Pasteurization is one of the most important safety measures in milk processing. It is a method of heat treatment invented By Louis Pasteur. It destroys undesirable bacteria without reducing the quality of the milk. Pasteurization ensures safety, quality and a longer shelf life for many beverages.
The first pasteurization test was completed by Louis Pasteur and Claude Bernard on April 20, 1862.
Pasteurization is not Sterilization. It reduces pathogens to safe levels, but there will still be viable bacteria in the milk.
It is the method of heating something e.g. milk to kill bacteria so that it lasts longer. The method was invented by a French scientist called Louis Pasteur, hence the name pasteurisation.