What is the primary purpose of pasteurization in dairy processing?

What is the primary purpose of pasteurization in dairy processing?

• A. To sterilize the product completely
• B. To remove all micro-organisms
• C. To inactivate pathogenic microorganisms and substantially reduce spoilage flora while preserving product quality
• D. To improve flavor by heating milk

Answer: (C)

Pasteurization uses moderate heat to reduce the microbial load in dairy, balancing safety with quality. The main aim is to inactivate pathogenic microorganisms and substantially cut down spoilage-causing bacteria while preserving the product’s flavor, texture, and nutrients. It’s not meant to sterilize the product or remove every microbe; some heat-tolerant organisms may survive, which is why proper refrigeration and handling are still important. This approach contrasts with sterilization, which seeks to kill all microbes but can negatively affect taste and nutrition. By targeting pathogens and most spoilage flora without over-processing, pasteurization protects public health and keeps dairy products appealing.

Pasteurization uses moderate heat to reduce the microbial load in dairy, balancing safety with quality. The main aim is to inactivate pathogenic microorganisms and substantially cut down spoilage-causing bacteria while preserving the product’s flavor, texture, and nutrients. It’s not meant to sterilize the product or remove every microbe; some heat-tolerant organisms may survive, which is why proper refrigeration and handling are still important. This approach contrasts with sterilization, which seeks to kill all microbes but can negatively affect taste and nutrition. By targeting pathogens and most spoilage flora without over-processing, pasteurization protects public health and keeps dairy products appealing.