The aim of this paper was to define the optimal
concentration of a high-melting milk fat fraction with a
suitable precrystallization temperature time regime in
order to obtain chocolate which would have satisfactory
sensory characteristics and an increased fat bloom stability.
The precrystallization was performed in a laboratory
crystallizer, that is in a modified Brabender pharinograph,
which measures the rheological characteristics
of the precrystallized fluid chocolate mass with a milk fat
fraction. The experiments were performed according to
the factorial plan 32 (two factors on three levels). Hardness
as well as solid fat content of chocolate was measured
by instrumental methods. The optimal sensory
quality of chocolate was achieved by adding 1–3% of the
milk fat fraction and under the 25 C precrystallization
temperature. These samples of chocolate showed the
highest fat bloom stability.