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122
THE
COMPLETE
PRACTICAL
DISTILLER.
sprinkled
with
1
or
2
hectolitres
of
cold
water,
which
ar^
drained
and
let
into
the
fermenting-back
with
the
otheir
extracts.
In
operating
thus,
the
husks
left
on
the
double
bottom
are
sufficiently
exhausted;
they
only
retain,
after
an
hour's
draining,
three-fourths
of
their
weight
in
liquid,
slightly
charged
with
fermentable
matter,
which
might
be
neglected
in
a
well-conducted
distillery,
where
the
feeding
of
cattle
is
an
object.
But,
at
all
events,
if
the
loss
of
liquid
was
thought
of
any
moment,
the
pulp
might
be
en-
tirely
exhausted
by
means
of
a
cylindrical
press.
Full
half
of the
weight
of
the
drained
pulp
might
be
obtained
in
liquid,
but
a
simple
draining
is
sufficient,
and
the
practice
of
pressing
the
residue
should
only
be
resorted
to
in
cases
where
a
smaller
quantity
of
water
has
been
used
for
mashing
than
has
just
been
recommended.
In
this
way
of
working,
the
fermentable
matter
being
neces-
sarily
left to
itself
for
a
certain
space
of
time,
and
often
requiring
to
be
taken
from
one
tub
to
the
other,
is
tolera-
bly
well
cooled,
and
gains,
toward
the
end
of
the opera-
tion,
a
suitable
temperature
for
fermentation.
There
are,
then,
three
ways
of
saccharifying
the
fecula
of
potatoes
by
means
of
malted
barley
or
Indian
corn.
It
requires
very
little
reflection
to
see
that
the
first
mode
is
evidently
inferior
to
the
other
two.
In
fact,
under
whatever
light
it
be
considered,
whether
as
a
mat-
ter
of
economy
in
labour
and
combustibles,
or
with
re-
spect
to
the
quality
or
quantity
of
the
spy'ituous
produce,
it
will
never
bear
comparison
to
the
other
two.
It
is
necessary
that
the
potatoes
should
be
boiled
by
steam,
and
this
is
indispensable.
This
steam
is
to
be
produced
on
purpose,
and
occasions
expenses
in
fuel.