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Bottomless Portafilter Too Fast? Slow Your Flow!

Coffee Tips Jan 29, 2024 No Comments

A bottomless portafilter is a must-have tool for espresso enthusiasts who are passionate about the art of coffee brewing. It allows them to witness the extraction process firsthand and identify any potential issues with their espresso shots. However, if you find that your espresso is pouring too fast from a bottomless portafilter, it’s a clear sign that something is not right.

What a Fast Espresso Extraction Means

Bottomless Portafilter Too Fast? Slow Your Flow!

When espresso pours too fast from a bottomless portafilter, it is usually an indication of a fast extraction.

A fast extraction means that the water is passing through the coffee grounds too quickly, resulting in an under-extracted shot. This can have a significant impact on the taste of the espresso, as it may lack body, sweetness, and complexity. It will most likely taste sour.

Several factors can contribute to a fast espresso extraction:

  • The grind size: a coarser grind allows water to flow through the coffee more quickly.
  • Insufficient tamping pressure can also lead to channeling, where water finds the path of least resistance and flows unevenly through the coffee puck.
  • Additionally, incorrect dosage, either too little or too much coffee, can impact the extraction time.

How To Fix Fast Extraction From a Bottomless Portafilter

If you’re experiencing a fast extraction from your bottomless portafilter, there are several steps you can take to slow down the flow and achieve a balanced extraction:

1- First and foremost, you can adjust the grind size to a finer setting, which increases the resistance and slows down the extraction. A finer grind allows the water to interact with the coffee grounds for a longer time, resulting in a more complete extraction and a richer flavor profile.

Tip: Pre-ground espresso coffee does not work with a bottomless portafilter. It is ground specifically to work with a pressurized portafilter. You need to grind your coffee beans using a conical burr grinder.

2- Proper tamping technique is also important in preventing channeling and ensuring an even extraction. Use consistent and adequate pressure when tamping down the coffee grounds to create a uniform density in the portafilter basket. This promotes a more controlled flow of water through the coffee puck and enhances the extraction process.

3- Finally, don’t be afraid to experiment with the dosage. Adjusting the amount of coffee used can influence the extraction time and help achieve a more balanced shot. If your espresso is pouring too fast, you may want to increase the dosage slightly to slow down the flow and improve the extraction.

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