Why These Codes Matter
Knowing how to read the Julian date and plant code helps you make better choices when buying eggs.
- Eggs typically stay freshest for 4–5 weeks after packaging.
- The USDA allows eggs to be sold up to 30 days after they’re packed.
- This means eggs can be several weeks old—even if the carton is within its sell-by date.
Tip: Look for cartons with the highest Julian number. The closer that number is to today’s date, the fresher the eggs.
What Happens as Eggs Age?
Older eggs don’t necessarily become unsafe right away, but their quality declines over time:
- Yolks become fragile and whites turn runnier.
- Flavor and texture are affected.
- Improperly stored eggs can pose a higher risk of foodborne illness.
For recipes that depend on structure and taste—like omelets, poached eggs, or baked goods—fresh is always best.
How to Store Eggs Properly
To get the most out of your eggs:
- Keep them in their original carton to protect from strong food odors.
- Store in the coldest part of the fridge, not the door.
- Use within 3–5 weeks of purchase for best results.
How to Tell If an Egg Has Gone Bad
If you’re unsure about your eggs, try these simple tests:
- Float test: Place the egg in a bowl of water.
- Fresh eggs sink and lie flat.
- Older eggs stand upright.
- Bad eggs float to the top.
- Crack test: Break the egg into a bowl.
- Fresh eggs have firm yolks and thick whites.
- Older eggs will be runnier.
- If it smells off—discard it immediately.
Tips for Buying the Freshest Eggs
According to the Egg Safety Center:
- Always buy refrigerated eggs.
- Check the carton for cracks or dirt.
- Look for the USDA Grade shield, which indicates high standards.
- Only buy what you need to avoid waste.
What to Do with Eggs That Are About to Expire
Got eggs nearing their expiration date? Try these tasty ideas:
- Quiche – Great for brunch and leftovers.
- Shakshuka – Eggs poached in tomato sauce.
- Homemade pasta – A rich, egg-based dough.
- Breakfast burritos – Easy to prep and freeze.
- Pound cake – Perfect for dessert.
- Crème brûlée – A creamy, caramelized treat.
- French toast – Ideal for slightly older eggs.
- Soufflé – Light and impressive.
- Egg muffins – Great for meal prep.
The Bottom Line
Next time you’re shopping, check the Julian date and plant code to make sure you’re getting the freshest eggs possible. Small details like these can make a big difference in taste, safety, and cooking success.
Did you know what those numbers meant before? Share this helpful tip with friends and family—and help everyone “crack the code” on egg freshness!