Machine Operation; Machine Start-Up; Grinding And Dosing; Preparing The Filter Holder - Wega MININIVA CLASSIC DUO Use And Maintenance Manual

6

Machine operation

6.1

Machine start-up

Turn the machine on using the main switch of
the machine (6).
Before using the machine, wait for a short time
(about 10 min.) until the gauge (4) indicates the
correct working pressure (1-1.2 bars)
The light (3) indicates the proper water level of
the boiler, slow flashes indicate the phase of water
loading.
Q
During the machine's warm-up phase (roughly
20 minutes), the negative pressure valve will
release steam for a few seconds until the valve
itself closes;
before using the machine, run deliveries dry
!
with the filter holder attached for a few seconds
to release any air which may be in the circuit, so
that the delivery groups are completely heated;
before using the machine, dispense a few
servings of coffee to test the grinding and to
check the operating pressure of the machine..
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6.2

Grinding and dosing

It is important to have a dosing-grinding device
next to the machine with which to grind the coffee
to use daily.
The grinding and the dosing of the coffee must
be done according to that indicated by the manufac-
turer of the dosing-grinding device. The following
points are also to be kept in mind:
to obtain a good espresso it is recommended not
to keep large stocks of coffee grains. Observe the
expiry date indicated by the producer.
never grind large volumes of coffee, it is advisable
would be to have the quantity contained in the
dosing device and use it if possible by the end
of the day.
if possible, never buy coffee that is already
ground as it expires quickly. if necessary, to buy
it in small vacuum-sealed packages.
6.3

Preparing the filter holder

Fill the filter with
a dose of ground
coffee (circa 6-7 gr.)
and press it with
the press;
hook the filter-
holder to the unit
without closing it
too tightly in order
to avoid excessive
wear of the gasket;
for the same reason it is recommended to clean
the edge of the filter before attaching the filter
holder to the dispensing unit;
follow the procedures specified by the manufac-
turer of the grinder.
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