https://www.youtube.com/watch?v=K9R8_64G90o

Steilisation and Pasteurisation are two different processes.

Sterilisation is an absolute term while Pasteurisation is not.

Sterilisation is the killing of all microbes in a material or substance. the word all is key. no single microorganism is left behind in the sterilisation process.

Pasteurisation on the other hand is the application of heat to a food substance usually at a temperature below its boiling point for some minutes. Most canned food are pasteurised before canning.

The pasteurisation process was developed by Louis Pasteur.

Louis Pasteur was a French chemist but have done copious microbiology and biology researches.