The process of heating liquids to kill pathogens in food safety is associated with which scientist?

• A. Louis Pasteur
• B. Alexander Fleming
• C. Gregor Mendel
• D. Carl Linnaeus

Answer: (A)

Heating liquids to kill pathogens is associated with Louis Pasteur, whose work gave rise to pasteurization—the process of heating liquids to a specific temperature for a set time to destroy harmful microbes while preserving quality. Pasteur showed that microorganisms cause spoilage and disease and demonstrated that controlled heating can reduce their presence in liquids like wine and milk. This approach became a foundational method in modern food safety and public health, now routinely used in dairy and beverage processing. The other scientists are known for different breakthroughs—antibiotics, genetics, and taxonomy—so their work isn’t about heat-treating foods.