La Marzocco Linea PB, Manual, Page: 15 / 112

EN
15
IMPORTANT
To improve the flavor of the espresso, the
temperature of the water in the coffee boiler
and therefore of the groups may eventually
be raised or lowered via the digital display
(please consult the Software Programming
Manual for detailed instructions).
CAUTION
NEVER REMOVE THE FILTER HOLDER WHEN WATER IS
BEING DELIVERED. THIS OPERATION CAN BE EXTREMELY
DANGEROUS SINCE THEHIGH PRESSURE BUILT-UP
INSIDE THE BLIND FILTER WOULD SPRAY OUT HOT AND
SLIGHTLY CAUSTIC WATER, WHICH MAY CAUSE SEVERE
BURNS. THE COFFEE BOILER CONTAINS WATER AT
ELEVATED TEMPERATURE. WATER TEMPERATURE OVER
125°F / 52°C CAN CAUSE SEVERE BURNS INSTANTLY OR
DEATH FROM SCALDING.
Place some ground coffee in the filter
itself: 1 dose (approximately 6-7 g) for
the small filter, 2 doses (2 approximately
12-15 g) for the larger filter. Press down
on the ground coffee with the supplied
tamper and install the filter holder up
again to the bottom of the group and then
press a button (AV model) to begin the
brewing process, or move the paddle lever
(MP model).
Note: Some baristas believe it is important
to press the brewing button prior to
installing the portafilter to allow the water
to flush any remaining coffee oils and
particles from the group. Some also flush
just after brewing coffee for the same
reason. Please experiment to find the best
possible procedure for you.
7) Controlling the brew process using volumetric
programming (AV model only)
This espresso machine allows the
volumetric programming of each of the
first two buttons on each group (numbered
left to right). Please consult the
Software Programming Manual for further
instructions.
8) General notes for coffee preparation
The portafilters must remain heated since
they are at the lowest position of the
group itself, and they are partially isolated
due to the rubber gasket between them.
This can be accomplished by leaving the
portafilters installed in the machine when
not in use. The portafilters may also be
actively heated. This procedure may be
carried out by brewing some hot water
through the portafilter then turning off the
water flow, before making coffee.
It is important to remember that coffee left
over in the filters must be removed only
when you need to prepare another cup,
and only at that time should you place a
new dose of ground coffee in the filter.
The size of the coffee granules is extremely
important in preparing a good cup of
coffee, other than the type of coffee mix
used, quite obviously. The ideal grinding
can be determined by making various
coffees using the amount of ground coffee
that you would normally use for each cup
(we recommend at least 6-7g). The best
grinding is that which allows coffee to flow
out from the filter holder spouts neither
too slowly (drop by drop) nor too quickly
(quick light brown flow). A general rule
is that a double dose should dispense
approximately 25cc or 2 fluid oz. of
espresso in approximately 25 seconds.