M&V S.r.l. Vesuvius Owner's Manual - Esuvius Owners Manual
M&V S.r.l.
Via L. Guerra, 9
80040 Cercola (NA)
Ph./Fax +39 0815552428
e-mail:
info@mevsrl.net
© M&V S.r.l.
vesuvius userguide7 Aug 25 2014.doc
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Programming or examining pressure
profiles (cont.)
Not all phases have to be used, a 0 time and that
phase will not be used. The screens that follow show
the rest of this example profile
. Phase 7 is unused
shown by a value of 0 seconds
. It is not
necessary to put 0.0 bar as well.
One useful tip, if just a small change is desired,
after touching the "Tick" Icon to save the value,
raising and lowering the brew lever returns you to
the Main menu screen.
Profile advice
The Vesuvius has advanced pressure profiling
capabilities, but to program profiles is very easy.
Everyone's taste is different, so some suggestions to
get you started below, assuming a pump
acceleration value of 400 (factory setting).
Always remember, although you have 7 phases for
each profile, you don't have to use them all.
Phase 1 Preinfusion times for the first low
pressure phase
You can choose to move straight to maximum
pressure, but the Vesuvius benefits from a
preinfusion phase. Importantly the preinfusion
chamber within the E61 group has been disabled, as
it's operation interfered with pressure profiling.
Definite benefit is gained from preinfusion, times
shorter than 3 seconds will be relatively ineffective
as this will mainly be lost in filling the inactive
preinfusion chamber in the E61 group. The filling of
the redundant E61 preinfusion chamber also makes
a pre-flush unnecessary prior to pulling a shot.
We recommend preinfusion times 6 seconds or
longer and times of up to 14s have given good
results. With better grinders, even longer times may
be of benefit. Preinfusion pressures can be anything
you want, but not lower than 2 bar, testing has
mainly been with 2 bar preinfusion pressures. Early
testing did not show any benefits with pressure
lower than 2 bar due to low flow rates from the
pump.
One of the reasons the Vesuvius always supplies
the pump from it's internal tank, is to allow
preinfusion pressures lower than mains line
pressure (usually much higher than 2 bar).