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Why Does the Coffee Puck Stick to the Group Head? Does a Puck Stuck to the Shower Screen Affect Espresso?
A few days ago, FrontStreet Coffee shared "Reasons for Water Pooling in the Portafilter," and some friends asked, "What causes the coffee puck to stick to the group head after extraction?" Therefore, FrontStreet Coffee is here to discuss why this situation occurs. - Too much coffee dose This is the easiest problem to identify, and it's also the issue with the smallest impact.
2022-09-24 espresso troubleshooting coffee puck sticking group head issues espresso extraction -
Is Pressing Necessary for Espresso? The Correct Method for Making Espresso!
Just as coffee enthusiasts pursue a deep and uniform coffee bed when brewing pour-over coffee, most "perfectionist" coffee aficionados also strive to produce a complete coffee puck when extracting espresso. Similar to the coffee bed, the appearance of a complete puck doesn't necessarily indicate whether the coffee tastes good, but the puck that comes out
2025-03-10 espresso coffee brewing pressing extraction coffee puck barista techniques -
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 -
How to Reduce Channeling in Espresso Extraction? What's the Difference Between Tamping and Distribution?
Making espresso is a therapeutic process—whether it's the evenly leveled coffee bed after distribution or the golden crema slowly flowing during extraction, both can bring us a sense of contentment. And at FrontStreet Coffee, we believe the most satisfying moment is when we tap out a complete puck from the portafilter after extraction is complete—with just a gentle "pop" sound.
2024-04-16 espresso extraction channeling tamping coffee distribution espresso techniques -
The Role of Secondary Distribution Screens: Are Bomber's Screens Effective? Solving Wet, Poorly Formed Coffee Pucks During Extraction
In the world of coffee, innovative tools constantly emerge that enhance our ability to craft exceptional beverages. These 'physical enhancements' assist baristas in achieving higher quality results across various brewing methods. For instance, pour-over enthusiasts utilize tools like Lily pearls and shower drippers, while espresso aficionados employ distribution needles and bottomless portafilters to perfect their craft. Today, we'll explore the purpose of secondary distribution screens, evaluate Bomber's offerings, and address solutions for the common problem of wet, poorly formed coffee pucks during extraction.
2024-09-30 secondary distribution screen Bomber coffee extraction wet coffee puck espresso tools coffee brewing accessories -
How to Tamp Espresso Coffee Puck? How Much Pressure Should You Apply When Tamping?
Sometimes, observing a barista's tamping technique can be incredibly satisfying! Because every barista has a different understanding of tamping, they each develop their own unique tamping motions. Creating a level coffee bed is something everyone can agree on, because once the coffee is compressed unevenly—with one side higher than the other—
2023-11-11 espresso tamping coffee puck barista techniques espresso extraction coffee pressure -
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 Clumped Espresso Crema? Why Doesn't Espresso Coffee Puck Form Properly?
Hello everyone, today FrontStreet Coffee is sharing a comprehensive collection of common issues that arise during espresso extraction—Version 2.0. It has been over half a year since we shared our post "Common Problems in Espresso Extraction「1.0」," and as for why it took so long to share the second
2025-06-22 espresso crema coffee puck extraction brewing issues coffee troubleshooting -
Why is the espresso puck wet after extraction? Is the condition of the espresso puck important?
A wet coffee puck could be due to coffee ground too fine, under-extraction, or insufficient machine pressure. Although household semi-automatic coffee machines claim to have 15 atmospheres of pressure, they generally fall short. Additionally, without steam reflux, the coffee puck tends to be wetter.
2019-06-26 why espresso extraction puck condition important coffee wet -
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 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 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 -
What is Espresso Extraction Channeling? What are the Consequences of Perforated Espresso Pucks?
Professional coffee knowledge sharing. For more coffee bean information, please follow Coffee Workshop (WeChat official account: cafe_style). Why does espresso taste sour and bitter? Let's discuss espresso extraction standards and uneven extraction. Uneven extraction typically combines over-extraction and under-extraction issues.
2025-07-30 espresso coffee extraction channeling consequences professional puck perforation -
Distribution Tool vs. Tamper: Differences, Correct Usage Methods and Techniques - How to Fix Uneven Tamping
The differences between distribution tools and tampers, and the correct usage methods for coffee equipment. Water will flow through these small pits, and undoubtedly this area becomes a route for water to flow away quickly, causing uneven extraction in this region, making it impossible to achieve the desired coffee aroma. Now let's discuss what happens when tamping too tightly, which affects Espresso extraction.
2021-11-15 distribution tool tamper differences correct usage method introduction coffee beans equipment distribution -
Is there a hole in your espresso puck? Is it channeling? What exactly is espresso channeling?
"Channeling" is a term that frequently appears in FrontStreet Coffee's articles! We believe that when you're extracting espresso, you'll encounter channeling from time to time. For example, when some small holes appear on the surface of the coffee puck after extraction; or when using a bottomless portafilter, you experience splashing or uneven water streams
2023-12-18 espresso channeling extraction coffee puck barista techniques FrontStreet Coffee -
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 -
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 -
What Are the Requirements for Distributing Espresso Coffee Grounds? What Should Be Noted When Tamping Coffee Pucks? What is the Channeling Effect in Espresso Extraction?
Because pressurized extraction is quite special, to make a delicious espresso, in addition to finding the right extraction parameters such as grind size, time, ratio, and water temperature, we also need to perform some additional preparation steps. These additional preparation steps are simply what we do to the coffee before attaching the portafilter to the coffee machine
2024-07-11 espresso coffee grounds distribution coffee tamping channeling effect espresso extraction -
What's the Purpose of Using Filter Paper in Espresso? Why Add Filter Paper to Espresso?
Some friends have noticed recently that many coffee shops' extracted coffee pucks contain white paper. When he visited FrontStreet Coffee's store, he eagerly asked FrontStreet Coffee about the true identity of this paper. It looks like this↓, everyone can try to guess its real identity! That's right! It's filter paper, a circular piece of filter paper. Everyone
2025-04-04 espresso filter paper espresso brewing coffee shop coffee preparation -
Key Considerations in Espresso Making Process? How to Make Delicious SOE Espresso?
Professional coffee knowledge exchange For more coffee bean information Please follow Coffee Workshop (WeChat official account cafe_style) Key considerations in espresso making process? How to make it delicious? When we watch them make espresso in coffee shops, they directly drop ground coffee powder into the filter, use their hands to level the coffee powder even with the cup rim, then apply pressure with a tamper to compress it into a coffee puck. The pressure application
2018-06-23 espresso coffee making process considerations how to make delicious SOE single origin espresso