The answer is both yes and no. If they are store-bought in the United States, yes. Commercial eggs in the U.S. are washed and processed before being sold in supermarkets. This washing removes the protective outer coating of the eggshell called the “bloom.” As a result, refrigeration is necessary.
On the other hand, farm-fresh eggs don’t necessarily need to be refrigerated, because the eggs are unwashed, retaining the natural protective coating, which helps keep out bacteria, therefore, preserving freshness.
However, farm-fresh eggs generally have a longer shelf life when refrigerated compared to eggs that are not. If you chose to keep your unrefrigerated farm-fresh eggs on the counter, they should be used within a week or so.
How to Properly Store Eggs
Store your refrigerated eggs point down.
Don’t store them on the door where temperatures fluctuate.
Once an egg is refrigerated it must remain refrigerated.
Your store-bought refrigerated eggs in the U.S. have a shelf life of about 4-5 weeks beyond the pack date.
How to Determine the Freshness of an Egg:
Fill a bowl with water and gently place the eggs into it.
If the eggs sink and lay flat on the bottom, they are fresh.
If they stand upright on the bottom they are less fresh.
If they float to the surface the egg should be discarded.
Interesting Fact: Not all countries refrigerate eggs at the retail level, here are some examples:
United Kingdom, Ireland, Australia, New Zealand, and Scandinavian countries.
TBN Ranch Chicken Keeping Resources 