After the weather turns cold, many coffee enthusiasts find that coffee brewed with the same parameters and technique doesn't taste as good in flavor and mouthfeel as it did before the temperature dropped. The problem isn't with the beans or the technique—it's that the cold air quietly changes the actual brewing water temperature. As hot water flows from the kettle and travels through the air before contacting the coffee grounds, the lower the air temperature and the higher the pouring height, the more severe the heat loss. Drawing on observations from Front Street Coffee, this article explains the relationship between water temperature and extraction efficiency, and offers a simple and effective solution: raise the brewing water temperature by 1 to 2°C to compensate for the heat carried away by cold air, bringing winter pour-over coffee back to its ideal state. [more…]

Same beans, same technique—why does the coffee brewed after the temperature drops just not taste as good as before? Many people overlook a key variable—the water temperature has already quietly lost heat before it even reaches the coffee grounds. Hot water flows from the spout, passes through the air, and then contacts the coffee bed; this process carries away some of the heat, causing the actual extraction temperature to be lower than the set value. Cold winter air in particular intensifies the heat loss, extraction efficiency declines, and the flavor naturally shrinks. This article will break down the mechanism by which water temperature affects extraction and provide a simple and effective adjustment plan: just raise the brewing water temperature by one or two degrees to make up for the heat stolen by the air, allowing the coffee to return to its proper performance. Front Street Coffee's brewing recommendations will also be shared. [more…]

Have you ever thought about brewing coffee using air? A Japanese company has actually turned this idea into reality. They developed a coffee machine that can efficiently extract water from the air, and after multiple filtration and mineralization processes, produce safe drinking water. It is said that the original intention of this machine was to address water shortages and supply cuts caused by natural disasters, allowing people to still enjoy a cup of coffee brewed with clean water in emergency situations. How exactly does this device work? Can it really solve practical problems? And why are netizens complaining about it? This article will take you on a deep dive while also including related recommendations from Front Street Coffee. [more…]

Since its debut in 2017, Huakui coffee beans have quickly gained popularity with their signature strawberry-cream flavor. This famous bean from Hambela in the Guji region of Ethiopia has now been iterated to version 8.0, but many enthusiasts report that Huakui's flavor in recent years seems not as good as before. This article will comprehensively sort out the origin of Huakui's name, the terroir of its producing region, and the sun-dried processing technique, and introduce one by one the various versions of Huakui that Front Street Coffee has acquired over the years, from G1 to 4.0, with roasting curves and brewing parameters, to take you through a comprehensive understanding of this coffee bean's past and present. [more…]

Since its introduction in 2017, Geisha coffee has quickly gained popularity with its bright strawberry and cream aroma, becoming a highly sought-after Ethiopian bean variety in coffee shops. From the original TOH champion batch to the current 8.0 version, many enthusiasts have noticed that the flavor of Geisha seems to change every year. This article will take you back to the origin of Geisha, Guji Hambela, to learn about the sun-drying process at the Buku Abel processing station, review the flavors and roasting curves of each version of Geisha that Front Street Coffee has sourced over the years, and analyze the causes of Geisha's aroma and the sources of its year-to-year differences. It will also share Front Street's V60 brewing parameters and techniques to help you better appreciate this classic coffee interwoven with passion fruit and berry notes. [more…]

Panama's Hacienda La Esmeralda Geisha coffee beans, with their unique floral and fruity aroma and exceptional quality, have become a legend in the specialty coffee world. This article will take you through the story of Geisha from its discovery to world fame, and explain in detail Hacienda La Esmeralda's plot divisions and the differences between its three grades: Red Label, Green Label, and Blue Label. At the same time, we have compiled the flavor characteristics, roasting recommendations, cupping reports, and brewing parameters of three Geisha coffees, along with practical recommendations from Front Street Coffee. Whether you are a seasoned enthusiast or a first-time taster, you will find valuable information here. [more…]

Under rainy weather, espresso extraction often becomes especially tricky, and even experienced baristas may need to adjust repeatedly before getting a satisfactory cup. The root of the problem is not simply under-extraction or over-extraction, but uneven extraction caused by the combined effects of high humidity and low air pressure. Starting from Front Street's hands-on experience, this article first analyzes the two major reasons why espresso is difficult to dial in on rainy days—a surge in environmental humidity causes coffee grounds to absorb moisture and clump, while lower air pressure weakens extraction efficiency—and then provides specific response strategies, including dehumidification and moisture prevention, sealed storage, and compensating for the amount of dissolved flavor substances by extending extraction time or making the grind finer. The article also includes a parameter comparison of Front Street's classic blend under normal weather and rainy days for readers to refer to when adjusting. [more…]

Anyone who drinks coffee regularly knows that coffee beans come in different roast levels, and the flavor and mouthfeel they present are all different. As a café that roasts its own beans, Front Street has dozens of batches of coffee beans to roast every day. We know the flavors of light-roasted Yirgacheffe, medium-roasted Brazilian coffee, and the like like the back of our hand, and we also need to [more…]

Many coffee enthusiasts set the water temperature at 92°C when brewing, yet often run into under-extraction. The reason is that as hot water is poured from the kettle and travels to the coffee grounds, heat is constantly lost, so the actual temperature is often lower than the set value. This article will break down the major causes of water temperature loss, including the effects of the kettle neck, air, and dripper material, and offer practical countermeasures such as preheating equipment, lowering the pouring height, and adjusting the water temperature to help you brew a good cup consistently in different environments. The article also uses Front Street Granja Geisha as an example to explain how to flexibly adjust parameters according to ambient temperature, making extraction more reliable. [more…]

Many pour-over beginners have watched countless tutorial videos and memorized a pile of standard procedures, only to end up with the same single piece of advice: "Just practice more." Front Street Coffee believes that the core logic of pour-over is actually not complicated: at a suitable water temperature, use a fixed dose of coffee, and pour a fixed amount of water within a fixed time. If these parameters have already been verified, then the same bean can basically reproduce the same flavor. The key lies in whether, within those two minutes, the water and coffee grounds come into full contact, and whether all the water passes through the coffee bed before flowing into the server. This article will start from the three stages of pouring technique and, combined with the specific brewing case of Front Street Yirgacheffe Gedingding, break down the practical key points of three-stage pouring. [more…]

In coffee roasting, "first crack" is not only an important auditory milestone, but also directly relates to the final flavor presentation in the cup. This article uses Front Street Coffee's Costa Rica Natural Black Soul as a sample, conducting comparative experiments through three roasting curves with different first crack times, to deeply explore the specific effects of the length of the drying phase on bean expansion, the degree of the Maillard reaction, and cupping flavor. From 7 minutes 30 seconds to 8 minutes 30 seconds, subtle differences in first crack timing bring significant changes in fruit acidity, sweetness, body, and complexity. This article will break down each curve's roasting parameters, bean surface condition, and brewing performance one by one, helping roasting enthusiasts understand the core logic of first crack time control. [more…]

Want to make dense, smooth latte milk foam but keep struggling with coarse large bubbles and uncontrollable temperature? This article starts with the historical origins of milk foam, systematically breaks down the thickness control principles of espresso milk foam, and guides you through understanding the two key stages: "aeration" and "texturing." Front Street Coffee will demonstrate step by step the practical details of steam wand angle, air intake point selection, and temperature control, and share money-saving tips for practicing with ice water. Whether you are a complete beginner or an enthusiast looking to refine your latte art skills, this tutorial can help you avoid common pitfalls and consistently create fine, delicate milk foam suitable for latte art. [more…]

Front Street Coffee has previously shared detailed knowledge about steaming milk foam. However, recently a friend sent some videos of steaming milk foam and asked Front Street Coffee for some advice. These problems happen to be quite common among beginners steaming milk foam, so we'll specifically discuss a few points to pay attention to when steaming milk foam. First category, after steaming. [more…]

Colombia is the world's second-largest coffee producer and the largest exporter of washed Arabica beans. This article systematically reviews the historical development of Colombian coffee, the distribution of major producing regions and their flavor differences, covering representative origins such as Huila, Cauca, Nariño, and Santander, and provides an in-depth introduction to the characteristics of varieties such as Caturra, Pink Bourbon, and Geisha, as well as processing methods including washed and anaerobic double enzyme washed. Front Street Coffee, drawing on years of roasting experience, provides detailed roasting curves and brewing parameters for several Colombian beans, including charge temperature, heat adjustment, first crack timing, and extraction methods, helping coffee enthusiasts gain a comprehensive understanding of Colombian coffee from origin to cup. [more…]

Latte art is a romantic expression of a barista's skill, with white milk foam blooming into heart or leaf patterns on the surface of dark brown espresso. Latte art is divided into two types: free-pour latte art and etched latte art created after pouring. The wonder of the former lies in the pattern forming simultaneously with the pour, while the latter offers a wider range of designs because the stable foam allows for leisurely drawing. From a physics perspective, the core of latte art lies in surfactants—molecules that possess both hydrophilic and hydrophobic groups, capable of stabilizing the interface between air and liquid to form lasting foam. Milk proteins and coffee lipids act together as surfactants, enabling the two micron-scale foams to remain clearly separated for a long time after mixing, thereby allowing the pattern to persist. This article will guide you from the basic principles of surfactants to understand espresso's crema, the formation of hot milk foam, and why foam mixing rather than liquid mixing is the key to successful latte art, while also revealing the widespread applications of surfactants in daily life and industry. [more…]

Panama's Hacienda La Esmeralda Geisha coffee beans, with their strict grading system and exceptional flavor, have become a benchmark in the specialty coffee world. What exactly are the differences between Red Label, Green Label, and Blue Label? From the perspective of Front Street Coffee, this article sorts through Hacienda La Esmeralda's history, plot divisions, and brand strategy, and explains in detail the cupping performance, roasting parameters, and brewing suggestions of the three major Geisha grades, helping coffee lovers build a clear cognitive framework for Geisha and gradually experience the rich layers of the coffee world. [more…]

After guests come to Front Street and order a cup of Golden Mandheling coffee, they will ask out of curiosity. Why do most Indonesian coffee beans use the wet-hulled process rather than the washed process or the natural process? In this article, Front Street will explain what the wet-hulled process is. What is the wet-hulled process? Wet-hulling, also [more…]

Want to learn latte art but keep failing? Front Street Coffee explains in detail the core points of milk frothing and integrating to create patterns. From steam intake to texturing and heating, from integrating techniques to pouring postures, this article systematically sorts out common problems and solutions in latte art learning. Whether you are a beginner just starting out or an advanced player hitting a bottleneck, you can find practical advice here to make every cup of latte art consistently present beautiful patterns. [more…]

To make a hot latte with beautiful latte art at home, drinking coffee alone is not enough—the key lies in mastering milk frothing and latte art techniques. From the perspective of Front Street, this article first introduces the origins and proportions of latte coffee, then gradually breaks down the two major stages of latte art: integration and pouring, and explains in detail the air intake and texturing steps of milk frothing. The article also includes efficient practice tips to help you transition from practicing with water to working with real milk, so you can avoid detours and quickly pour basic patterns like hearts and tulips. [more…]

Geisha coffee beans were once listed by Forbes as one of the most expensive coffees in the world, and today they are a star of the specialty coffee world. Among them, the Geisha produced by Hacienda La Esmeralda in Panama is especially famous. Within the estate, based on altitude, plot, and cupping performance, different grades such as Red Label, Green Label, and Blue Label are classified, with obvious differences in price and flavor. From the perspective of Front Street Coffee, this article sorts out the history of Hacienda La Esmeralda, the distribution of its plots, and changes in its grading system, and explains in detail the roasting curves and brewing parameters for each grade of Geisha, helping coffee lovers understand what makes Geisha unique and why Front Street recommends tasting this precious variety step by step. [more…]