Question

Pasteurised milk is______________

• A. Sterile and will not turn sour
• B. Free from pathogenic bacteria
• C. Not free from bacteria
• D. Both A and B

Answer 1

Answer: (D)

• Pasteurization is a process of heating 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.
• Raw milk is milk from cows, sheep, or goats that has not been pasteurized to kill harmful bacteria.
• This raw, unpasteurized milk can carry dangerous bacteria such as Salmonella, E. coli, and Listeria, which are responsible for causing numerous foodborne illnesses.
• Pasteurization makes sure milk is safe to drink by killing any bacteria and also helps to prolong its shelf life.
• The process of pasteurization involves heating milk to 71.7°C for at least 15 seconds. Once the milk has been heated, it is then cooled very quickly to less than 3°C.