main cause Learn more about main cause
-
What Causes Uneven Flow Distribution When Extracting Espresso? What's the Difference Between Bottomless and Split-Flow Portafilters?
Before bottomless portafilters were invented, baristas primarily used portafilters with spouts when extracting espresso. These portafilters mainly come in two types: single-spout portafilters designed for single-shot baskets, and split-flow portafilters for double-shot baskets. The so-called split-flow portafilter refers to the type shown in the picture below, featuring
2025-06-07 espresso extraction uneven flow bottomless portafilter split-flow portafilter coffee brewing -
Robusta Coffee Bean Flavor Profile: Are Composition Characteristics the Main Cause of Poor Taste?
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). FrontStreet Coffee - Robusta Coffee Bean Introduction. Let me briefly introduce Robusta, commonly known as "Robo beans," medium-grain coffee beans (Arabica is small-grain). It has low requirements for growing environment, excellent pest and disease resistance, and strong physical constitution. Poor flavor, often...
2020-02-17 Robusta coffee beans flavor profile composition characteristics poor taste main cause professional coffee -
What Is a Coffee Bed? Does Bed Depth Reveal Coffee Quality? How to Achieve a Perfect Depression in Pour-Over Brewing
As any coffee enthusiast knows, upon completing pour-over brewing, the coffee bed reveals itself as the water level subsides. A deep, uniform depression in the spent grounds is often regarded as a badge of honor among brewers. Yet, experienced coffee lovers understand that the final appearance of the coffee bed and whether the brew actually
2024-07-23 coffee bed pour-over brewing coffee extraction deep depression coffee quality brewing techniques -
Why Does Your Coffee Taste Sour? What Makes Coffee Sour and What Causes It?
In the article "Why Most Coffee Today is Sour," FrontStreet Coffee explained why most coffee needs to be sour and the reasons for this acidity. Many friends then expressed: I understand why coffee needs to be sour, but another question arises - why does coffee actually taste sour? The answer is simple, because coffee itself naturally contains
2024-09-12 coffee acidity sour coffee FrontStreet Coffee coffee flavor -
Drinking Coffee and Dental Health
Many dental professionals, aiming to offer more services to their patients, claim that coffee causes tooth discoloration, leading to what's known as "coffee smile." Some dentists assert that the dark brown pigments in roasted coffee beans seep into teeth, causing them to darken, with the upper front teeth being particularly affected by constant coffee consumption throughout the day. Dental professionals recommend rinsing with plain water after drinking coffee for a short period
2014-05-13 coffee coffee powder coffee beans -
Solutions to Latte Milk Foam Decomposition Problems and Illustrated Guide to Perfect Latte Milk Frothing
Have you ever ordered a takeaway latte and found yourself opening the lid to examine the milk foam? At first, I would habitually open the lid to admire the latte art, but later, I began observing the fineness and stability of the milk foam itself. Sometimes, the foam in the cup isn't puffed up but sunken in; other times, the
2022-01-26 latte coffee milk foam coffee art barista techniques coffee tutorial -
How to Eliminate Bitter Astringency in Coffee | Is There Astringency-Free Coffee? Why Your Home-Brewed Coffee Tastes Astringent
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). Coffee oils and colloids create a smooth texture in the mouth, but coffee's polyphenol compounds produce a rough astringent sensation. While astringency is an important mouthfeel in wine, when coffee has astringency, it's like having an ugly devil's tail that wreaks havoc in your mouth, creating unpleasant
2019-10-03 how eliminate coffee bitter astringency astringent brewed home professional -
SCA Arabica Coffee Green Bean Grading Manual_ How to Grade Arabica Coffee Beans?
Professional coffee knowledge exchange For more coffee bean information Please follow Coffee Workshop (WeChat public account cafe_style) [SCAA Specialty Coffee Green Bean Standards] SCAA green bean defects are divided into two major categories: Class I and Class II defects. The requirements for specialty coffee grade are: No Class I defects; No more than 5 Class II defects
2018-09-16 SCA Arabica coffee green beans grading manual coffee beans how to distinguish grades -
What Causes Thin Espresso Crema? Why Does Crema Have Many Large Bubbles? Factors That Make Espresso Taste Bad?
Recently, FrontStreet Coffee discovered while browsing that many friends encounter this situation when extracting espresso: "The extracted espresso has thin crema with many obvious large bubbles! The entire coffee tastes bland, has a thin mouthfeel, and the presence of bubbles affects the beauty of latte art patterns!
2024-06-03 espresso crema thin espresso bubbles espresso extraction problems coffee quality -
Types of Coffee Defect Beans and Their Formation Causes - How to Select Defective Coffee Beans and Differences Between Good and Bad Beans
Have you ever wondered why coffee beans go bad? What are the defects in green coffee beans? Why do they develop such defects? Today, FrontStreet Coffee will take you through the various types of defective beans and the causes behind their formation! Coffee processing typically begins on the same day as harvesting to prevent unnecessary fermentation that could alter the chemical properties of the coffee beans. This
2021-07-17 coffee defects types formation causes how to select coffee beans quality differences -
Hurricane Strikes Central American Coffee Regions Multiple Countries Experience Varying Degrees of Coffee Production Reduction!
For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). On November 3, 2020, Category 4 Hurricane ETA (later downgraded to a tropical storm) made landfall in Central America. This hurricane caused varying degrees of damage to regions in Nicaragua, Guatemala, Honduras, El Salvador, and Panama. Costa Rica, Mexico, and Jamaica were also
2021-01-28 hurricane strike Central America producing regions multiple countries coffee beans production varying degrees reduction -
Reasons for Stomach Discomfort After Drinking Coffee - Avoiding Coffee Acidity and Relieving Gastric Discomfort
Coffee is one of the most popular beverages in the world. It not only helps you feel more alert but may also offer many other benefits, including improved mood, mental performance, and athletic performance, as well as reduced risk of heart disease and Alzheimer's. However, some people find that drinking coffee can affect their digestive system. After drinking coffee, their stomach may keep rumbling.
2021-07-19 coffee after drinking stomach discomfort reasons avoid how to relieve gastric -
Why Does Pour-Over Coffee Have a Bitter Taste? Coffee Bean Roast Level and Brewing Techniques Causing Coffee's Astringency
Professional coffee knowledge exchange For more coffee bean information Please follow Coffee Workshop (WeChat official account cafe_style) Introduction Teacher Huanai Han once said: "Coffee oils and colloids create a smooth mouthfeel in the mouth, while coffee's polyphenol compounds produce a rough astringency, like having a devil's tail, running wild in the mouth, creating discomfort." If in wine
2021-06-01 why pour-over coffee astringency coffee beans roasting level technique causes -
How to Use an Espresso Machine! Key Considerations for Espresso Extraction! What Should You Pay Attention to When Extracting Espresso?
From grinding beans to extraction completion, making a cup of espresso takes less than 60 seconds. It might seem that creating a delicious cup of coffee is not a complicated operation. However, as FrontStreet Coffee often says, although it may appear simple, there are actually quite a few details that require attention. As the saying goes: details determine
2024-12-23 espresso machine coffee extraction barista tips coffee brewing -
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 -
What Causes the Center to Collapse After Blooming in Pour-Over Coffee | A Brief Analysis of the Depression Pit Formation in Pour-Over Coffee
For professional coffee knowledge exchanges and more coffee bean information, please follow Coffee Workshop (official WeChat account: cafe_style). That's right, we all love pour-over coffee! Pour-over coffee possesses infinite charm, not just in its ritualistic process, but also in the delightful enjoyment that well-extracted pour-over coffee brings us, just like handcrafted coffee does.
2022-10-28 pour-over coffee blooming center collapse what causes analysis formation depression -
What Causes Coffee Ground Blockage in Pour-Over Brewing? Why Use the Three-Stage Method? What's the Purpose of Flow Restriction?
When you notice hot water taking unusually long to permeate through the coffee grounds during brewing, and a significant amount of water remains in the filter even after exceeding most of the estimated brewing time, there's no doubt - you're experiencing a blockage! Without proper flow restriction, your coffee will likely develop some unexpected flavors!
2024-09-01 pour-over coffee coffee brewing coffee extraction three-stage brewing flow restriction -
Indonesian Mandheling and Golden Mandheling Coffee
Coffee bathes you in luxury. Among the various luxuries on the dining table, coffee is indeed precious. It inspires joy without causing intoxication; it stimulates the mind, brings pleasure that flows, never accompanied by sorrow, weariness, or weakness. ----- Benjamin Franklin (1706-1790) (Translation: Huang Wei) Benjamin Franklin
2025-08-15 Coffee Knowledge Indonesian Coffee Mandheling Golden Mandheling -
What is Coffee Acidity? Why Does Coffee Taste Sour? Is it Caused by Coffee Acidity?
Professional coffee knowledge exchange For more coffee bean information Please follow Coffee Workshop (WeChat official account cafe_style) The source of coffee sour taste The difference between pleasant acidity and unpleasant sourness Coffee acid (English: Caffeic acid) is an organic compound belonging to hydroxycinnamic acid, featuring both phenolic hydroxyl and acrylic acid functional group structures. Because caffeic acid is biosynthesized from plant
2018-01-26 coffee what is sour what's wrong is it because of reason professional knowledge -
Why is Espresso Hard to Dial in on Rainy Days? What Are the Causes of Poor Espresso Extraction from Coffee Machines?
As temperatures gradually rise and frequent rainy weather arrives, this means Guangdong has already stepped into the realm of spring. Do you think FrontStreet Coffee is going to praise this season of revival? No! In these continuous spring rains, for those who have to work early shifts and dial in coffee early, it will be a time of drinking espresso until satisfaction
2025-02-07 espresso extraction rainy day coffee espresso machine brewing challenges weather effects on coffee