Final answer:
Perishable foods must be cooled from 60 to 4 degrees within 2 hours to ensure food safety.
Step-by-step explanation:
In order to ensure food safety, perishable foods must be cooled from 60 degrees to 4 degrees within 2 hours.
If perishable foods are left at a temperature between 4 and 60 degrees Celsius (40 and 140 degrees Fahrenheit) for more than two hours, they may become dangerous to eat due to rapid bacterial growth.
Keeping the temperature of the refrigerator at 4 degrees Celsius (40 degrees Fahrenheit) or below helps to inhibit bacterial growth in refrigerated foods.