Pasteurization is a way of killing bacteria in milk by heating it to a specified temperature, and holding it there for a specified time. Invented and demonstrated to effectively kill any bacteria in the milk, by French chemist Louis Pasteur
Pasteurisation does not kill all bacteria in the milk. Some bacteria are not killed in the heating process and will start to multiply again after pasteurisation. Cooling after pasteurisation is needed in order to limit the amount of bacterial growth that occurs. Bacteria reproduce very slowly in cold conditions, but very quickly in hot conditions. Cooling is the only preservative that is used after pasteurisation.
1864
PASTEURISATION
There is none
louis pastuer
Milk
louis pasteur
None, other than the cost
Yes
pasteurization
he discovered pasteurisation
Pasteurisation kills any microorganisms (e.g. bacteria, fungi) that might be in the milk that could cause it to go sour or spoil.