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…]

More and more friends are now joining the ranks of pour-over coffee enthusiasts, and with so many coffee beans to choose from, many are once again struggling with choice paralysis. Generally speaking, the coffee beans used for pour-over coffee are single-origin beans. Single-origin beans refer to beans from a single region (from one estate/cooperative, or from multiple estates/cooperatives within a single origin). [more…]

Blooming is an important step in brewing coffee, and there's a popular saying that "you can tell if a coffee will taste good just by looking at its bloom." So when people learn to brew coffee, they intentionally or unintentionally "perfect" a flawless "coffee burger." But if you understand the logic behind blooming, you'll discover that blooming is actually [more…]

Front Street often encounters many pour-over beginners asking a question: Why does pour-over coffee need blooming? The most indispensable step in pour-over coffee is the blooming phase. The purpose of blooming is to allow the coffee to release gases and ensure even extraction, and it also clearly reveals whether the beans being brewed are fresh. Front Street focuses on freshness [more…]

Freshly roasted single-origin espresso beans trap a large amount of carbon dioxide gas inside. This gas builds up intense internal pressure in the early stages after roasting. If the beans are ground and brewed straight out of the roaster, the gas hinders full contact between the hot water and the coffee particles, producing a sharp, harsh acidity in the cup, or causing the espresso crema [more…]

Front Street Coffee often encounters many pour-over beginners who ask a question: Why does pour-over coffee need blooming? The most indispensable step in pour-over coffee is the blooming stage. The purpose of blooming is to allow the coffee to release gases and ensure even extraction, and it also clearly reveals whether the beans being brewed are fresh. Front Street Coffee focuses on fresh [more…]

Many people focus on roast level and bean variety when choosing coffee, yet overlook the true fuel for crema: carbon dioxide. All the bubbles in crema come from gases accumulated inside the beans during roasting. After the beans leave the roaster, they continue degassing every day, and the remaining gas determines the thickness of the crema. In other words, even the best dark-roasted beans [more…]

Have you ever had this experience: you buy coffee beans that have been roasted not long ago, can't wait to open them and brew a cup, only to find the extraction is very unstable and the flavor performance is less than ideal. A few days later, when you brew again, it tastes better. What is the reason for this? In this article, Front Street Coffee takes you through what "bean resting" means. Coffee beans [more…]

The dense, golden layer of crema on the surface of an espresso is essentially a foam formed when carbon dioxide inside the coffee beans, carrying aromatic oils, is emulsified under high-pressure water. Freshly roasted coffee beans trap a large amount of gas inside, and this gas is slowly released over time, determining the thickness and condition of the crema during extraction. Understanding [more…]

Freshly roasted single-origin coffee beans hold a large amount of carbon dioxide gas trapped inside. In the first days after opening, this gas rushes out violently on contact with water, forming a dense layer of foam. Too much gas prevents water from fully contacting the coffee grounds, so aromatic compounds cannot dissolve out smoothly. Give the beans a quiet period to degas. [more…]

Friends who brew their own coffee may already have some concept of bean resting. It doesn't matter if you haven't heard of it before—below we'll explain why coffee needs resting and how long it should rest. When everyone is brewing coffee, the moment water touches the coffee grounds, the coffee begins to bubble and swell, "watching the coffee slowly [more…]

Freshly roasted coffee beans accumulate a large amount of carbon dioxide gas inside, and this gas is slowly released over the following days. For espresso extraction, the state of gas release is directly related to the fineness of the crema and the overall expression of flavor. Understanding the internal changes in coffee beans at different stages can help us [more…]

The hazelnut-colored foam on the surface of an espresso is often fuller at a certain period after roasting is completed. If the beans are put on the machine too early, the gas releases too quickly, the foam may be coarse and mottled in color, and the flow rate is also difficult to control; if left too long, the carbon dioxide decreases, and the crema layer becomes thinner. If you want to drink fine, dense crema, when choosing beans, besides looking at the blend [more…]

Front Street Coffee (FrontStreet Coffee) entered the coffee industry in 2013, and has come step by step from coffee cultivation and coffee roasting to coffee service. Today, the more than 30 coffee beans displayed in the shop are only Front Street Coffee (FrontStreet Cof [more…]

After coffee beans are roasted, a large amount of carbon dioxide gas accumulates inside the beans, and this gas is slowly released over time. When extracting espresso, overly active gas can hinder uniform contact between the water flow and the coffee grounds, which can easily lead to channeling during extraction or excessively coarse foam. Understanding [more…]

The roast level of coffee largely determines its flavor profile. When buying single-origin coffee beans, you may notice that the label indicates the roast level, such as light roast, medium roast, or dark roast. Some also label them as Cinnamon Roast, City Roast, French Roast, and so on, which leaves many [more…]

In freshly roasted and freshly brewed coffee, there is a crucial small detail: baristas emphasize the need to "bloom." There is even a saying in the coffee community: "Bloom well, and brewing will be trouble-free," forming a positive link between blooming and brewing. So what is blooming, and how do you bloom? Careful [more…]

To achieve good flavor, we should choose freshly roasted coffee beans—this is a consensus we reached long ago. Based on experience, when coffee beans are in the "too fresh" stage (0–2 days after roasting), we "rest" them, meaning leaving them untouched until they have degassed slightly before brewing and extracting, so that the coffee's flavor will [more…]

After coffee beans expand from the heat in the roasting drum, their internal porous structure stores a large amount of carbon dioxide gas. Freshly roasted beans are in an active degassing phase; if water is poured in to brew at this point, the violently escaping bubbles will block even contact between the hot water and the coffee grounds, and the extracted flavor easily tastes green and muddled. [more…]

After roasting is complete, coffee beans accumulate a large amount of carbon dioxide gas inside. When freshly roasted, this gas is highly active, and during brewing it tends to produce vigorous bubbles that hinder the water from fully contacting the coffee grounds. Understanding the roast date and the degassing process is the starting point for appreciating the rich layers of a blended coffee. Blended beans of different roast levels have different degassing rhythms. [more…]