split-flow portafilter Learn more about split-flow portafilter
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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 -
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 -
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'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 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 -
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 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 -
How Much Coffee for 1 Shot of Espresso? Single Shot Basket Extraction Parameters
Single shot espresso is commonly referred to as '1 shot'! A 'shot' is actually a liquor measurement unit, where 1 shot equals 1 ounce, approximately 30ml. The standard coffee grounds amount for making 1 shot of espresso is 9-11g. However, this parameter is rarely used nowadays. This is because
2025-03-08 espresso single shot coffee grounds extraction parameters brewing guide -
Does Handle Temperature Affect Espresso Extraction? Should You Preheat the Coffee Machine Brew Head?
Recently, FrontStreet Coffee noticed this brewing question: "For espresso extraction, should the tamping pressure be greater when the brew head is cold compared to when it's hot?" FrontStreet Coffee speculates that this friend's underlying question might be whether the handle at different temperatures affects espresso extraction and whether tamping pressure should be adjusted accordingly.
2024-09-15 espresso extraction handle temperature brew head preheating coffee brewing espresso preparation -
Is Water Accumulation in Espresso Portafilter After Extraction Related to Portafilter and Distribution Plate? How to Adjust Extraction Parameters?
For espresso machine owners, have you encountered this situation: after brewing, when you remove the portafilter, you find the entire coffee puck is soaking wet with significant water accumulation on the surface, and the knocked-out puck becomes a shapeless mud-like lump. Under normal circumstances, the extracted espresso coffee puck should be relatively dry, and the knocked-out puck
2024-01-30 espresso portafilter extraction coffee brewing coffee puck water accumulation -
Why Does Espresso Spray Out? How to Make Standard Espresso at Home?
FrontStreet Coffee remembers using a bottomless portafilter when first trying an espresso machine. Imitating the instructor's techniques and pressing the extraction button, I saw the first drop of espresso slowly fall into the cup, happily thinking this shot was secured. But unexpectedly, the vertical liquid stream suddenly sprayed out a very light-colored, thin water stream, and the coffee's flow rate
2024-06-05 espresso spray espresso extraction home espresso espresso technique -
Pay Attention to These Details When Making Espresso! Why Do You Need to Prime an Espresso Machine? How to Clean Your Coffee Machine?
FrontStreet Coffee has shared many small details to pay attention to when making espresso, but previous sharing mainly focused on aspects that have a greater impact on espresso extraction, such as parameters and distribution. What FrontStreet Coffee wants to share today are some operational details that are very easily overlooked. Although compared to the former...
2024-05-05 espresso making espresso machine maintenance coffee machine cleaning coffee brewing tips FrontStreet Coffee