FOOD MICROBIOLOGY
FOODBORNE ILLNESS AND FOOD SAFETY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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140 degrees
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135 degrees
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160 degrees
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180 degrees
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Detailed explanation-1: -The World Health Organization (WHO) notes that bacteria are rapidly killed at temperatures above 149°F (65°C).
Detailed explanation-2: -coli 0157:H7 bacteria–can be killed at 140 degrees, so long as the entire food reaches that temperature and the temperature is held for slightly more than eight minutes. The same bacteria are killed in 0.13 seconds if the temperature is 155 degrees.
Detailed explanation-3: -Microorganisms that can grow at and above 100 degrees C were discovered a decade ago, and about 20 different genera are now known. These so-called hyperthermophiles are the most ancient of all extant life; all but two genera are classified as Archaea.
Detailed explanation-4: -A 30-degree wash on its own will not kill bacteria, as the water won’t be hot enough. To kill bacteria in the washing machine, you either need a water temperature of 60 degrees Celsius or above, and/or a laundry sanitiser product that’s designed to kill germs.