The Ultimate Guide to Cleaning Your Espresso Machine with a Blind Filter > 자유게시판

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Using a blind filter for espresso is a simple yet effective technique to maintain the cleanliness and performance of your espresso machine

Unlike standard baskets, it contains no drainage holes, forcing water to circulate under pressure

Without coffee to absorb or divert water, the system becomes fully pressurized, enhancing cleaning efficiency

Regular use eliminates stubborn coffee residue that degrades extraction and shortens equipment life

To begin, remove the regular coffee basket from your portafilter and insert the blind filter securely

Make sure it is clean and free of any debris

Then, lock the portafilter into the group head as you would when pulling a shot

Some machines may require slightly longer, up to 20 seconds, depending on model and pressure settings

The gauge will climb as water has nowhere to go, signaling effective pressure accumulation

The surge of pressurized water scrubs away hardened residue from hard-to-reach areas

After running the blind filter, turn off the machine and remove the portafilter

You will likely see a thick, dark residue on the blind filter itself

This is the buildup that has been cleaned out of your machine

Never store it damp—moisture encourages bacterial growth and rust

It is also a good idea to wipe down the group head with a clean, damp cloth to remove any remaining residue

It is recommended to use the blind filter at least once a week if you use your machine daily, or پارتاک استور more frequently if you notice a drop in shot quality, slower flow rates, or oily residue on your cups

Even water flow is critical for balanced extraction—this method preserves that uniformity

In addition to cleaning, the blind filter can also be used to test your machine’s pump pressure

A weak hum, delayed pressure rise, or erratic noise signals internal issues

Consult a qualified technician to inspect the pump, valves, or plumbing

For machines equipped with a three-way valve, detergent-based backflushing remains essential

Chemical cleaners break down what water pressure alone cannot

However, the blind filter serves as a crucial first step in mechanical cleaning, especially for machines without that feature

It’s the quiet hero behind every great espresso

It is a small task with a big impact on your daily espresso experience