Mandheling coffee is produced on the island of Sumatra in Indonesia, Asia, and is also known as "Sumatra coffee." It has a rich taste, combining aroma, bitterness, sweetness, and mellow body, with a slight smoky flavor, making it a favorite of many. Compared with other Indonesian coffees, Mandheling is often drunk as a single-origin black coffee because of its mellow aroma, and generally it is not [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 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 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…]

咖啡生豆的分级体系直接影响烘焙效果与咖啡品质。本文系统梳理了两种主流分级方式：以筛网号数区分豆粒大小，以及依据种植海拔划分等级。同时汇总了肯尼亚、埃塞俄比亚、哥伦比亚、巴西、危地马拉、萨尔瓦多、夏威夷、牙买加和印尼等产地的常见分级标准与代号。无论是大宗交易还是精品咖啡，了解这些分级规则都有助于更准确地判断生豆特性，前街咖啡也将这些知识融入日常选品与烘焙实践中。 [more…]

Blue Mountain coffee has long been regarded by Chinese consumers as synonymous with premium coffee, yet as the specialty coffee wave has advanced, its halo seems to have faded somewhat. This article will systematically sort out the grading standards for Jamaican Blue Mountain coffee beans, the historical and practical reasons behind their persistently high prices, and how to identify authentic Blue Mountain coffee, along with a detailed description of its flavor characteristics and brewing recommendations. At the same time, the article will also introduce the origin background and certification information of the Blue Mountain No. 1 coffee beans sold by Front Street Coffee (FrontStreet Coffee), helping coffee enthusiasts gain a more comprehensive understanding of this legendary coffee. [more…]

Colombian coffee occupies an important place in the world of specialty coffee, and its green bean grading system is based primarily on defect rates and bean screen size. When buying Colombian coffee, what exactly do the words "Supremo" and "Excelso" commonly seen on burlap sacks mean? This article will systematically sort out the grading rules for Colombian green coffee beans from multiple angles, including export standards, defect scoring, and screen-size classification, and explain the specific differences among the three grades UGQ, EP, and Supremo. At the same time, the article will also introduce common Colombian coffee bean brands on the market, including product information recommended by Front Street Coffee, to help coffee lovers more clearly understand the grade and quality of the bag of beans in their hands. [more…]

What coffee beans are suitable for an espresso machine? Espresso is just one of many coffee extraction methods. No matter what kind of coffee is used, as long as it is made with an espresso machine, it can be called espresso. As long as it tastes good, whether it is single-origin coffee or a blend, it [more…]

The scoring criteria for coffee cupping. The cupping of coffee beans was initially to ensure whether the quality of the coffee beans that are about to enter the trade is qualified. With the passage of time, after the concept of specialty coffee was b [more…]

In Sumatra, there is a very complex local system for distinguishing the Mandheling coffees produced there. The most common approach is to differentiate various Mandheling coffees by naming them according to different regions, green bean traders, and processing methods. Examples include Front Street Lintong Mandheling, Front Street Tiger Mandheling, Front Street Golden Mandheling, Front Street Aged Mandheling, and Front Street [more…]

Coffee belongs to the Rubiaceae family, with over a hundred known species, but commercial cultivation is dominated by three major types: Arabica, Robusta, and Liberica. Among them, Arabica, with its outstanding aroma and flavor, accounts for over seventy percent of global production and is the core raw material for single-origin and specialty coffee. This article will systematically review the varietal characteristics, advantages and disadvantages, and sub-varieties of Arabica, and introduce one by one the cultivated varieties, processing methods, grading standards, and flavor profiles of representative producing countries such as Brazil, Colombia, Panama, Guatemala, Costa Rica, Jamaica, Ethiopia, Kenya, and Indonesia. It will also incorporate Front Street Coffee's sourcing experience and recommendations to help coffee enthusiasts build a complete framework for understanding origins. [more…]

Before the emergence of fruity-acid coffees like Yirgacheffe and Geisha, the coffee sold on the market was mainly medium or darker roasts, with a rich, full-bodied flavor and caramelized aroma. Among them, Mandheling was known as the most full-bodied single-origin coffee. Nowadays, Mandheling coffee is not rare, and its price is not expensive, but if you want to buy a high-value, high-quality [more…]

We know that coffee bean grading methods are usually based on the actual conditions of the growing country. Some are graded by bean size, such as Kenyan coffee; some by altitude, such as Blue Mountain coffee; and some by defect rate, such as Ethiopian coffee. As the gene pool of Arabica, Ethiopia has a wide variety of coffee varieties. [more…]

Mandheling coffee has always been a representative among many strong and bitter single-origin coffees, known for its unique herbal spice aroma, full body, and warm, sweet aftertaste—leaving a lasting impression. Many friends who have never tried it are curious about how this coffee with such a distinctive flavor actually tastes. If you haven't yet experienced the taste of Mandheling, it's recommended to start with the entry-level Front Street In [more…]

When it comes to impressions of Mandheling coffee, Front Street Coffee believes that beyond its rich, mellow body and steady roasted aroma, people also associate it with a unique "Mandheling flavor"—herbal notes. The herbal taste of Mandheling refers more to aromas reminiscent of herbs, earth, and wood, which emerge after the mellow fragrance, uniquely [more…]

The darker the coffee is roasted, the more the acids in the coffee are destroyed, replaced by more caramel flavors, smoky notes, and bitterness. Correspondingly, the coffee tastes fuller-bodied and thicker, and Mandheling is one of the most famous examples. Deep-roasted Mandheling coffee not only has unique spices, herbs, [more…]

When it comes to Mandheling coffee beans, everyone surely knows that Indonesia's most famous coffee beans are the Golden Mandheling coffee beans produced by PWN. However, this coffee bean was not originally a PWN product, but a product produced by the Japanese. So why is it that when people mention Front Street Golden Mandheling, their first reaction is Indonesia's P [more…]

Mandheling coffee beans can be said to be the signature of Indonesian coffee beans, and in many cases the word Mandheling represents premium Indonesian coffee beans. Many coffees also regard Mandheling as the representative of Indonesian coffee, or even Asian coffee, with a flavor profile of rich chocolate, nuts, herbs, and spices in a thick, syrupy tone. Mandheling coffee [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee) Have you ever noticed that beginners often find Mandheling very bitter, and espresso also very bitter, so sometimes they even think the two should taste the same, or they may make some comparisons in their minds? [more…]

Have you ever noticed, when drinking coffee, that most Indonesian coffees are simply named after their producing islands, such as Java, Sulawesi, and Sumatra? Yet one famous coffee is the exception—it is Mandheling coffee from the island of Sumatra. Why is Sumatran coffee called "Mandheling"? And [more…]