Answer: is a sterilization process
Explanation:
Pausterization, whose name is due to the scientist who used it for the first time (Louis Pasteur), is a thermal process that is carried out in liquids (especially food) with the intention of reducing the presence of pathogens without altering the composition of the food nor destruying its nutritional and positive properties.
This is done by subjecting the liquid to ultra high temperatures for a short period of time and then cooling it quickly.