BIELMEIER BHG 401, Instruction Manual

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GB
25
the well-cleaned mash tun (BhG 040001)
without closing the drain tap .

Pour the trub gently back into the lauter-/fer-
menting tun
(BhG 040002)
.
 After 5-7 l, test the specific gravity of the first
wort (fill the measuring cylinder
(20)
with
wort, cool it to 20°C and use the hydrometer
(19)
to measure the specific gravity) . To do so,
hold the hydrometer at its thin end and im-
merse it gently, so that it does not touch the
bottom of the measuring cylinder . Read the
gravity where the surface of the liquid crosses
the scale
(fig. 12)
.
If the flow of liquid stops while there is still
some liquid above the grain bed, close the
drain tap
(9)
, stir up the grain with the large
spoon (16) and allow it to settle again for ap-
prox . 5 minutes . Then repeat the procedure
from the beginning (without the specific gra-
vity measurement) .

When the grain bed is exposed, you can wash
it (called sparging) with approx . 25–30% of the
original amount of brewing water, depending
on the specific gravity you are aiming for . This
allows you to extract more sugar from the
mash . Make sure to add the water evenly and
gently over the grain bed . Use the ladle
(15)
for this task .
The sparging water must be at a temperature
of 70–80°C, otherwise the wort can become
too viscous!
Once the wort has been collected, close the drain
tap of the lauter-/fermenting tun . Scoop out the
used grain with the ladle
(15)
. Clean the lauter-/
fermenting tun thoroughly . Remember to rinse
the drain tap well!
(fig. 9)
°C min.
40
20
30
40
50
60
70
80
90
100
110
120
0
50
60 70
80
90
100
(fig. 10)
°C min.
40
20
30
40
50 60
70
80
90
100
110
120
0
50
60 70
80
90
100
40 cm
(fig. 11)
(fig. 12)