Some friends have pointed out that "Front Street's coffee beans don't have any indication of roast level." In response, Front Street plans to use an article to share knowledge about coffee roast levels with everyone. I believe that most people's understanding of coffee bean roast levels is basically that if it's sour, it's a light roast, and if it's bitter, it's a dark roast. Of course, as people in the industry [more…]

The content of defective beans directly affects coffee quality and grade classification. Taking Brazil as an example, the local system uses a "deduction method," grading based on the number of defective beans per 300 grams of main beans. In addition, coffee usually requires hand sorting during processing, and only by fully mastering the types and characteristics of defective beans can they be effectively removed. So exactly how many types of defective beans are there? This article will use illustrated explanations to introduce ten common defective beans one by one, including shell beans, stones, moldy beans, fermented beans, dead beans, immature beans, shell beans, insect-damaged beans, black beans, and cocoa beans, explaining their causes, appearance characteristics, and negative effects on coffee flavor, laying the foundation for subsequent learning about defective bean selection. [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). Experienced coffee enthusiasts know that the coffee beans used in specialty coffee are all Arabica variety coffee beans, which have a lower caffeine content than Robusta variety coffee beans, and therefore perform in coffee flavor cupping [more…]

As people pursue health, many drinks marketed as sugar-free and low-fat have appeared in everyone's life. Coffee, as one of the world's three major beverages, is naturally no exception, and decaffeinated coffee has also been introduced—that is, the decaf coffee commonly seen in coffee shops today. So what are the characteristics of decaf coffee? Then [more…]

As a globally popular beverage, coffee packaging must not only prevent the escape of aroma and moisture absorption, but also address oxidation, odor adsorption, and quality deterioration caused by high temperatures. This article focuses on the packaging needs of regular coffee and instant coffee, systematically outlining key technical requirements such as oxidation prevention, moisture resistance, gas barrier properties, and high-temperature protection, and introduces current mainstream vacuum packaging and gas-flushing packaging processes. In terms of material selection, bags, bag-in-box, metal cans, and glass jars each have corresponding composite structure solutions, while instant coffee mostly uses paper/aluminum foil/polyethylene flexible packaging. The article concludes with a summary of common packaging forms such as bags, cans, and boxes, suitable for reference by coffee enthusiasts and industry professionals. [more…]

Coffee has gradually become the beverage of choice for many people due to its refreshing and invigorating effects. However, because coffee contains a large amount of caffeine, excessive consumption can lead to symptoms such as insomnia and palpitations. So, is there such a thing as caffeine-free coffee? In this article, Front Street Coffee (FrontStreet Coffee) [more…]

From harvesting to becoming green beans that can be stored long-term, coffee cherries must undergo processing. The core of processing lies in removing the outer skin and pulp to extract the seeds—typically, 5 kilograms of coffee cherries yield only 1 kilogram of green beans. The mainstream methods fall into three categories: the dry method (natural), the washed method, and the semi-washed method. The natural method is low-cost but depends on weather and is prone to mixing in defective beans; the washed method delivers stable quality but demands strict fermentation management. Different processing methods directly affect the appearance, moisture content, and final flavor of green beans. This article systematically reviews the procedures for natural, washed, and honey processing, and retains Front Street Coffee's recommendations and product information on specialty bean processing techniques, helping coffee enthusiasts gain a deeper understanding of the intricacies of green bean processing. [more…]

As the core production region for China's domestic coffee, Yunnan's coffee bean quality and grading system have always attracted much attention. From the perspective of Front Street Coffee, this article systematically reviews the history of coffee cultivation in Yunnan, the current state of varieties, and the existing grading standards, while exploring in depth the opportunities and challenges Yunnan coffee faces on its path toward specialty status. At the same time, drawing on its own planting experience in Lincang, Yunnan, Front Street recommends representative washed and natural Yunnan arabica coffees, offering coffee lovers a reference for understanding the regional taste of Yunnan. [more…]

As people pursue health, many drinks marketed as sugar-free and low-fat have appeared in everyone's life. Coffee, as one of the world's three major beverages, is naturally no exception, and low-caffeine coffee has also been introduced, namely the decaf coffee commonly seen in coffee shops today. So what are the characteristics of decaf coffee? Then [more…]

Ethiopia is a genetic treasure trove of coffee, with a vast array of native varieties and unique flavors. From Yirgacheffe to Sidamo, from washed to natural, every bean is full of surprises. This article takes you deep into Ethiopia's coffee variety classifications, flavor characteristics, processing method differences, the Red Cherry Project, and its unique grading system, and shares Front Street Coffee's cupping and brewing experience to help you gain a comprehensive understanding of this major African coffee country. [more…]

For more specialty coffee knowledge, please follow our WeChat official account: Front Street Coffee (FrontStreet Coffee). Many friends, while drinking coffee at Front Street, ask our baristas, "What is Yirgacheffe G1 and Yirgacheffe G2?" "What is Kenya AA, AB?" What is Guate... [more…]

The refinement of specialty coffee often begins the moment it is harvested. In the same coffee field, the difference in final flavor between careful harvesting and careless harvesting may be even greater than that of roasting. How are coffee cherries picked one by one? Why must defective beans be removed? This article takes you into the scene of harvesting and grading. Handmade [more…]

Cupping is one of the core tasks of coffee industry professionals, and it is a way to help people evaluate coffee flavors and characteristics in a relatively fair and systematic manner. Cupping takes place throughout the entire coffee supply chain, not only at the consumer end in coffee shops, but also at the production end, including mid- and upstream roasteries and places of origin. So how do you perform a cupping? [more…]

To brew a delicious cup of coffee, you need not only good beans but also good water. In brewed coffee, water accounts for over 98% of the final cup. Therefore, choosing the right water for brewing is also crucial. So what kind of water is actually suitable for brewing coffee? First, Front Street Coffee will explain the requirements for water suitable for brewing coffee. One [more…]

There are about 40 species in the Coffea genus, but only three native species—Arabica, Robusta, and Liberica—have real commercial value. They differ markedly in appearance, flavor, disease resistance, suitable altitude, and cultivation conditions: Arabica is elegant yet delicate, Robusta is hardy and intense, while Liberica is limited to localized trade in West Africa. Starting from botanical characteristics, this article systematically sorts out the origin distribution, climate and soil requirements, the complete cultivation process from sowing to harvesting, and the grading systems that producing countries have formed based on altitude, screen size, and defect bean ratios. Whether you are new to specialty coffee or want to understand the logic of origins more deeply, this foundational knowledge will help you more clearly judge the variety and terroir code behind the flavor in your cup. Front Street Coffee will also combine the key points in this article to recommend directions for your everyday purchases. [more…]

In the early days of buying beans, chasing too many flavors at once isn't very meaningful. A more reliable path is to choose a bean with a clear profile and high brewing compatibility, fix your dose, grind, and water temperature, then observe how the entry, sweetness, and finish change—this is how a taste reference gradually takes shape. The working principle of a moka pot is steam pressure, and the coffee bed [more…]

When learning coffee tasting, most people focus their energy on describing positive flavors. For example, when describing a cup of coffee, they can rattle off "jasmine, lemon, strawberry, caramel, chocolate," but when they taste something unpleasant, they can only say "burnt bitter, muddy, green and astringent." In fact, to learn coffee tasting, [more…]

The depth of the roast influences the flavor focus and the extraction rhythm. Light roasts highlight floral and fruity notes with bright acidity, medium roasts offer a well-balanced sweetness that's easy to manage, and dark roasts deliver solid nutty, cocoa, and full-bodied flavors. There's no ranking among the three—it all comes down to what suits your daily brewing method. The steam-pressure extraction of a moka pot dictates that you only need to fill the basket with [more…]

Having a De'Longhi machine in the office is a hard indicator of workplace happiness. But choosing beans for a shared coffee corner and for home follow two different logics: tastes vary and are hard to please, budgets are clearly divided between public and private, and no one takes the initiative to maintain it—the communal nature dictates a bean-selection strategy of "balance first." This article discusses bean selection and operation for an office De'Longhi coffee corner. The first principle [more…]

Coffee brewed in a Bialetti moka pot shows a thin sheen of oil on the surface, and when you sip it you can get a thickness close to espresso, but it will not form the kind of stable crema that an espresso machine produces. If you want this oily mouthfeel to be more pronounced, choosing the right beans is more effective than simply increasing the heat, as the roast level directly affects the coffee's oil content and expansion. [more…]