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PTECH Microbiology QUESTION #3286
Question 1
'Dry Heat' sterilization in a Hot Air Oven typically requires what temperature and time?
  • $121^\circ\text{C}$ for $15$ min
  • $160^\circ\text{C}$ for $2$ hours✔️
  • $100^\circ\text{C}$ for $30$ min
  • $72^\circ\text{C}$ for $15$ sec
Correct Answer Explanation
Dry heat is less efficient than moist heat and requires higher temperatures for longer periods.