After you’ve scrubbed the screen and group with a rag give them a good scrubbing with a brush and use the rag again to clean out the leftovers. The rag will help to loosen up any hardened coffee grounds and debris inside the group head and screen. To get all the unwanted build up out of your group we recommend a warm, wet rag and a Pallo brush. Once you’ve removed your screen you can scrub all the built up grime out of the inside of your group head and screen. To remove an E61 screen you’ll need a flathead screwdriver to pry out the screen and gasket, using the edge of the grouphead as counter torque to loosen it from where it is held. Gasket tension: E61s use the tension of the group gasket to lock the screen in place. Below we will explore the removal of the different kinds of screens, cleaning and reinstalling. The process of removing your dispersion screen and cleaning your machine is a simple one that we recommend once a week as a part of maintaining your machine and creating a quality cup of espresso. However a little scrubbing or a new dispersion screen can make a world of difference in the cup produced by your machine. Once you incorporate backflushing into a monthly maintenance routine, the 5 extra minutes it takes to show your machine some love will save both your tastebuds and your wallet but even a backflushing routine can’t clean out everything on the other side of your dispersion screen. Rinse with water and put filters back (only for detergent backflush).Soak filters and metal portion of portafilter (do not submerge plastic handle) for 30 minutes in 1 teaspoon (6 g) of Full Circle powder per 32 oz.Make and discard a shot of espresso (only for detergent backflush).Repeat step 2 to rinse and make sure no detergent residue is left. Lock your portafilter into group head again, this time with a clean blind filter without the cleaner. Activate brew cycle and rinse portafilter in stream of water from group head. Repeat 5-8 times, depending on how dirty your grouphead is. Activate brew cycle for 10 seconds and allow the machine to release pressure.Lock your portafilter into the group head. Insert blind filter and add up to 1/2 teaspoon (3 g) of Full Circle wash.Backflushing more frequently than this will make brew lever action feel less smooth. Replacing the group gasket and screen we recommend about once a year. Detergent backflushing we recommend about once every 6 weeks for E61 machines. We recommend a 10 second water backflush on any day the machine is used, but if you can just manage twice a week that will be fine as well. The place we want to start is with water and detergent backflushing. Note: The images below may not match your machine - but depict the same process.
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