Insert the blind basket into the portafilter.  

Add 3 grams of Cafiza into the portafilter using the Scoopz dosing tool (1 scoop = 1.5 g).

Insert the portafilter into the group head.

Activate the brew cycle for 10 seconds. Stop the cycle after 10 seconds. Repeat this step 5 times.

Remove the portafilter from the group head. Activate the brew cycle and rinse the portafilter in a stream of water from the group head.

Insert the portafilter, still with the blind basket, into the group head without adding any cleaning product. Repeat Steps 3-5.

Remove the blind basket and insert the standard portafilter basket.

Brew a cup of espresso and discard it to ensure no residue remains.