AMSA Food Safety & Science Certification Practice Test

The process of heating milk to 161°F for 15 seconds is known as pasteurization. This method was developed by Louis Pasteur and is designed to eliminate harmful bacteria and pathogens that can be present in milk. By subjecting the milk to high temperatures for a specified duration, pasteurization effectively reduces the microbial load while maintaining the nutritional and sensory qualities of the milk. This process is critical in ensuring the safety of dairy products for consumption.

Fermentation, on the other hand, is a biological process involving the conversion of sugars into acids, gases, or alcohol by microorganisms, and it is not related to heat treatment. Sterilization refers to the process of completely eliminating all forms of microbial life, which typically requires higher temperatures or specialized methods beyond pasteurization. Homogenization is a mechanical process that breaks down fat molecules in milk to prevent separation, but it does not involve heat treatment for the purpose of killing bacteria.