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Food Science and Technology QUESTION #5872
Question 1
UHT processing of milk typically involves heating at:
  • \(72^{\circ}\text{C}\) for \(15\) seconds
  • \(85^{\circ}\text{C}\) for \(30\) minutes
  • \(135\text{–}150^{\circ}\text{C}\) for \(2\text{–}5\) seconds✔️
  • \(121^{\circ}\text{C}\) for \(15\) minutes
Correct Answer Explanation
UHT processing uses temperatures of \(135\text{–}150^{\circ}\text{C}\) for \(2\text{–}5\) seconds. This achieves commercial sterility while minimizing heat damage to nutrients and flavor compared to in-bottle sterilization.