Manual Quick mill QM67 Dual Boiler (page 15 of 24) (English)

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QM67 Dual Boiler Espresso Machine

Owner’s Manual Page 14

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. I 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, I 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.

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Quick mill QM67 Dual Boiler Manual

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