How long can frozen food be kept in a cooler?
How long can frozen food be kept in a cooler? Make sure there is enough ice to keep food in the cooler at 40 ?F (4.4 ?C) or below. Add more ice to the cooler as it begins to melt. A full freezer will hold the temperature for approximately 48 hours (24 hours if it is half full).
What is 2 to 4 hour rule?
Food held between 5oC and 60oC for less than 2 hours can be used, sold or put back in the refrigerator to use later. Food held between 5oC and 60oC for 2-4 hours can still be used or sold, but can't be put back in the fridge. Food held between 5oC and 60oC for 4 hours or more must be thrown away.