This study investigated the effect of high pressure homogenisation (HPH) on the physical and structural
properties of ice cream. Samples were produced from mixes differing in fat content (5% and 8%) and
subjected to different homogenisation pressures (15/3 MPa and 97/3 MPa). Ice creams were compared for
fat globule size distribution, overrun, melting behaviour, and hardness. No influence of HPH on fat
structure destabilisation with respect to the conventional homogenisation (CH) was observed. The HPH
ice cream samples with high fat content were characterised by the lowest overrun, the highest hardness
and improved resistance to melting; the HPH ice creams with low fat content showed higher resistance
to meltdown, but were not clearly differentiated for hardness with respect to the CH samples.