The homogenization process involves reducing the size of the fat globules (the cream that rises to the top of the glass or bottle) into minuscule portions that are dispersed evenly throughout the milk. Homogenization usually is achieved by pumping milk through small openings under very high pressure. As a result, milk looks and tastes creamier.

Homogenized milk refers to milk that has gone through this process and therefore has fat globules evenly distributed throughout the liquid instead of cream that separates and floats at the top, as it does with non-homogenized milk.

Homogenization, process of reducing a substance, such as the fat globules in milk, to extremely small particles and distributing it uniformly throughout a fluid, such as milk. When milk is properly homogenized, the cream will not rise to the top.