Eggs should not be left unrefrigerated. The longer they are unrefrigerated, the more quickly the quality will deteriorate. Also, if any bacteria made it into the eggs, that would give the microbes a chance to grow.
Yes and no. Obviously they'll eventually spoil but eggs are naturally pretty reislent and will usually last two or three weeks unrefridgerated (great news for backpackers!). This is due largely to natural antibactierial qualities in the shell. Temperature, the health of the chicken that laid the egg and the density and state of the shell (ie: cracks) will all effect longevity. A good rule of thumb is if it smells rotten, it is rotten (hence that "rotten egg" smell), otherwise enjoy!
Pickled eggs can last unrefrigerated for about 1-2 weeks. Factors that can affect their shelf life include temperature, exposure to air, and the acidity of the pickling solution.
They are considered safe, unrefrigerated, after no more than 2 hours. But this must depend on what the eggs are made of. A chocolate egg will be safe unrefrigerated for years.
Milk can last unrefrigerated for about 2 hours before it spoils.
They don't. If you freeze them they will expand and break
Chocolate can last unrefrigerated for about one year before it goes bad.
Best used within one week, the danger is Salmonella poisoning. If you are actually concerned about Salmonella, don't leave the eggs out for more than 2 hours.
Caramel apples can last unrefrigerated for about 1 to 2 days before they spoil.
Blueberries' shelf life varies depends on a couple factors such as how fresh they are when you buy them, how you store them in your refrigerator, and how cold your fridge is. However, generally blueberries will last about a week.
Eggs can be good for about 2 hours unrefrigerated. Factors that can affect their shelf life include temperature, humidity, and how they were handled and stored.
An unwashed, uncracked fresh egg can be used days after being laid. Providing they are kept in cool conditions eggs will last for a week or longer. Many countries still sell fresh eggs unrefrigerated. In North America and many European countries eggs must be refrigerated and graded for quality.
Eggs are a potentially hazardous food. They should not remain unrefrigerated for more than 2 hours. Less time is better.
Unrefrigerated milk typically lasts for about two hours before it spoils.