Clean Express Coffee Grease Remover | For cleaning portafilters

Cleaning the brew group of coffee grease using a blind sieve(also called backflushing) is important because the coffee grease becomes rancid over time and causes the brew group to stick together. You need a blind sieve, which exerts a high counterpressure on the entire brewing system due to the closed base and rinses the system backwards due to the overpressure thus built up.

• Removes coffee deposits and encrustations in portafilters and filters automatically, quickly and gently.
• Cleans the brew group of portafilter machines
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• Gastro dose900g

Here are the working steps:

• Clean the brew group including the brew shower and gasketing ring with a suitable cleaning brush
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• Pour a teaspoon of coffee fat solvent into the dummy strainer
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• Pour some hot water on the fat solvent in the blind sieve, it starts to foam, please wait a short time until the foaming is finished
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• now clamp the portafilter firmly into the brew group
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• Remove the cup tray of the residual water tray and press the reference switch or lever for about 5 seconds, then you will hear that the pump is working noticeably quieter. This is the sign of maximum pressure build-up.
• Now stop the process. You will hear a hissing and gurgling sound as foam comes out of the bottom of the overflow of the brew group.
• Repeat the process several times, the foam will change from initially white to brown, then back to white, and finally there will be no more foam.
• Wipe the brewing shower, remove the dummy sieve from the portafilter and clean the portafilter of coffee grease, as coffee grease is also deposited under the sieve in the portafilter. Done.