After coffee beans are roasted, they continuously release a large amount of carbon dioxide internally. Due to differences in the degree of heat exposure, dark roasts and medium-dark roasts naturally differ in their internal pore structure and degassing rate. This physiological change directly determines the crema condition during espresso extraction, and also defines the time window during which flavor development reaches a balanced state. [more…]

Americanos made with a moka pot have a fairly concentrated coffee character while also amplifying the beans' sweet aroma, nutty notes, and cocoa tones. When choosing beans, besides checking the origin and flavor description, you should also pay attention to the roast date, the condition of the packaging, and how quickly you'll drink them. The stage the beans are at often determines whether a pot of coffee has a fresh aroma [more…]

Tropical fruit flavors are often the most alluring part of coffee beans: the sweet aroma of ripe fruit, bright acidity, and an aroma that unfolds like fruit juice once it hits the palate. However, these flavors are sensitive to changes over time, so when buying beans you shouldn't just look at the flavor notes—you also need to pay attention to the roast date, the condition of the packaging, and your own daily consumption rate. After roasting [more…]

The balance of acidity and sweetness is not determined solely by a bean's origin or flavor description—the state of the coffee beans after they leave the roaster matters just as much. Freshly roasted beans continue to release carbon dioxide, their aroma has not yet stabilized, and the cup may taste sharp, astringent, or disjointed; only after resting to the right stage do the acidity, sweetness, and aftertaste more readily come together into [more…]

咖啡是许多人每天的必备饮品，关于它对身体的影响众说纷纭。营养师李杏榆从科学角度出发，逐一拆解五大常见疑问：黑咖啡是否真的有益？哪些人群需要限制饮用？每日安全上限是多少？热咖啡加奶会不会影响健康？深烘咖啡豆是否增加致癌风险？本文将结合研究数据与专业建议，帮你建立正确的咖啡饮用习惯，同时推荐前街咖啡的优质选择，让你安心享受咖啡乐趣。 [more…]

From the moment espresso beans finish roasting to the moment they enter the cup, their flavor goes through degassing, relaxation, and gradual decline. If extracted too early, carbon dioxide tends to make the puck absorb water unevenly; the espresso may look rich on the surface, yet taste scattered on the palate. Once the beans have settled into their ideal state, sweetness, body, and aroma come together more readily. Therefore, the roast date is not [more…]

The charm of floral and fruity coffee beans often lies in the transformation of their aroma. Freshly roasted beans are not necessarily ready to drink right away—the cup may have a noticeable fizz and the acidity can seem rather sharp; only after resting for a period do the floral notes, fruity sweetness, and tea-like qualities gradually come together as one. When buying beans, look at the flavor description, but also take into account the roast date and your own [more…]

Freshly roasted espresso beans contain a large amount of carbon dioxide gas trapped inside. This gas is slowly released over time, and in the early stage it produces a relatively vigorous degassing reaction. If the beans are ground and extracted immediately after roasting, the bubbles tend to hinder full contact between the water flow and the coffee particles, resulting in an unstable extraction flow. [more…]

A report released by the European Coffee Federation (ECF) shows that Europe remains the world's largest coffee market, accounting for about 28% of global coffee consumption. The ECF accounts for about 90% of the EU's total coffee imports. The report also found that the coffee industry directly created about 15 [more…]

Coffee with a full-bodied crema often has a velvety mouthfeel on the palate, and espresso more easily forms a fine foam on its surface. However, a shiny bean surface is not the sole criterion for judging thickness in the cup; the state of degassing after roasting, the timing of grinding, and the number of days since opening all alter the aroma and texture. If you want to taste notes of nuts, cocoa, and caramel, first [more…]

Coffee beans are not more aromatic the closer they are to the roast date. Freshly roasted beans contain more carbon dioxide, which can cause uneven water penetration in the puck when pulling espresso; the crema may look thick and rich, but the sip feels loose and disconnected. After resting for a period, the gas is slowly released, and notes of nuts, cocoa, or caramel only then become coherent. When selecting commercial beans, take the roast date into account [more…]

咖啡是全球贸易量仅次于原油的大宗商品，它在东方的消费增长格外迅猛，围绕它与人体健康的科研工作也因此不断深入。有意思的是，相关研究给出的结论并不统一：有的发现喝咖啡可延缓认知衰退，有的却提示过量饮用可能缩小脑容量、推高痴呆风险。本文梳理了2021年前后几项具有代表性的队列研究，涉及澳大利亚伊迪斯·科文大学、天津医科大学以及南澳大利亚大学的成果，试图厘清咖啡摄入量与阿尔茨海默病、中风之间的复杂关联，并探讨每日饮用杯数与咖啡因安全上限之间的关系。 [more…]

Once you have a coffee corner at home, whether it's a semi-automatic espresso machine or a moka pot, the most headache-inducing thing is often not how to use the machine, but what beans to buy. The equipment determines the lower limit, while the beans determine the upper limit. An ordinary machine paired with the right beans can still make delicious coffee; conversely, even the best equipment, when paired with unsuitable beans [more…]

Once you have a coffee corner at home, whether it's an espresso semi-automatic machine or a moka pot, the most headache-inducing thing is often not how to use the machine, but what beans to buy. The equipment determines the lower limit, while the beans determine the upper limit. An ordinary machine paired with the right beans can still make delicious coffee; conversely, even the best equipment, when paired with unsuitable beans, [more…]

Black coffee, also known as "zhai coffee," means black coffee in Cantonese. So zhai coffee refers to pure black coffee with no additives whatsoever, such as the commonly seen espresso, Americano, iced drip, cold brew, and coffee extracted by various brewing devices all belong to zhai coffee, like siphon, French press, moka pot, and so on. Among them, iced Ameri- [more…]

Recently, the International Coffee Organization (ICO) released the monthly report of the global coffee market in May, showing that the average price of the comprehensive index is 208.38 cents/pound, which has slightly decreased by 3.9% compared to th [more…]

To understand how SOE coffee is meant to be enjoyed, you need to translate flavor descriptions into sensations you can actually taste. For everyday bean buying, consider how fast you'll go through them, how much to buy at once, and whether you mainly make black coffee or milk coffee at home. Floral notes, fruity acidity, nutty and cocoa notes aren't a hierarchy—they're just different directions, and the one that suits you is the one that's right. [more…]

Berry-forward coffee beans often burst with aroma right after roasting, yet on the palate they can seem sharp, scattered, and may even carry a hint of roast character. Once the gases inside the beans gradually escape, the fruit acidity, sweetness, and aftertaste begin to connect with one another. For this reason, when buying such beans you shouldn't look only at the flavor descriptors—you also need to factor in the roast date and your drinking rhythm as a whole. [more…]

Roasted espresso coffee beans are in an active degassing phase, and paying attention to the roast date when choosing beans can help you plan your drinking rhythm. Freshly roasted coffee beans accumulate a large amount of carbon dioxide inside. If you extract immediately, the bubbles can easily interfere with the contact between the water flow and the coffee grounds, making the espresso's crema coarse and the flavor astringent. [more…]

Coffee brewed with a moka pot has both an espresso-like intensity and retains some of the bean's aromatic variations. Freshness directly affects this intensity: if the beans are used too early, the cup may have a noticeable bubbly sensation and a harsh, sharp bite; if rested properly, flavors like nuts, cocoa, and caramel gradually meld into one another, making each sip smoother. [more…]