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…]

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…]

When brewing coffee, water quality, cooling methods, and tasting cup types are often treated as independent variables, but can combining all three lead to more significant sensory improvements? Front Street Coffee designed a controlled experiment using Huakui beans as samples: one group used regular mountain spring water, no ice ball, and a standard espresso cup, while the other used a custom water concentrate, a Paragon ice ball, and an aromatic tasting cup, with completely identical brewing parameters. Through concentration measurements and blind tasting, the actual contributions of these tools at different stages were verified. This article documents in detail the TDS control of the custom water concentrate, the cooling mechanism of the Paragon ice ball, and the aroma-concentrating effect of the tasting cup, and invited colleagues and customers to participate in a blind selection. The final results were highly consistent, providing coffee enthusiasts with a reproducible reference for combined techniques. [more…]

On the journey to pursue a good cup of coffee, besides high-quality beans and skilled technique, some seemingly inconspicuous auxiliary gadgets often play a finishing touch. Front Street Coffee has previously introduced sharp tools such as latte art needles and WDT needles. Today, continuing with the theme of coffee auxiliary tools, we will review the uses and methods of the secondary dispersion screen, Paragon ice ball, Lily Drip, dosing funnel, extraction observation mirror, and a silencing air blower. These tools help coffee enthusiasts and professionals complete brewing more calmly from the perspectives of even extraction, locking in aroma, improving puck distribution, enhancing operating cleanliness, making it easier to observe extraction status, and reducing noise. Whether you are a beginner just starting out or an advanced player pursuing details, you can find a practical solution that suits you. [more…]

The Paragon ice ball, which made its debut at the WBC Brewing Championship, claims to lock in 40% of volatile aromatics, making coffee flavor fuller. It preserves aromatic compounds by cooling the extracted liquid, but how does it actually perform? Front Street Coffee conducted a comparative brew using Panama Boquete Geisha, one regular and one with the ice ball, tasting from temperature to aroma to acidity one by one. The results revealed that the ice ball's main function is actually to lower the coffee's temperature, reducing sensory obstacles caused by high heat. Is it worth buying? This article reveals the answer for you. [more…]

In the world of specialty coffee, flavor expression has always been the shared pursuit of enthusiasts and professionals alike. Beyond selecting quality beans, all kinds of extraction aids keep emerging, among which the Paragon golden ball created by world champion Sasa Sestic stands out. It claims that by rapidly cooling the coffee liquid, it can retain 40% more aroma. Is this a marketing gimmick or does it actually work? Front Street Coffee will walk you through how the Paragon works and, through actual brewing comparisons, verify the real impact of this little golden ball on coffee flavor. If you have ever wondered about the connection between aroma and flavor, or hesitated over whether it is worth buying, the experiments and analysis in this article may give you an answer. [more…]

Conventional wisdom holds that preheating a coffee cup slows the rate at which coffee cools, helping maintain an ideal drinking temperature. However, as understanding of the relationship between temperature and flavor perception deepens, more and more coffee professionals have begun serving coffee in room-temperature or even chilled vessels—especially in summer, since this not only prevents burning the mouth but also allows the layers of flavor to be captured more clearly. It was on this basis that Sasa Sestic, founder of the Origin Project, developed the Paragon ice ball, which locks in aroma through instant cooling. So, if the cup receiving the coffee is chilled, could a similar effect be achieved? Front Street Coffee put this to the test, using chilled vessels to make espresso and pour-over coffee respectively, exploring the actual impact of low-temperature vessels on flavor presentation. [more…]

Should you add ice first or ice last when making iced pour-over coffee? This question may seem like a mere difference in procedure, but behind it may lie the preservation and release of coffee flavors. Front Street Coffee once mentioned the Paragon ice ball in an article; its principle is to lock in volatile aromas by rapidly cooling the coffee liquid, allowing the drinker to experience a richer coffee flavor. Inspired by this, we restarted the experiment, using the same Colombian Frontera Estate washed Geisha, to compare the differences between adding ice first and adding ice last in iced pour-over coffee in terms of operation, temperature, aroma, and taste. The experiment strictly controlled the ratios of coffee grounds, water, and ice, and corrected for differences in tasting time. What was the final result? Is there really an obvious difference between the two? This article will reveal the answer for you. [more…]

Coffee aroma is volatile, and the higher the temperature, the faster it dissipates, so some have proposed using low-temperature containers to lock in the aroma. Front Street Coffee compared three types of pour-over coffee vessels—a high-temperature cup, a room-temperature cup, and a frozen cup—to test whether cup temperature truly affects coffee aroma and flavor performance. The experiment used Kenya Asaliya coffee beans with uniform brewing parameters, and the results showed that cup temperature mainly changes the temperature of the coffee when it enters the mouth, rather than the amount of aroma, but temperature differences do indeed cause noticeable changes in flavor perception. This article will present the experimental process and conclusions in detail, and offer cup selection suggestions for different weather conditions. [more…]

In the past two years, a coffee processing method called "rapid chilling to lock in aroma" has become popular in competitions and among enthusiasts, shared and promoted by Sasa Sestic, with the core tool being the Paragon chiller ball. It works by rapidly lowering the temperature of the coffee liquid to slow down aroma volatilization, theoretically preserving more flavor. But how effective is it really? Why do most competitors only rapid-chill the first portion of the coffee liquid? Front Street conducted a comparative test using a pour-over of Huakui and a Strawberry Candy espresso, and found that the aroma difference in the pour-over group was not obvious, while the espresso group showed mouthfeel differences due to temperature changes. This article will break down in detail the principle of rapid chilling to lock in aroma, the results of the comparative experiment, and the two major reasons for only chilling the first half, helping coffee enthusiasts view this technique rationally. [more…]

In the preparation of iced pour-over coffee, should the ice be placed into the server in advance, or added only after brewing is complete? This question appears to concern only the order of operations, yet it may affect the cooling speed of the coffee liquid, the retention of aroma, and the final concentration. Front Street Coffee used a washed Geisha from Colombia's Finca La Divisa as a sample, and by controlling the coffee-to-water-to-ice ratio, grind size, water temperature, and brewing technique, conducted a comparative tasting of the two methods—"ice first" and "ice after"—while recording temperature and flavor changes at different time points. The experiment attempted to answer: does the order of adding ice truly produce a perceivable difference, or is it merely an illusion caused by the time gap? [more…]

American coffee may seem simple, but many details determine the final taste. Based on Front Street's practical experience, this article first explains that a delicious Americano requires a suitable espresso base and proper concentration, then shares three "tricks" to enhance the texture: First, pay attention to the hardness of the dilution water, because water accounts for over 97% of black coffee, and soft water can bring out a more noticeable sweetness; Second, choose whether to keep or remove the crema on the surface of the espresso according to personal preference—removing it improves cleanliness and sweetness, while keeping it provides better body and aftertaste; Third, use ice cubes to directly catch the espresso and then shake to dilute, drawing on the concept of rapid freezing to preserve aroma and lower the temperature. In addition, the article also compares the differences between Italian coffee and American coffee, and recommends several Front Street espresso beans suitable for making non-bitter Americanos, including Strawberry Candy Blend, Commercial Blend, Huakui SOE, and Yirgacheffe Natural Red Cherry SOE. [more…]

Luckin Coffee officially announced on September 23 a collaboration with *JoJo's Bizarre Adventure: Stone Ocean* for October, launching themed events across its nationwide stores. This is not Luckin's first crossover; previous partnerships with Coconut Palm and EDG both sparked heated discussion. Looking across the coffee and tea beverage sector, Manner's collaborations with Helena Rubinstein and LV, Heytea's tie-in with *A Dream of Splendor*, and Nayuki's partnership with *Love Between Fairy and Devil*—brand co-branding has become an important strategy for breaking fixed impressions and achieving customer base complementarity. This article reviews several recent typical cases and includes Front Street Coffee's professional communication channels for coffee enthusiasts to gain deeper insight into industry trends. [more…]

Affogato is an Italian dessert made by pouring hot espresso over vanilla ice cream. Its name means "drowned" in Italian, and it has also come to suggest something so delicious it takes your breath away. This article begins with the etymology, then walks through its eating habits and key ingredient choices in Italy, offers a basic recipe for four, and finishes with five creative suggestions—such as swapping the ice cream flavor, adding nuts or alcohol, and using tea instead of coffee—so readers can easily recreate it at home. [more…]

Cold brew and ice drip have very clear requirements for beans: strong flavor, ample sweetness, and high cleanliness. The passion fruit and blueberry flavors of Front Street Coffee Colombia Sidra slowly emerge in ice drip, with a juicy quality as rich as fruit tea; the sweet aroma of strawberry candy makes a cold brew in which the strawberry gummy character stands out even more at low temperatures. Choose the right beans, and the flavor concentration of cold brew and ice drip [more…]

Jay Chou's 2024 Carnival concert tour Nanjing stop will be held from September 26 to 29 at Nanjing Olympic Sports Center Stadium, with four consecutive days of performances expected to attract 120,000 spectators. At the same time, a Jay Chou-themed coffee shop called "Love in Coffee" has officially opened at Nanjing Xinjiekou Golden Eagle, making its debut alongside the concert. This coffee shop focuses on estate-grade coffee beans and Michelin three-star desserts, with an interior design infused with the poetic fantasy of "Love in Coffee," where greenery and stone intertwine, and mirrored light and shadow create a dreamy atmosphere. Many product names are taken from Jay Chou's classic songs, allowing fans to taste "lyric" drinks while listening to their idol's music. The first Beijing Sanlitun store had previously attracted a large number of fans to check in, and the operator, Star Plus, has close ties with Jay Chou. This article takes you through the features, prices, and fan experience of this celebrity coffee shop. [more…]

Although ice drip coffee and cold brew coffee both fall under the category of cold drinks, they differ noticeably in equipment structure, extraction principles, and operational details. Drawing on practical experience from Front Street Coffee shops, this article systematically breaks down the key points of making ice drip coffee, covering five major factors: coffee bean selection, grind size, drip rate, coffee-to-water ratio, and drinking method, along with specific parameter recommendations. Whether you are a beginner just getting into ice drip or an enthusiast hoping to improve the consistency of your brews, you will find practical operational ideas to reference here. [more…]

Recently, a post about a Luckin Coffee store refusing to provide ice to a customer for her child to use as a cold compress to reduce swelling sparked widespread discussion online. The customer, whose child had suffered a head injury and urgently needed ice, was politely declined by staff citing company policy, and was suggested to seek help at the KFC across the street. Behind this incident lies the dilemma that chain beverage brands face between food safety control and customers' emergency needs. Luckin employees revealed that the rule against providing ice separately stems from a previous incident in which someone sent store ice for testing, triggering an economic dispute. Since then, bar-counter surveillance has been monitoring in real time, and those who violate the rule may face bonus deductions. However, when customers face special emergencies, should there be room for flexibility? Front Street Coffee takes you into an in-depth discussion of this topic. [more…]

As summer temperatures climb, iced coffee becomes a daily necessity, but cold brew filtering is time-consuming and low-temperature extraction is picky about beans—not everyone is willing to wait. Front Street shares a pre-made solution that gets you out the door in one minute—freeze coffee liquid into cubes ahead of time, then dilute with water or milk when drinking, easily recreating iced Americano, iced latte, and iced pour-over. Although overnight freezing loses oils and some aroma, its advantage lies in being simple, convenient, and fast. Below are the extraction parameters, dilution ratios, and step-by-step instructions for three types of ice cubes, along with a Big Belly脐 pour-over demonstration, for time-pressed coffee lovers to reference. [more…]

How many ice cubes should be added to an iced Americano, and how much water should be mixed in for it to be just right? And what kind of coffee beans should be used for an Americano? Starting from Front Street's hands-on perspective, this article analyzes the extraction yield and concentration of espresso, testing the concentration performance and sensory differences of three water ratios—1:4.5, 1:6, and 1:8—group by group, explaining why Front Street ultimately chose 1:4.5 as the Americano serving ratio for the Warm Sun blend. At the same time, it offers specific pairing ideas for coffee, water, and ice in an iced Americano, along with the preparation parameters for a sparkling iced Americano, to help you find an Americano approach suited to the flavor characteristics of your own coffee beans. [more…]