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What Causes Espresso Machine Explosions? Why Do Portafilters Blow Out During Extraction?
With the advent of affordable, compact home coffee machines, more and more people are equipping their homes with coffee machines to enjoy fresh, ground-to-order espresso anytime. However, what's increasing alongside the number of coffee machines is a series of operational issues. Recently, FrontStreet Coffee has noticed that online
2024-05-21 espresso machine safety portafilter explosion coffee extraction FrontStreet Coffee -
Why Did My Coffee Machine Explode? Essential Tips for Using Espresso Machines and Replacing Gaskets
With the growing demand for coffee, many friends have purchased coffee machines for their homes, allowing them to brew a cup of coffee anytime to satisfy their cravings~ But recently, many friends have reported to FrontStreet Coffee that they occasionally experience "explosions" during use, where the portafilter suddenly releases pressure during the extraction process
2025-06-03 coffee machine explosion espresso machine safety coffee gasket replacement coffee maintenance -
What to Do When Coffee Puck Sticks to Coffee Machine? What's the Purpose of Pressure Relief Function? Why Do Espresso Machines Explode?
Have you ever encountered this situation? After extracting espresso, we remove the portafilter and tap it on the knock box, but there's no sound of the coffee puck falling as expected. Looking back, we discover that the puck has adhered to the coffee machine's group head. In the coffee community, such an occurrence...
2024-12-07 espresso machine coffee puck pressure relief machine explosion maintenance -
What is Americano, the Unassuming Black Coffee? Do You Really Understand Americano Coffee?
For professional coffee knowledge and more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). Compared to lattes, Americano coffee (Americano, Long Black, Lungo) tends to be somewhat unappreciated. A cup of espresso...
2025-06-21 unassuming Americano coffee what is it truly understand -
Espresso Extraction Issues Collection! Why Can't Pressure Build Up? Why Won't Espresso Produce Crema?
FrontStreet Coffee's backend has accumulated another batch of espresso extraction questions. While there are many private messages, the problems are mostly similar. So, without further ado! Today FrontStreet Coffee will compile these issues into a comprehensive collection with simple solutions. Corresponding article links will be included throughout the text for everyone's reference.
2024-08-20 espresso extraction issues pressure problems crema coffee troubleshooting -
Yirgacheffe Coffee Flavor Profile and Characteristics - Explosive Bright Fruit Notes
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style)
2020-04-17 Yirgacheffe coffee flavor profile coffee beans characteristics explosive bright fruit professional -
The Difference Between Split Portafilter and Bottomless Portafilter for Espresso Extraction: Which is Better?
Previously purchased coffee machines almost always came with spouted portafilters. Typically, there would be two: one single-spout portafilter for single shot baskets, and another split portafilter with two spouts for double shot baskets, dividing the espresso into two cups. At that time, 1 shot referred to a single portion.
2022-12-07 espresso machine portafilter split portafilter bottomless portafilter coffee extraction espresso shot -
How to Choose an Espresso Machine Portafilter? Does a Bottomless Portafilter Affect Espresso Extraction?
When coffee enthusiasts purchase an espresso machine, they naturally need to select related accessories to achieve better extraction of delicious espresso! Among these, the most attention-grabbing aspect is the choice of portafilter, which has always been divided into two major camps: one group chooses portafilters with bottom spouts for separate flow
2024-01-07 espresso machine portafilter bottomless portafilter coffee extraction espresso accessories -
What's the Difference Between Bottomless and Spouted Portafilters for Espresso Machines? Which Portafilter Should You Use for Single and Double Baskets? Which Portafilter is Best for Espresso Extraction?
Recently, many well-known coffee bloggers have been discussing the topic of espresso machine portafilters, suggesting that bottomless portafilters are more suitable for espresso extraction than spouted ones. The so-called espresso machine portafilter is a tool used to support the portafilter basket during extraction. Whether it's the single basket that FrontStreet Coffee discussed yesterday, or what we now use
2024-07-26 espresso machine portafilter bottomless portafilter spouted portafilter coffee extraction single basket double basket -
Differences Between Bottomed and Bottomless Portafilters for Espresso Machines | Analysis of Bottomless Portafilters' Functions, Pros and Cons
For professional coffee knowledge and more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). Simply put, a bottomless portafilter removes the spout and base from the bottom of the filter basket, allowing you to clearly see espresso dripping drop by drop from the basket into the cup. Currently available...
2025-07-27 espresso machine portafilter bottomed bottomless differences analysis what is -
Colombia Washed Coffee Bean Flavor Profile - Geisha Variety with Explosive Fruity Aromatics
Professional coffee knowledge exchange and more coffee bean information. Please follow Coffee Workshop (WeChat official account: cafe_style). FrontStreet Coffee - Colombia Tomas Grass Estate Washed Geisha Introduction. Tolima is the third largest coffee-producing region in Colombia, accounting for 12% of the country's annual coffee production. Coffee cultivation in this area can be traced back to the early 20th century, when it was widely planted in low-altitude areas
2020-03-22 Colombia washed coffee beans flavor Geisha introduction aromatics explosive professional -
Does the Portafilter Temperature of an Espresso Machine Affect Espresso Extraction?
Generally, the portafilter used for espresso machine extraction is placed in any nearby storage area and only picked up when extraction is needed. At this point, the portafilter is at room temperature. However, until yesterday, FrontStreet Coffee was browsing online and discovered footage from a WBC competition a few years ago, where Mr. Wu Zelin was using a frozen portafilter.
2023-12-07 espresso machine portafilter temperature coffee extraction brewing techniques -
How to Make Espresso? Does Portafilter Temperature Affect Espresso Flavor?
For professional coffee knowledge and more coffee bean information, please follow Coffee Workshop (WeChat public account: cafe_style). For more specialty coffee beans, please add FrontStreet Coffee's private WeChat: qjcoffeex. Regarding the portafilter after extracting espresso, should it be placed on the drip tray at room temperature or attached to the group head?
2023-04-26 espresso making portafilter temperature coffee extraction espresso flavor FrontStreet Coffee -
How Much Difference is There Between Baskets? How Much Coffee Should a Basket Hold? Which is Better: 51mm or 58mm Baskets?
The "basket" is a bowl-shaped component installed on an espresso machine's portafilter. It gets its name from containing coffee grounds. Since manufacturers typically provide default baskets when purchasing an espresso machine, most coffee enthusiasts don't specifically research baskets (and indeed, there's usually no need to), but when it comes to understanding basket differences...
2024-12-26 coffee baskets portafilter baskets coffee dosage 51mm vs 58mm -
Should Espresso Portafilters Be Locked Back to Group Head or Left at Room Temperature? The Impact of Temperature on Coffee Flavor
Professional coffee knowledge exchange. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). Introduction: After extracting espresso, should the portafilter be locked to the group head to keep warm or left at room temperature? On this question, baristas have different views. Some baristas believe that keeping the portafilter locked to the group head maintains consistent temperature throughout the entire portafilter (including the filter basket).
2021-05-16 espresso coffee portafilter group head room temperature placement temperature flavor extraction -
How Does Handle Temperature Affect Espresso? How Is Coffee Aroma Influenced by Temperature?
At the 2016 WBC competition, competitor Tse-lin Wu from our Taiwan Province used a chilled handle to extract espresso and successfully won the championship. This operation subverted everyone's understanding at the scene, and everyone, like the commentator present, raised questions: "Can the handle temperature really affect...
2025-01-19 espresso coffee handle temperature coffee aroma barista championship cold brew handle -
Espresso Extraction Standards: Coffee Quality and Filter Basket Performance Comparison
For professional barista discussions, follow Coffee Workshop (WeChat Official Account: cafe_style) IMS vs VST: Espresso Filter Baskets and Their Role in Extraction. Espresso filter baskets: though small, they play a significant role. They have a crucial impact on extraction, yet despite this, they are often overlooked
2025-06-07 espresso coffee extraction standards quality VST IMS filter basket performance -
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 -
What's the Difference Between Single and Double Shot Baskets? What Does Adding a Shot Mean? What is a Shot? How Much is a Single Espresso Shot?
"Adding a shot" is an option coffee shops provide to customers for a stronger coffee. When we feel the coffee isn't strong enough or want more caffeine, we can add an extra shot to our ordered coffee. 1 shot in coffee refers to a single espresso shot, while "Shot"
2024-07-25 espresso shot coffee terminology single vs double shot espresso basket coffee concentration -
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