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Place the portafilter back on the machine and repeat the process
WITHOUT any cleaning solution. When the backflush water
becomes clear, remove the blank filter and replace it with a regular
filter. If you have a two or three-group machine, repeat this process
with each group. Backflushing is an important maintenance step
and must be done a minimum of 3 times a week and even daily
with high volume machines.
2. Portafilter
The portafilter should be kept on the group head at all times to
keep it hot. After knocking grounds into the knockout box, there
will be some grounds left in the filter. Before inserting the portafilter
back into the group, push the Brew/Stop button to dispense hot
water from the group.
BE CAREFUL NOT TO PLACE YOUR HANDS OR FINGERS
UNDER THE GROUP HEAD. The hot water will rinse off any
remaining grounds. Push the Brew/Stop button to stop.
On a weekly basis, fill the sink with hot water, add cleaning
solution, and mix thoroughly. Remove the basket(s) from the
portafilter(s). Place both parts into water and let the part(s) sit
overnight if possible. Next morning, using the cleaning brush, scrub
and rinse the filter and replace back into the the portafilter. Ensure
that when you replace the baskets, the single filter basket is
inserted into the single portafilter, and the larger double filter basket
is inserted into the double portafilter.
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