Definition of substitution. 1  1a : the act, process, or result of substituting one thing for anotherb : replacement of one mathematical entity by another of equal value. 2  2 : one that is substituted for another.
Homogenized milk is any sort of milk that has been mechanically treated to ensure that it has a smooth, even consistency. The homogenization process typically involves high temperatures, agitation, and filtration, all aimed at breaking down milk's naturally occurring fat molecules.
Well, it seems there are plenty of people who are promoting ânon-homogenizedâ milk as a healthier option. You may see it on the shelves in health-food stores and some supermarkets. Letâs get one thing out of the way first: non-homogenized isnât necessarily raw milk (ârawâ simply means not pasteurized). Though all raw milk is non-homogenized, not all non-homogenized milk is raw.