Separature

The heating of the milk makes it less viscous, hence skimming at a high temperature will give closer separature than when skimmed at a low [...] If a machine is receiving more than the proper quantity, the separation is not complete.

[...] (fracture strength of interface between inclusion and matrix), interfacial separature takes place to form voids. According to the law on the release of elastic energy equal to the increase in surface energy during fracture[…]