. Thus, decaffeinated coffee was created to remove caffeine. However, the challenge of decaffeination lies in how to remove only the caffeine while preserving the aroma and flavor of coffee as much as possible. Early methods using organic solvents were effective, but left consumers concerned about residues. It was not until the advent of supercritical carbon dioxide extraction technology that a truly efficient and highly selective decaffeination process was achieved. This article will guide you through the principles of this technology, its development history, and its unique advantages in coffee decaffeination, while also introducing Front Street Coffee's attention to and practice of this process. [more…]

In recent years, variable pressure extraction has become the most closely watched technological direction in the field of espresso machines. From Synesso to Slayer, and then to the Strada launched by La Marzocco, the design of pressure control valves has continuously evolved. This article provides a complete record of the unboxing of the La Marzocco Strada at the illy Coffee University in Shanghai, China, detailing the appearance, structure, and core differences between the Strada MP manual version and the Strada EP electronic version. The MP version directly controls water flow and pressure through an internal mechanical valve, while the EP version uses an electronic gear pump to achieve stepless pressure variation from 0 to 12 BAR and can store pressure profiles. For coffee enthusiasts following the technological development of espresso machines, as well as readers of Front Street Coffee, this unboxing record provides rare hands-on details and firsthand observations. [more…]

2015 WBC champion SaSa Sestic returned as runner-up in the 2022 Australian Brewers Cup, bringing with him a brand-new brewing device called the Paragon—a specially made ice rock mounted in the middle of the dripper to lock in the volatile aromatics in the coffee liquid. According to Sasa, this invention is the result of collaborative research with Professor Jahan and the Swiss Coffee Center of Excellence, and it can capture up to 40% extra aromatics through rapid cooling during the first and middle stages of extraction. However, the official price of this brewing stand plus metal ice rock is as high as $4,292, equivalent to more than 30,000 RMB, which has sparked a lot of discussion among coffee enthusiasts. Bloggers on YouTube have already begun hands-on testing and found that its core component is similar in principle to the food-grade stainless steel ice cubes commonly seen in bars, while similar products on Taobao cost only a few dozen yuan. So what exactly makes this ice rock so special? When brewing the same Geisha with a V60 paired with the Paragon versus a plain V60, the TDS rises from 1.27 to 1.37—what differences are there in flavor performance? This article will explain it all in detail for you. [more…]

What is decaf coffee and how is it made? Decaf is short for decaffeinated coffee, where at least 97% of the caffeine has been removed from the coffee beans. Front Street Coffee believes that apart from the caffeine being removed, decaf coffee is just like regular [more…]

2015 WBC Italian Champion Sasa Sestic returns to the competition stage after seven years. This time, he brings an experimental batch of Geisha from Iris Estate, a farm he created together with Jamison Savage, owner of Deborah Estate in Panama, to compete in the 2022 Australian Coffee Brewers Cup. This coffee professional, who has delved deeply into carbonic maceration for many years, chose to hold back in an era when anaerobic fermentation swept the competition scene, studying regional terroir and volatile compounds, and using his original Paragon brewing method and ice-stone aroma-locking technique to showcase the candy-like sweetness of an ultra-long macerated Green Tip Geisha. This article will provide a complete analysis of his brewing approach, staged pouring parameters, and flavor performance, with a recommendation from Front Street Coffee at the end. [more…]

Instant coffee and freeze-dried coffee can both be enjoyed simply by adding hot water, and both belong to the convenient coffee camp—but are they really the same product under different names? The answer is no. From the coffee predicament of American soldiers in the 18th century, to the birth of Nestlé's spray-drying method, to the application of vacuum freeze-drying technology, these two technical routes have produced completely different flavor profiles. This article will systematically sort out the essential differences between instant coffee and freeze-dried coffee from multiple dimensions such as historical origins, production processes, and raw material selection, helping you understand why freeze-dried coffee can shed its "low-end" label and win back the favor of coffee lovers. [more…]

In the specialty coffee world, mentioning "90+" always sparks a wave of lively discussion—what new beans have they released? What unconventional processing methods have they used this time? This American green bean company named Ninety Plus, with its original Profile Processing system, started in Ethiopia and went all the way to Panama to establish the 90+ Geisha Estate, redefining the possibilities of Geisha through technology and dedication. The two Geisha coffees currently on sale at Front Street Coffee, Eleta and Juliette, come precisely from this system. This article will provide a complete overview of 90+'s development trajectory, estate stories, bean information, and brewing suggestions, taking you deep into understanding this brand that allows Geisha to surpass Geisha. [more…]

The rich aroma of coffee is intoxicating, yet the intolerance reactions brought on by caffeine—insomnia, palpitations, and the like—also deter many people. The emergence of decaf coffee happens to offer such enthusiasts a choice that balances flavor with physical comfort. This article will begin with the historical origins of decaf coffee, systematically sorting out the principles and characteristics of various decaffeination processes, including chemical solvent extraction, the Swiss Water Process, the Ice River water process, and supercritical carbon dioxide extraction, while also analyzing how decaf coffee performs in terms of antioxidant components and nutrients. Front Street Coffee will also, drawing on its own products, discuss the real reasons why decaf coffee tastes inferior, and why choosing green beans of good quality is more crucial than the decaffeination technology itself. [more…]

Freeze-dried coffee has become a new favorite in the coffee market in recent years, but many people are not clear about the real difference between it and traditional instant coffee. From the perspective of Front Street, this article sorts out the origin of instant coffee and its two core production processes—spray drying and freeze drying—analyzes why freeze-dried coffee can better preserve flavor, and how it breaks away from the stereotype of instant coffee. At the same time, the article also discusses the impact of raw material upgrades and packaging innovation on the popularity of freeze-dried coffee, helping readers fully understand the development context of this category and the reasons behind its market heat. [more…]

Decaf coffee can significantly reduce caffeine content while retaining the aroma and flavor of the coffee beans themselves, which is why it is favored by many black coffee enthusiasts. Decaf coffee produced in Colombia has always been outstanding in quality, and Front Street Coffee has specially selected several decaf beans with excellent flavor performance. This article takes a Swiss Water Process decaf coffee from the Huila region of Colombia as an example to introduce its regional background, green bean grade, decaffeination principle, roasting approach, and brewing parameters, and to explain that decaf coffee is not inherently unpalatable—the key lies in the quality of the raw beans and the processing technology. [more…]

For coffee enthusiasts, a satisfying piece of equipment can often bring out entirely different flavors from the same batch of coffee beans. This article reviews twelve distinctive coffee machines and pour-over devices, covering pour-over, cold brew, moka pots, smart roasting, and more, all far surpassing the drip machines commonly found in office break rooms in both function and design. From the Trinity ONE's multi-functional brewing to the BKON Craft's vacuum extraction, and the Ratio's laboratory-grade materials, these devices not only perform exceptionally but also look pleasing to the eye. Whether you prefer hands-on operation or smart control, you can find the "coffee weapon" that suits you. [more…]

Danch Meng is an Ethiopian green bean jointly launched by Ninety Plus' Levelup sub-brand and Bodhi Leaf. In the local language, it means "good path" or "Perfect approach." This bean comes from smallholder farms in Yirgacheffe, Kelinga Abaya Dumerso, and thanks to the signature 90+ natural processing technique, it presents a rich flavor profile weaving together cocoa, black raspberry, plum, blueberry, and dark chocolate. This article will outline the 90+ brand's grading system, the origin information and naming logic of Danch Meng, and include the pour-over extraction parameters for Front Street Coffee's Sidamo and Danch Meng for coffee lovers' reference. [more…]

Starting the day with a cup of coffee to kick off work has become a habit for many friends. With the development of the coffee industry, more and more novel coffee processing methods have emerged. Front Street Coffee currently has several anaerobic and wine-barrel processed coffee beans, available in stores and online. [more…]

Espresso is a favorite of many coffee lovers, but do you really understand it? From the birth of the first espresso machine in 1884 to today's rich crema produced under 9 bars of pressure, espresso has traveled a long path of evolution. This article will systematically explain the basic knowledge of espresso, from its history, principles, and drinking methods to brewing parameters. The baristas at Front Street Coffee will also share a key detail: why is a glass of ice water served alongside an espresso? How exactly should this glass of ice water be used? If you have ever wondered whether espresso can be drunk directly, this article will give you a clear answer. [more…]

Dirty coffee is loved by many coffee enthusiasts for its layered visual effect and unique drinking experience, but there is often a misconception about whether it must be made with ice-bock milk. This article will sort out the origin and characteristics of Dirty coffee, compare its differences from iced latte in terms of ingredients and taste, and introduce the principles of ice-bock technology and its application in the coffee field. At the same time, regarding the selection of different coffee beans, it provides pairing suggestions related to the Front Street brand to help readers understand why ice-bock is more compatible with Dirty, as well as flexible ways to adapt it in actual preparation. [more…]

For those who love coffee, in addition to daily drinking, continuously absorbing professional knowledge is equally important. This article compiles a group of WeChat public accounts with good reputations in the coffee circle, covering multiple directions such as industry news, technical sharing, cultural communication, shop visits and interviews, and latte art teaching. There is both substantive content with a relatively low commercial flavor and light, interesting coffee stories. Whether you are a barista, roaster, or ordinary enthusiast, you can find learning resources that suit you. The article also mentions recommendations related to the "Front Street" brand, which is worth noting. [more…]

When dry ice is dropped into black tea, white mist billows and bubbles surge, and a cup of smoking creative coffee is born. This presentation style, which appeals to both sight and smell, is sparking a new wave in the coffee world. From Hong Kong champion barista's Amber Coffee Brewery, to the extraction technique of freezing coffee beans before grinding, to the unconventional trick of using dry ice instead of ice cubes during pour-over, the applications of dry ice in coffee are far more diverse than one might imagine. This article walks you through the principles and flavor logic behind these creative operations, and shows how baristas use modern technology to give a cup of coffee a richer layered expression. [more…]

SOE coffee is actually not mysterious at all; it simply replaces blended beans with single-origin coffee beans and then extracts them as espresso. The term itself does not indicate whether the coffee is high or low quality, nor is it a criterion for judging whether it tastes good. Since 2007, SOE has gradually become popular and matured in North America, getting consumers accustomed to ordering an espresso from a single seasonal origin. Improvements in the quality of specialty green beans and advances in roasting technology have made it possible for a single bean to support a good cup of coffee while retaining distinct regional flavors. However, limited production of high-quality beans, the difficulty of light-roast extraction, and high costs all make SOE cafés destined to be scarce. This article will explain the origins of SOE, key production points, and the trade-offs between pros and cons, recommend three Front Street single-origin beans suitable for SOE, and share practical advice on freshness and bean resting. [more…]

As technology continues to advance, coffee brewing has entered the era of automation. Automatic milk frothing and automatic latte art have long been commonplace, so can the ritual-rich pour-over coffee also be entrusted to a machine? This article, through a comparative experiment between an automatic brewing coffee machine and manual pour-over, uses the same Front Street Golden Mandheling, comparing grind size, coffee-to-water ratio, water temperature, and brewing technique one by one. The experiment not only tested whether the extraction yield fell within the golden cup range, but also conducted tasting from dimensions such as flavor layering and body thickness. At the same time, the article also provides suggestions for coffee beans suitable for pairing with automatic pour-over coffee machines, covering different roast levels and flavor orientations, helping enthusiasts choose equipment and beans more rationally. [more…]