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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 Pour-Over Coffee Taste Too Sour? What's Causing Both Sour and Bitter Flavors? Barista's Guide to Pour-Over Coffee Extraction
Why does pour-over coffee taste too sour? What's happening when your coffee is both sour and bitter? Today we'll explain why these issues occur. Generally speaking, sharp acidity and bitterness are undesirable characteristics in coffee. Sharp acidity typically indicates "under-extraction," while sharp bitterness suggests "over-extraction." But what about when coffee tastes both sour and bitter? This could be
2021-10-17 pour-over coffee sour coffee bitter coffee coffee extraction barista tutorial brewing guide -
Jamaica Blue Mountain No.1 Coffee Bean Recommendation - How is Conasdale Estate Blue Mountain No.1 Coffee Pour Over
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account cafe_style). Today, we're introducing Blue Mountain coffee from Jamaica's Conasdale Estate. As direct importers of Jamaica Blue Mountain coffee, we primarily work with Clifton Estate and Conasdale Estate. Since Clifton is the most famous
2018-11-14 Jamaica Blue Mountain No.1 coffee beans recommendation Conasdale Estate pour over -
How to Identify Under-Extracted Pour-Over Coffee? What Happens with Over-Extraction and Perfect Extraction
When it comes to coffee extraction, do you know how coffee flavors differ at various extraction stages? FrontStreet Coffee often mentions how different coffee flavors are extracted in sequence—first fruity acidity, followed by sweet nutty notes, and finally rich bitter chocolate flavors. When extraction goes too far, it becomes bitter.
2021-08-08 how identify pour-over coffee extraction under over perfect what -
Common Issues in Pour-Over Coffee | Water Flow, Water Stream Practice, Grind Size Selection, Iced Coffee Making
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). Hello everyone, when making coffee daily, we always encounter some small problems. Yesterday, we already summarized beginner's issues collection 1 | Resolving doubts, common problems in coffee. Today we continue:
2018-10-14 pour-over coffee common issues water flow water stream practice grind selection making -
Introduction to Costa Rican Coffee Varieties and Flavors
Costa Rican coffee flavors have always been well-balanced, lacking the sharpness of Guatemalan coffee, offering a quite smooth and gentle taste. Aroma, sweetness, and chocolate bitterness coexist harmoniously in perfect balance, representing the classic flavor of premium coffee. The seven major coffee producing regions are as follows: Turrialba Valley (northeast of the capital San José), Central Valley (
2025-06-22 Costa Rica coffee varieties flavors introduction always -
Key Points of Espresso Extraction, Extraction Time for Americano, and Taste Characteristics of Iced Americano
Key points of coffee extraction - Extraction time for Americano coffee. Therefore, the first requirement is to press the coffee grounds evenly and horizontally, applying uniform force to avoid tilting, ensuring equal pressure across all parts of the coffee surface. The second point concerns the gap between the group head and the coffee grounds inside the portafilter during extraction.
2025-07-30 coffee extraction key points americano extraction time -
How to Extract Delicious SOE Espresso: Characteristics and Brewing Methods for Light Roast SOE Coffee Beans
Previously, some friends asked FrontStreet Coffee to explain how to extract SOE (light to medium roast beans). If you simply copy and paste common extraction methods, you may not achieve a delicious result. However, regardless of the coffee bean type, the extraction approach remains the same: to extract the desirable flavors of this coffee while avoiding the negative
2023-02-19 SOE espresso light roast coffee extraction methods coffee brewing single origin espresso -
Jamaica Blue Mountain No. 1 Coffee, Clysdale Estate Introduction
Jamaica, a Caribbean island nation, produces world-famous Blue Mountain coffee. Here we introduce a small Blue Mountain coffee estate that produces high-quality Blue Mountain No. 1 coffee...【Original Name】JamaicaCLYSDEDALEEstateBlueMount
2025-08-13 Jamaica Blue Mountain Jamaica Blue Mountain coffee beans specialty coffee beans -
Jamaica Blue Mountain No.1 Coffee Beans Jamaica Blue Mountain No.1 Clifton Estate Features and Stories
Jamaica Blue Mountain one of the oldest farms Clifton Farm Jamaica Clifton Mount Estate Owner: The Sharp Family Certificate: Rainforest Alliance Certified Location: Newcastle Region Total Area: 250 hectares Coffee Planting Area: 18
2025-08-27 Jamaica Blue Mountain No.1 old farm Clifton estate -
Why is Pour-Over Coffee Too Sour and How to Adjust It? Is It Normal for Fresh Coffee Beans to Have Sour Taste?
Light roast coffee possesses fruit-like acidity, but today FrontStreet Coffee is not discussing this type of acidity, but rather the sharp sour taste caused by under-extraction during brewing. FrontStreet Coffee will list several recent cases reflected by friends as case study analysis. Case Study 1: Water Temperature Issue During one guest service, a customer ordered a cup of Yirgacheffe
2022-04-15 pour-over coffee sour coffee coffee acidity brewing adjustments extraction issues coffee brewing FrontStreet Coffee -
How to Properly Taste Pour-Over Coffee: Cupping, Slurping Technique, and Its Purpose
Some friends have asked FrontStreet Coffee, "How can one drink coffee professionally?" The answer lies in observing the techniques of professional coffee cuppers. If you have the opportunity to attend a cupping session, you'll notice continuous sharp "slurp~ slurp~" sounds throughout the first half hour. To the uninitiated, it might sound like a ramen noodle eating competition! In reality, this
2022-07-21 pour-over coffee coffee tasting cupping slurping technique professional coffee drinking -
The Beauty of Classic Balance - Flavor and Texture of Jamaican Blue Mountain Coffee Beans? How to Brew Blue Mountain Coffee
Above 1800 meters, the Blue Mountain range is cool and misty. Blue Mountain coffee has always been regarded as the ultimate coffee due to its rare production and bittersweet, mellow flavor. Its bittersweet and rich taste has historically been highly praised by consumers. The Jamaican government's official website for Blue Mountain coffee provides a very strict definition: Blue Mountain coffee must be
2025-08-13 Classic Balance Beauty Jamaica Blue Mountain Coffee Beans 1800 meters Above Blue -
How to Describe Coffee Flavors? The Sensory Characteristics of Premium Guji Coffee
For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat public account cafe_style). Acidity is a sharp, intense characteristic found in all coffees grown at high altitudes. Acidity in coffee is divided into good acidity and bad acidity. Good acidity brings people pleasure and
2025-09-06 coffee flavor how describe understand mouthfeel correct -
How to Judge Coffee Extraction Through Tasting: An Introduction to Hand-Pour Coffee Brewing Flavor Sensory Description
If you want to learn how to brew coffee, you must first learn how to taste coffee. Of course, "learning to taste coffee" here doesn't just mean being able to describe exquisite flavors, but rather being able to judge whether a cup of coffee is good or bad—that is, tasty or not. Whether coffee tastes good or not involves both subjective and objective factors, with personal preference being a significant influence.
2025-05-15 coffee tasting extraction hand-pour coffee sensory evaluation brewing techniques -
Introduction to the Types and Characteristics of Blue Mountain Coffee
The types of coffee in Jamaica's Blue Mountain region have three grades: Blue Mountain Coffee (BlueMountainCoffee), High Mountain Coffee (JamaicaHighMountainSupremeCoffeeBeans), and Jamaica Coffee (Ja
2025-08-24 Blue Mountain Coffee Types Characteristics Introduction Jamaica Region -
Where Does the Sweetness in Coffee Come From? How Coffee Flavor Changes from Light to Dark Roast
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account cafe_style). Green coffee beans contain a certain amount of monosaccharides. Although not all sugars have a sweet taste, these monosaccharides typically carry sweetness and react easily under the temperature catalysis of coffee roasting. Once most of the moisture inside the coffee beans evaporates, sugars will react with heat
2019-12-12 coffee sweetness flavor roast levels coffee knowledge coffee beans brewing -
Costa Rica - La Amistad Estate Coffee | Certified Organic by ARPE
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). Costa Rica - La Amistad Estate Coffee | Certified Organic by ARPE. Costa Rica produces coffee with the most stable quality among Central American countries, because Costa Rican coffee grows in suitable climates with excellent shade protection.
2018-11-08 Costa Rica La Amistad Estate Organic certification ARPE Coffee beans Specialty coffee -
How to Judge Milk Foam Consistency Through Sound
Creating a good latte coffee requires delicate, smooth, and highly fluid milk foam. What do you usually pay attention to when practicing latte art? Do you notice the sounds during the milk steaming process? The sounds that occur during milk steaming can actually help you judge the consistency very well
2023-10-30 latte art milk foam sound consistency coffee -
What are the signs of under-extraction and over-extraction in coffee? How to avoid over or under extraction in pour-over coffee
For more professional coffee knowledge and coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). A few days ago while chatting with friends, we discussed extraction
2025-06-08 extraction under over what difference pour-over when how perform adjustment