FOOD PROCESSING AND PRESERVATION
DRYING AND DEHYDRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Period of time sanitizer must be in contact with the surface to work properly
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Heating in the microwave
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Either A or B
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None of the above
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Detailed explanation-1: -Contact time-or “wet time”-is how long a disinfectant needs to stay wet on a surface in order to be effective. Contact times can range from as little as 15 seconds for common hand sanitizer, to as long as 30 minutes for chlorine oxides used in laboratories.
Detailed explanation-2: -Definition. Contact Time. Sometimes called “dwell time, ‘’ this is the amount of time a disinfectant needs to sit on a surface, without being wiped away or disturbed, to effectively kill germs.
Detailed explanation-3: -Disinfect noncritical surfaces with an EPA-registered hospital disinfectant according to the label’s safety precautions and use directions. Most EPA-registered hospital disinfectants have a label contact time of 10 minutes.
Detailed explanation-4: -For bleach, objects can be immersed in the three compartment sink’s sanitizer for 7 seconds or it can be wiped down with double the immersion concentration. This is due to the reduced contact time the surface is getting with the sanitizer.