Louis Pasteur

Louis Pasteur

Decay is caused by germs in the air Found that bacteria turned beer sour 1861 published germ theory Helped to produce safer surgery Produced vaccines in 1879, produced a weak strain of chicken cholera Giving animals the strain prevented disease

Pasteur was a French chemist and biologist who proved the germ theory of disease and invented the process of pasteurisation. 

Pasteurization or pasteurisation is a process of heating a food, which is usually a liquid, to a specific temperature for a predefined length of time and then immediately cooling it after it is removed from the heat. This process slows spoilage caused by microbial growth in the food. 

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