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At what temperature do pathogenic bacteria grow best in food?

  • A.5 to 15 degrees celsius
  • B.15 to 25 degrees celsius
  • C.20 to 45 degrees celsius
  • D.40 to 65 degrees celsius

Answer: C

Pathogenic bacteria grow fastest between about 20 and 45°C.

This is the danger zone for food, and it brackets body temperature, 37°C, which is where human pathogens are best adapted to grow. Refrigeration below 5°C slows them and cooking above 70°C kills them.

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