According to the USDA, food that has been left out of the fridge for more than two hours should be thrown away. That's because between 40? F and 140? F (what the USDA calls the "Danger Zone"), bacteria grows incredibly fast and can make you sick. However, there are types of foods that don't necessarily need to be stored in the refrigerator or won't be as harmful to you if you leave them out for a while. Some foods, like bread, shouldn't even be stored in the fridge in the first place. Read ...