In the ice cream samples (Fig. 2) the particle size distribution of the homogenised systems (CH and HPH) became bimodal and did not differ between the samples dispersed in dissociating medium (Fig. 2A) and in water (Fig. 2B). In fact, they were characterised by a main group at about 1000 nm and a second group ranging from 100 to 300 nm both in SDS and in water. Similarly to that previously discussed for the mix samples, these groups refer to fat globule aggregates and to casein micelles, respectively. The casein micelles would be desadsorbed from the fat globule membrane by the freezing process. The particle size distribution of the ice cream sample produced from the unhomogenised mix (UNH) was found to differ with the dispersing medium used. In fact, it showed a bimodal distribution similar to that of the homogenised ice creams when diluted in SDS, whereas it was characterised by a monomodal distribution when diluted in water. Moreover, a shift of the peak towards lower diameter values was observed in the sample diluted in water with respect to the sample dispersed in SDS.