Maintenance; Pid Parameters; Backflushing; Plain Water Backflushing - Quick MILL Carola Owner's Manual

Maintenance

Backflushing is a vital maintenance procedure you must follow to help keep your machine running
flawlessly for years to come. There are two types of backflushing; one with plain water, and the other with
espresso machine cleaner.
Plain water backflushing should be done at least once a week, however if you are so inclined, feel free
to backflush with plain water as often as you like. It won't harm the machine and keeps the shower screen
clean. To backflush, you use the portafilter's backflush disc. To remove your single or double portafilter
basket, use the blank portafilter insert. Turn it upside down and use its edge to pry the basket out of one of
your portafilters. (If you always make double espressos, you may choose to keep the blank portafilter
insert in your other portafilter so you always have one ready.) Next, place the blank insert into the
portafilter and slap it hard with the palm of your hand to secure it into the portafilter.
To perform a plain water backflush, place the portafilter into the group head. Then raise the brew lever all
the way up for 15 seconds, and then lower it. Water will forcefully discharge out of the bottom of the group
into the drip tray; this is normal. Repeat three to five times.
Backflushing with espresso machine cleaner is the same procedure as above with a few minor
differences. The first difference is backflushing with espresso machine cleaner only needs to be done
approximately once a month or every 35-50 espressos. We don't recommend backflushing with cleaner
more often than once every three weeks since overuse will remove oils that lubricate the brew lever and
valves.
To begin, place 1/4 of a teaspoon of espresso machine cleaner into the backflush disc in the portafilter
and then lock the portafilter into the grouphead. Now follow the same procedure as above until the cleaner
is dissolved and the water runs clear (about 5-10 flushes). Remove the portafilter from the group and rinse
thoroughly. Then take a damp cloth and wipe the underside of the group. After you have finished this
procedure, we recommend you pull a shot of espresso and dispose of it to cure the group. You're finished
and ready for another month of espresso.