ShotPulled › Gear › Backflush (detergent)
Backflush the group with cleaner: ECM Puristika
Before you start
- Tools
- blind filter (supplied), portafilter, coffee filter basket to refit afterwards
- Supplies
- ECM group cleaning powder (about 3-5 g per clean)
Warnings
- Hot water can spray from the group during cleaning. Source: ECM Puristika user manual, multilingual (2407)
- Cleaning with cleaner too often can strip the grease from moving parts: the group squeaks and wears quickly. Source: ECM Puristika user manual, multilingual (2407)
The machine tells you when
This machine keeps count itself and tells you when this job is due, so follow the machine rather than a calendar.
- What you see
- 'CLn' on the PID display
- Shown as
- A message on the display
- What it counts
- Shots
- Depends on
- CLn reminder in the PID menu: 0-200 brews in steps of 10; 0 (the delivery setting) means no reminder. Only brews over 15 s count.
- How it clears
- counts down from 10 to 1 with each brew-lever operation after it appears, then the temperature returns and the counter restarts
- Can be switched off
- Yes
Steps
- Heat the machine up to its working temperature.
From the manual: “Heat up the machine until the optimum operating temperature has been reached.”
- Fit the blind filter in the portafilter.
From the manual: “Place the blind filter into the portafilter.”
- Put about 3-5 g of group cleaning powder in the blind filter.
From the manual: “Put approx. 3 – 5g of the group cleaning powder into the blind filter.”
- Lock the portafilter into the group.
From the manual: “Clamp the portafilter into the brew group.”
- Lift the brew lever; the blind filter fills with water.
From the manual: “Operate the group lever. The blind filter will be filled with water.”
- Move the lever to its middle position, about 45°, and let the cleaner work; do not lower it fully.
From the manual: “Let the detergent react, moving the group lever into the middle position, approx. 45°.”
- After about 20 seconds, lower the lever fully so the grease drains through the group.
From the manual: “Move the lever into the lower position after approx. 20 seconds.”
- Repeat the lift, hold and lower cycle up to 10 times, until the discharge runs clear. Repeat up to 10 times, until the discharge runs clear
From the manual: “Repeat steps 5-7 up to 10 times, until only clear water is discharged by the infusion cylinder.”
- Rinse the portafilter and blind filter under fresh water and lock the portafilter back in.
From the manual: “Rinse the portafilter and the blind filter with fresh water. Then replace it.”
- Run the lever for about one minute, then lower it.
From the manual: “Operate the group lever for approx. one minute.”
- Take the portafilter out, rinse it and run that flush once more.
From the manual: “Remove the portafilter and repeat point 10.”
- Put the 1- or 2-cup filter back in the portafilter.
From the manual: “Place the filter for 1 or 2 cups into the portafilter.”
- If a CLn reminder is programmed, it clears after 10 lever operations and the counter restarts. Only when: if the CLn reminder is programmed
From the manual: “will disappear on the display after having operated the brew group lever 10 times”
Sources
Researched on .
Published: the sentence is on the maker’s own page or in the maker’s own document.