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What Products are Generated by the Caramelization Reaction During Roasting? What Happens When Caramelization is Excessive or Insufficient?
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). FrontStreet Coffee briefly explains the caramelization reaction during roasting. The sugars in coffee beans undergo caramelization reaction at approximately 170-200°C, which coincides with the melting point of sucrose (185°C) and the temperature range during the first crack phase of coffee bean roasting. The products of the caramelization reaction include various compounds that contribute to the aroma, flavor, and color development in coffee beans. When caramelization is insufficient, the coffee may lack sweetness and complexity, while excessive caramelization can lead to bitter, burnt flavors that mask the coffee's inherent characteristics.
2019-12-17 roasting caramelization reaction products excessive insufficient professional -
How to Adjust Unstable Espresso Machine Extraction Pressure - Espresso Machine Coffee Making Tips
For more professional coffee knowledge and coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). An espresso machine is a device used to make espresso, as well as specialty coffees like lattes that combine espresso with milk. On the market, there are also semi-automatic espresso
2021-11-14 espresso machine pressure how much normal extraction insufficient pressure what causes -
What are the key points for making cold brew coffee? What's the difference between cold brew and iced drip coffee? Why does the extraction time need to be 8 hours?
Even though the arrival of the Beginning of Autumn has brought some coolness to the scorching Guangdong province, it's just a little relief! People are still being roasted by the scorching high temperature of 37°C! Because of this, refreshing and rich cold brew coffee remains the favorite of most people! But many friends who make it at home find that their own cold brew coffee never tastes as good as...
2024-08-09 cold brew coffee iced drip coffee extraction time brewing methods coffee preparation -
Where to Place Filter Paper in a Moka Pot? Is Sediment Normal in Moka Pot Coffee? What to Do If There's Insufficient Pressure? Is Filter Paper Necessary for Moka Pots?
Frankly speaking, FrontStreet Coffee believes that coffee filter paper can truly be considered an incredibly versatile tool. Because it's not just for pour-over coffee—it's also used for iced drip coffee, cold brew coffee, espresso coffee, and some friends even use it when making coffee with a Moka pot! However, this is where some friends might start to have questions
2025-09-21 Moka pot filter paper coffee sediment pressure issues brewing tips -
Nestlé Opens a "Sleep Café"! Struggling with Insomnia? Have a Cup of Coffee!
Are you sleeping well lately? Sleep deprivation and insomnia have become troubling problems for many modern people. To get better sleep, people are trying various sleep aids and sleep products... As this demand grows, the sleep economy has gradually emerged in recent years. From pillows and bedding to eye masks and earplugs
2022-06-07 sleep café Nestlé insomnia sleep aids sleep economy wellness products sleep quality -
Why Is My Espresso Puck Wet? Causes of Slow Extraction and Water Pooling in the Portafilter
Normally, after extracting coffee, the puck should be relatively dry and come out as a complete block. However, we often find that after coffee extraction, the portafilter accumulates a large amount of water, the puck is moist and loose, and the extracted puck cannot form a solid block. Although
2024-09-23 espresso coffee extraction wet puck slow extraction portafilter issues -
What are the signs of under-extracted coffee? What causes coffee to taste sharp and sour? Why is my pour-over coffee too acidic?
Preface: In the previous article, FrontStreet Coffee explained the flavor characteristics of over-extracted coffee. In this installment of Barista Training Guide, we continue to discuss the flavor profile of under-extracted coffee! What is under-extraction? According to SCA Golden Cup extraction theory, 18-22% of water-soluble substances in coffee contribute to good flavor. Therefore, when brewing coffee, we should maintain an extraction rate between 18-22%
2021-03-13 coffee extraction under what signs sharp sour causes pour-over too acidic -
Why Does My Moka Pot Produce Less Coffee and No Crema? Techniques for Brewing Rich Crema with a Moka Pot! How to Avoid the "Double Tail"?
Because the Moka pot uses the same pressure-based extraction method as espresso machines, it can produce strong coffee that closely resembles espresso. For this reason, as coffee culture continues to spread, more and more people are getting Moka pots. It's not just because the coffee it makes is strong enough, but also because it's compact and square
2024-08-25 Moka pot coffee extraction crema brewing techniques double tail -
What's the Right Grind Size for Espresso? What to Do When Your Espresso Machine Won't Build Pressure?
Quick question! What's the biggest difference between espresso extraction and other brewing methods like pour-over, boiling, or steeping? That's right—it's pressure! The former uses pressure-based extraction, while the latter relies on atmospheric pressure. Thanks to pressure, espresso can be extracted in an extremely short time! And that beautiful layer on top of your espresso...
2024-07-16 espresso grind size espresso machine pressure espresso extraction coffee troubleshooting -
How Many Cups Can Be Brewed Continuously with an Italian Moka Pot? Can Bialetti Moka Pot Use an Alcohol Lamp for Brewing?
One portion of coffee grounds in a Moka Pot can only brew one cup of coffee. If you want to brew continuously, you must use fresh coffee grounds each time. This is because the soluble substances in coffee are completely dissolved in water after one extraction process. Any subsequent brewing attempts will yield nothing but continued steeping of the woody fibers in the coffee beans.
2025-06-29 Moka Pot Bialetti Coffee Brewing Alcohol Lamp Italian Coffee Maker -
Flavor Exploration | Flavor Differences of Washed Yirgacheffe Woka Under Different Roasting Methods?
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). In our daily routine, we take time to adjust roasting curves to explore how to make the same bean taste better. We'll use Woka for this experiment. Woka is located in the Yirgacheffe producing region, at an altitude of 1800-2000 meters, using a garden coffee system, belonging to the Sidamo producing region. Due to its unique characteristics
2018-11-27 flavor exploration washed yirgacheffe woka different roasting methods differences -
Luckin Coffee Plans to Launch New Guiche Plus SOE Series! What is Guiche Queen Coffee Bean?
Recently, Luckin Coffee's launch of the Guiche 5.0 SOE coffee beans has been widely discussed. Firstly, Luckin Coffee's low-priced introduction of Guiche SOE has made many competitors envious, while others believe Luckin Coffee is degrading specialty coffee beans. Secondly, before launching the Guiche SOE, Luckin had insufficient inventory.
2022-02-17 Luckin Coffee Guiche Plus SOE Guiche Queen Coffee Bean specialty coffee single origin espresso -
Why Can't You Brew a Deep Crater in Your Pour-Over? Does a Deeper Coffee Bed Mean Better Coffee?
FrontStreet Coffee often explains that the shape of a coffee bed crater doesn't determine whether a cup of coffee tastes good. What its appearance actually reveals is more about whether your water pouring technique during extraction was appropriate. A uniform, symmetrical coffee bed serves as proof that we've controlled the water flow perfectly during extraction. However, for many coffee enthusiasts, achieving that perfect, even extraction remains an elusive goal.
2024-05-04 pour-over coffee brewing coffee bed crater extraction techniques FrontStreet Coffee -
What is a Non-Bypass Dripper? What Does Bypass Mean in Pour-Over Coffee? What is Bypass Water in Coffee?
Brewing coffee that tastes weak and watery is an all-too-common occurrence, as there are simply so many factors that can influence your brew! For example, FrontStreet Coffee often shares that too low coffee-to-water ratio can result in insufficient coffee concentration, making it taste watery; or factors like insufficient water temperature or coffee grounds that aren't fine enough can reduce extraction efficiency
2024-09-20 bypass dripper pour-over coffee bypass water coffee extraction coffee brewing -
Why Does Pour-Over Coffee Taste Weak? How to Brew Flavorful Coffee That Isn't Watery?
For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat Official Account: cafe_style) 'Temperature' 1. Extraction rate: Temperature has a significant impact on coffee extraction rate. Bitter, astringent, and burnt flavors are later-stage flavors. If the brewed coffee tastes bitter, burnt, or astringent, you can reduce the extraction water temperature to adjust. The
2025-06-21 pour-over coffee taste what reason how brew flavorful not too -
Why Bubbles Appear in Pour-Over Coffee: Is the Blooming Step Important?
Professional coffee knowledge exchange For more coffee bean information please follow Coffee Workshop (WeChat public account: cafe_style) Introduction Watching hot water slowly pour into the coffee powder layer as it gradually forms a hamburger-shaped dome, the blooming process is always so therapeutic to witness. What role does this hamburger-shaped bloom play in the brewing process? Does the amount of water during blooming affect the coffee extraction?
2021-05-21 pour-over coffee blooming step important water amount extraction impact professional -
What Causes Water Accumulation in the Portafilter Basket After Espresso Extraction and How to Solve It
A friend with an espresso machine asked FrontStreet Coffee, "I've been encountering an issue when extracting espresso recently. After extraction, when I remove the portafilter, I notice water accumulation in the basket, and the extracted coffee puck isn't intact—it's quite wet?" He then mentioned, "At first, I thought the coffee grounds were too fine, so I adjusted the grinder to a coarser setting, but still..."
2022-09-19 espresso machine portafilter water accumulation extraction problems coffee puck grind size -
Drip Bag Coffee Brewing Principles and Details
For professional barista exchanges, please follow Coffee Workshop (WeChat public account: cafe_style). To brew perfect drip bags, please read the following instructions carefully: Coffee extraction principles are as follows: Higher water temperature: coffee becomes stronger and more bitter, too high will cause burnt and astringent tastes Lower water temperature: coffee becomes lighter and more acidic Smaller water flow: coffee becomes stronger, too small will cause
2025-06-15 drip bag coffee brewing principles details professional exchange follow workshop -
Hougu Coffee vs Nestlé: Which Tastes Better? Is Yunnan Hougu Coffee Made from Yunnan Small Beans?
For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). Coffee companies generally have multiple product lines. Established coffee companies' products will include: 1. Raw coffee beans; 2. Roasted coffee beans; 3. Ground coffee powder after roasting; 4. Paired
2021-11-17 how to evaluate coffee Yunnan delicious small bean professional knowledge exchange -
Flavor Profile of Yemen Mokha Mattari Coffee Beans - How Should Yemen Mokha Be Brewed?
Professional coffee knowledge exchange For more coffee bean information Please follow Coffee Workshop (WeChat official account: cafe_style) Yemen was the first country to use coffee as a cash crop. According to legend, it was introduced in the 6th century by Islamic Sufi pilgrims from Ethiopia. The correct spelling should be Al-Mahka, which is the Arabic spelling. It grows on steep terrain with little rainfall, poor soil, and insufficient sunlight
2018-08-28 Yemen Mokha Mattari coffee beans flavor profile brewing guide how to brew