Backflush the group with water only: ECM Classika PID

Before you start

Tools

blind filter (supplied), portafilter

Supplies

None listed

Warnings

• Hot water can spray from the group during cleaning. Source: ECM Classika PID user manual, multilingual (2412)

Steps

1. Heat the machine up to its working temperature.

   From the manual: “Heat up the machine until the optimum operating temperature is reached.”

2. Fit the blind filter in the portafilter and add no cleaner.

   From the manual: “It´s better if you clean the brew group from time to time without cleaner.”

3. Lock the portafilter into the group.

   From the manual: “Place the portafilter in the group head.”

4. Raise the brew lever for about 20 seconds so the blind filter fills.

   From the manual: “Operate the group lever for approx. 20 seconds.”

5. Hold the lever in its middle position, about 45°.

   From the manual: “moving the group lever into the middle position.”

6. After about 20 seconds, lower the lever fully so the water drains through the group.

   From the manual: “Move the lever into the lower position after approx. 20 seconds.”

7. Repeat several times, until only clear water comes out. Repeat until the discharge runs clear

   From the manual: “until only clear water is discharged by the infusion cylinder”

8. Swap the blind filter for your coffee basket.

   From the manual: “Exchange the blind filter for the coffee filter”

Sources

• ECM Classika PID user manual, multilingual (2412) Manual

Researched on 2026-09-23.

Published: the sentence is on the maker’s own page or in the maker’s own document.

Applies to

• ECM Classika PID