how long will food stay good in a freezer without power
â¢ A closed refrigerator should keep your food cool for 4 to 6 hours. â¢ A closed, full freezer should keep your food frozen for up to 48 hours, while a half full freezer should keep your food frozen for up to 24 hours. â¢ If food is warm for longer than 4 hours, throw the food out. A closed, full freezer should keep your food frozen for up to 48 hours, while a half full freezer should keep your food frozen for up to 24 hours. â¢ If food is warm for longer than 4 hours, throw the food out.