The Manufacture of Chocolate and other Cacao PreparationsZipperer, Paul
Science
The Manufacture of Chocolate and other Cacao Preparations
Zipperer, Paul
Cacao; Chocolate; Cocoa
Figs. 51 a and b give finally two of the best known types which have
a very extensive application, protected by patent imperial (Germany),
and built by J. M. Lehmann, Herm. Baumeister, J. S. Petzholdt in
Döhlen, G, near Dresden and others. With this patent dividing machine
of J. M. Lehmann, solid and semi-liquid chocolate material, as also
nut and almond chocolates are divided exactly, in any weight from 18
to 250 grammes, and then conducted in strips of equal size to the
mould previously mentioned. As far as cleanliness, purity, and easy
management are concerned, it fulfills all the demands which can be
expected of the most modern machine.
[Illustration: Fig. 51 b.]
IV. Moulding of the Chocolate.
[Illustration: Fig. 52.]
11. ~Transference to the Moulds.~
The pieces of chocolate, on emerging from the dividing processes, are
placed separately in iron moulds, that is to say, as far as this has
not already been done in the dividing machine. It is important that
these should have the same temperature as the chocolate mass, in order
to prevent the formation of spots on the surface of the cakes, and to
obtain a good and non-greyish fracture. The temperature for moulding
smaller objects can be fixed at between 27° and 32° C. and for the
larger may be considerably lower. In summer also, moulding may be
proceeded with at a lower temperature than in winter. According to a
note in the Gordian (1895, No. 4) the moulding may be carried out in
summer, when the atmospheric temperature is;
from 25-31° C, at 26-27·5° C
" 18·5-25° C, at 28·5-30° C
" 12·5-18·5° C, at 31-32·5° C
In cold weather, the cakes may be moulded at a temperature of from
32·5-35° C., according to their thickness. When not manufactured in
the automatic machine shown in fig. 48, the mass should be otherwise
controlled as regards temperature, which should be registered by a
thermometer introduced therein. The moulds are for the most part
filled with plastic and liquid chocolates, and their depths determined
and modified by the weight of material which they are destined to
receive.
Fig. 52 shows a machine which conducts the semi-fluid mass to the
moulds in the following manner. The moulds are automatically introduced
under the apparatus, and filled from the small stirrer above. They then
succeed to the shaking table and are finally transported to the cooling
room. On this machine moulds of from 75-350 mm long and 75-225 mm broad
can safely be employed.
* * * * *
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