- Insert blind filter and add up to 1/2 teaspoon (3 g) of Full Circle wash. Lock your portafilter into the group head.
- Activate brew cycle for 10 seconds and allow the machine to release pressure. Repeat 5-8 times, depending on how dirty your grouphead is.
- Remove portafilter. Activate brew cycle and rinse portafilter in stream of water from group head. Stop cycle.
- Insert blind filter. Lock your portafilter into group head again, this time with a clean blind filter without the cleaner. Repeat step 2 to rinse and make sure no detergent residue is left.
- Make and discard a shot of espresso (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. (1 L) of hot water.
- Rinse with water and put filters back (only for detergent backflush).
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. However a little scrubbing or a new dispersion screen can make a world of difference in the cup produced by your machine. 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. Below we will explore the removal of the different kinds of screens, cleaning and reinstalling.
REPLACING THE GASKET AND SCREEN
Below are photo instructions for removing the Pro 300 group screen and gasket and cleaning the assembly. Before doing this we recommend turning off your machine and letting it cool off. Tools required for this:
Now that you’ve cleaned your group head rejoice at the clear, concise flavor you’ve helped your machine to produce! Cheers!