Search Results for: Carbon Dioxide
Pour-over coffee knowledge | Why doesn't the coffee bed puff up during blooming? Does a single-origin bean that doesn't puff up mean poor quality? Does a bigger coffee bed puff mean the coffee is fresher?
Whenever Front Street brews a pour-over for a customer's order, if the coffee bed puffs up quite a bit during blooming, there's a good chance the customer will ask: "Why doesn't my coffee bed puff up this much when I brew?" This is a topic Front Street often discusses! Honestly, although the bloom [more…]
Espresso Crema | What Is Crema in Espresso? What Coffee Information Can the Crema on an Espresso Reveal?
As is well known, the coffee extracted from an espresso machine is not only very rich and intense, but also comes with a layer of golden crema. Because this layer of crema gives the coffee a rich aroma and a smooth, dense mouthfeel, and is also a product unique to espresso, people often call it the soul of espresso. But... [more…]
Espresso Black Coffee | Where Does the Aroma of Espresso Come From? What Is Espresso Made Of? How Do You Make Espresso?
For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee) Thick surface, golden crema, strong and full-bodied with a strong sweet aftertaste. As the carbon dioxide in the crema is released, the alluring volatile aromatic compounds follow along. Espresso es [more…]
Coffee Grounds Storage | What Factors Affect the Freshness of Roasted Coffee Beans? How Long Is the Shelf Life of Freshly Ground Coffee? Do Coffee Beans Still Need to Be Rested After Grinding?
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…]
Coffee Blooming | Is blooming a must for pour-over coffee? What is the purpose of blooming coffee grounds? Does blooming or not have a big impact on coffee flavor?
After yesterday's Front Street article "How to Achieve a Perfect Bloom" was published, a friend became curious about this question—"Can pour-over coffee be made without blooming?" Undoubtedly, of course it can! But this "can" requires certain conditions. First, we need to clarify one point, that is [more…]
Espresso Crema | Why does espresso have a layer of crema? Can the crema tell you if an espresso is good or bad?
You often hear people say, "To judge whether an espresso tastes good, just look at the crema. The best espresso has a crema that is fine, thick, and golden." But can you really judge whether an espresso tastes good by the state of its crema? To find out whether this method works, Front Street only needs to give everyone two questions. [more…]
Espresso Crema Extraction Techniques | Is Coffee Crema Actually Oil? How to Make Espresso Black Coffee with Crema Using an Espresso Machine or Moka Pot?
A while back, when Front Street Coffee was tinkering with a moka pot in the shop, a friend saw that the moka pot coffee Front Street brewed had a very thick layer of crema, so they asked Front Street for the secret to brewing such thick crema, because the moka pot coffee they brewed at home had very thin crema. The same situation often occurs with espresso machine users as well. [more…]
Coffee Blooming | How to achieve the "perfect bloom" when making pour-over coffee? How do you adjust the bloom time for pour-over coffee?
As the saying goes: "Bloom well, and brewing is trouble-free." For pour-over coffee, blooming is a very important preparatory step. So-called blooming is the step where, before we formally extract the flavor compounds from the coffee, we use a small amount of hot water to pre-wet the coffee grounds and wait for a certain period of time. [more…]
Espresso Making | Why do coffee shops need to dial in espresso every day when they open? How do changes in coffee bean condition affect the taste of espresso?
Honestly, Front Street Coffee believes that in a barista's daily work, there is nothing more painful than the morning ritual—dialing in espresso. If there's anything more painful than that, it must be dialing in espresso on a rainy day. Because if you're not careful, you'll end up full of espresso, drinking it until you're sick of it. Some friends find this very hard to understand; they think [more…]
Coffee Brewing | What information is hidden in the coffee bed when making pour-over coffee? How can you judge the condition of single-origin pour-over beans from the coffee bed?
Yesterday a friend chatted with Front Street about a rather interesting phenomenon: he noticed that most people, when brewing coffee, even during the waiting intervals when they're not pouring water, still choose to fix their eyes intently on the changes in the dripper, as if trying to glean some information from the coffee bed. And you know what, there really is some truth [more…]
How to Properly Taste Espresso | Where Does Italian Coffee Come From? What Is the Authentic Italian Espresso Standard Method and Principle?
For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). The earliest method of making Espresso was born in 1884, when an Italian named Angelo Moriondo designed a machine that obtained [more…]
Coffee blend bean plans | What is the difference between single-origin pour-over beans and espresso blend beans? How do you determine the types of espresso blend coffee beans and the blending ratio?
What are blended coffee beans? What is the blending ratio for Front Street Coffee's espresso beans? Which beans are best for blended coffee beans? Recently, a friend asked Front Street Coffee: "Are all coffee beans suitable for making espresso?" No~ not all [more…]
Coffee blend bean planning | What is the difference between single-origin beans for pour-over and espresso blend beans? How do you determine the types of espresso blend coffee beans and the blending ratio?
What are blended coffee beans? What is Front Street Coffee's espresso blend ratio? Which beans are best for blended coffee beans? Recently, a friend asked Front Street Coffee (FrontStreet Coffee): "Are all coffee beans suitable for making espresso?" No~ not all [more…]
Coffee crema | What is the composition of crema in espresso? What should you do if there is no crema or the crema is clumpy when extracting espresso?
What is espresso? Espresso is a very, very small cup of coffee, about two or three sips and it's gone. Its flavor is extremely intense, and many people find it hard to accept. The small cup size and intense flavor are the reasons espresso has a very small audience in China, but latte made with milk and Americano made with water [more…]
What Is Coffee Crema Made Of? | Why Does Espresso Have Crema? What Factors Affect the Richness of Espresso Crema?
Just a few days ago, a customer came to Front Street Coffee's store in Dongshankou, Guangzhou to drink espresso, and before leaving said, "I really love your espresso, the crema is the richest I've ever seen!" It happened that a friend also asked Front Street about that espresso. [more…]
Authentic Italian Espresso Recipe | What Is the Extraction Principle of Italian Espresso? How to Taste Espresso Flavor? Which Coffee Beans Are Suitable for Italian Coffee?
The earliest method of making espresso was born in 1884, when an Italian named Angelo Moriondo designed a patented model of an espresso machine. Initially, the working principle of the espresso machine was based on two separate boilers. [more…]
The Principles of Coffee Bean Resting | Why Do Coffee Beans Need to Degas and Rest? How to Determine How Long Coffee Beans Need to Rest and Awaken? What Is the Correct Way to Rest Coffee Beans?
Coffee enthusiasts who often pick freshly roasted coffee beans at FrontStreet Coffee know that the optimal flavor period for coffee beans is within one month, while for drip bag coffee it is half a month; does this mean that just-roasted coffee beans are at their freshest? This [more…]
Coffee Bean Resting | How Long Is the Shelf Life of Freshly Roasted Coffee Beans? How Many Days Should Single-Origin Beans Rest for Pour-Over? How Soon After Roasting Can You Drink Coffee Beans?
In the past, when buying food, we would always check the production date and then look at the expiration date, because it is common sense to avoid eating food that has passed its expiration date. But when it comes to coffee beans, the production date refers to the roast date, that is, the point when the green coffee beans are roasted. However, when we pay attention to this roast date, [more…]
Pour-over Coffee Brewing Techniques | How Important Is Blooming to Pour-over Coffee? How Much Water and How Long for Coffee Blooming? How to Judge the Blooming Process?
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…]
Espresso Caffeine Content | How Does Coffee Concentration Affect Coffee Performance? What Are the Taste Characteristics of a Standard Espresso?
For more specialty coffee knowledge, please follow our WeChat official account: Front Street Coffee (FrontStreet Coffee). The biggest characteristic of espresso is—it's strong! Most espresso has a concentration ranging from 7% to 12%, meaning its water content is 88%-93%. Drip [more…]