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…]

The coffee beans themselves are the biggest factor affecting coffee flavor. If you don't choose high-quality coffee beans, you won't be able to taste good coffee. Today, I'll share some practical tips for beginners on selecting and identifying coffee beans. Coffee bean brands suitable for beginners to learn about For inexperienced newcomers, the complicated cof [more…]

If you often drink pour-over coffee, Front Street believes you've probably seen friends who can tell washed and natural processed coffee apart at a glance, or with a single sip. Because they distinguish them so quickly, many friends are amazed and wonder how on earth they do it. Just yesterday, [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…]

Mandheling is not the name of a region, place, port, or coffee variety. Its name actually comes from a mispronunciation of the Indonesian Mandailing ethnic group. During World War II, when Japan occupied Indonesia, a Japanese soldier drank a rich and mellow [more…]

In the world of specialty coffee, Jamaican Blue Mountain and Ethiopian Yirgacheffe stand as the ultimate representatives of two distinct styles. The former is renowned for its nutty and chocolatey notes and its balanced ratio of acidity, sweetness, and bitterness, while the latter has won over countless palates with its jasmine florals and bright fruity acidity. Which one is better? Front Street Coffee believes that drinking coffee is an extremely subjective matter—rather than debating who comes out on top, it is better to analyze them one by one, from origin terroir, variety characteristics, to processing methods, and then make a judgment based on your own taste preferences. This article will guide you through a complete understanding of the unique qualities of these two coffees, covering producing region background, grade classification, variety differences, brewing parameters, and more. [more…]

Blue Mountain coffee is produced in the Blue Mountains of Jamaica at elevations between 910 and 1,700 meters. The variety is Typica, and it is known for its balanced acidity, sweetness, and bitterness, full and solid body, long-lasting sweet aftertaste, and absence of burnt bitterness. Because annual production is limited, authentic Blue Mountain No. 1 coffee beans in China usually sell for 150 to 400 yuan (100 to 200 grams), while products labeled "Blue Mountain flavor" or "Blue Mountain blend" are not true Blue Mountain coffee. This article systematically introduces the methods baristas use to identify authentic Blue Mountain No. 1 from perspectives such as the wooden barrel and certificate, bean size and uniformity, appearance characteristics, and raw bean color. It also compares the flavor performance of washed and natural processing methods and shares Front Street Coffee's brewing parameters and techniques to help enthusiasts build a clear identification framework. [more…]

(Top left) Among the thousands of different coffee varieties, it's inevitable that some beans have rather unusual names! Unlike most beans such as Bourbon and Typica, which have conventional names, these are like secret agents, each with their own code number. For example, varieties named with letters plus numbers. [more…]

Recently, due to the crazy discounts of Double Eleven, many friends have gathered to place orders online, and Front Street Coffee's Taobao Tmall customer service has therefore received more coffee-related questions than ever before. Questions related to grinding on demand, such as "how long can coffee beans last after being ground into powder" and "within how many days after grinding is it best to finish drinking it," are among the questions these friends have been consulting about recently. [more…]

It's a well-worn topic that freshly ground coffee brews up more fragrant, and we're also well aware of how important freshness is to coffee flavor. But sometimes, to avoid hassle, many friends have the merchant grind the coffee beans into powder before shipping when buying beans, because then when it's time to brew, there's no need to worry about what grind setting to use, nor [more…]

Customers who frequently come to Front Street Coffee for a cup sometimes ask the baristas whether there's a lazy-friendly coffee machine suitable for home use, preferably at a reasonable price. Well then... let's take a look at the American-style drip coffee maker! The drip coffee maker is currently one of the more commonly used [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). From the perspective of coffee flavor, pre-grinding coffee beans will accelerate the loss of coffee flavor. This is also the reason why most coffee shops, including Front Street, recommend freshly ground coffee. For domestic pour-over [more…]

Customers who frequently come to Front Street Coffee sometimes ask the baristas if there's a lazy-person coffee machine suitable for home use, preferably at a reasonable price. Well then... let's get to know the American drip coffee maker! The American drip coffee maker (Drip Coffee Maker) is currently one of the more commonly used [more…]

Recently, a friend asked Front Street Coffee: "Why should the air valve be sealed after coffee beans are ground into powder? Wouldn't that prevent the carbon dioxide inside the package from escaping?" The meaning of the exhaust valve on coffee packaging. Front Street Coffee immediately seals and packages the coffee beans after roasting and cooling, which can minimize the loss of coffee bean flavor. [more…]

Front Street Coffee (FrontStreet Coffee) shops focus mainly on pour-over single-origin coffee, with more than 50 different single-origin coffee beans from different regions alone. What kind of pour-over equipment can best bring out the perfect flavor of these beans is also a question Front Street Coffee (Front [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). Customers who often come to Front Street for coffee sometimes ask the baristas whether there is a lazy-person coffee machine suitable for home use, preferably at a reasonable price. Well then… let's take a look at the American drip coffee maker! [more…]

For more specialty coffee knowledge, please follow our WeChat official account: FrontStreet Coffee. Italy is a country of coffee culture. The espresso that has spread across the globe is the soul of coffee and a treasure Italy has given to the world. Espresso, as the name suggests, is a [more…]

For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). For more specialty coffee beans, please add our private WeChat Front Street Coffee (FrontStreet Coffee), WeChat ID: qjcoffeex. With the development of specialty coffee culture [more…]

From light to dark roasts, the flavor focus gradually shifts from floral and fruity notes with bright acidity toward sweetness and balance, and then to nutty, cocoa, and full-bodied notes, with the extraction rhythm changing accordingly. None is inherently superior—whatever suits your way of drinking is the right choice. The moka pot works by steam-pressure extraction; simply fill the filter basket with ground coffee, no need to [more…]

Front Street Espresso is a coffee beverage with a strong taste. It is made by forcing hot water at around 92 degrees Celsius, under 9 bars of high pressure, through finely ground coffee powder to extract the coffee liquid. Many customers are at a loss when buying coffee beans and don't know how to choose. Front Street [more…]