A hard boiled egg can be kept safely at room temperature for approximately two hours. Refrigerate any hard boiled eggs that will not be eaten immediately; doing so will prevent spoilage and potential food-borne illness.
The unrefrigerated shelf life of cheese depends on its moisture content. Harder cheeses, such as Parmesan or Romano, have less moisture than soft cheeses like brie or ricotta. Soft, moist cheeses should not be left out for more than two hours. Hard grating cheeses can last longer.
Yogurt remains safe to eat unrefrigerated for 4 to 6 hours. The processes used to create this dairy product increase the acidity of milk which also helps to prevent spoilage.
Yogurt is safe to eat after being unrefrigerated for 24 hours or less. The most common way in which unrefrigerated yogurt goes bad before its "best before" date is the formation of mold on the surface.
The amount of time that cream cheese can be unrefrigerated depends on the room temperature. If the temperature is between 45 and 90 degrees Fahrenheit, it should be discarded after two hours out of the refrigerator. If above 90 degrees Fahrenheit, it should be discarded after one hour.
Cooked beef should be refrigerated within two hours to maintain its safety. If the air temperature is above 90 degrees Fahrenheit, cooked meat should be refrigerated within one hour.
Take-out pizza from locations like Pizza Hut and Dominoes can be left out unrefrigerated for up to 24 hours. Pizza tends to become dry and hard when it sits at room temperature for too long.
Orange juice should be safe to drink for up to four hours without refrigeration. After four hours without refrigeration, it is best to discard the juice.
According to the USDA, discard raw meat if it spends more than two hours above 40 degrees Fahrenheit. Even short exposures to room temperature can cause bacterial growth, so refrigerate meat promptly.
To make hard-boiled eggs, put eggs in a single layer in a large, cold pan and cover with cold water that reaches 1 inch above the eggs. Bring the water to a boil. Remove the pan from heat, cover and let the eggs sit for 12 minutes.