Pay attention to this date from now on. It’s not an ordinary expiration date. After working for years and years in grocery stores, I see that most people just randomly buy eggs without really noticing this detail

For those of us who love the versatility of eggs—whether we’re flipping a fluffy omelet, baking a rich cake, or tossing them into a savory fried rice dish—the quality of the eggs we use makes a big difference. While buying from a local farmer’s market can provide farm-fresh options, most of us rely on the convenience of grocery store cartons. These cartons often come with labels and codes that may seem confusing at first glance—but they actually reveal key details about the eggs inside.

One of the most important codes to understand is the three-digit number often found near the expiration or best-by date. This is known as the Julian date, which indicates the exact day of the year the eggs were packed. For example, if the code says 001, that means the eggs were packed on January 1st. A code of 365 represents December 31st. Knowing this date helps you assess how fresh the eggs really are.

You might also notice another number that starts with the letter “P”—this is the plant code, which identifies the processing facility where the eggs were packed. During product recalls, such as those involving salmonella contamination, this code becomes crucial in helping consumers track down affected products and ensure safety.

In general, eggs are best used within 30 days of the packing date, as long as they’re properly refrigerated. By checking the Julian date before buying, you can make smarter decisions and ensure you’re bringing home the freshest eggs available.

Aside from codes, take a closer look at any labels on the carton. The USDA grade shield is one to note—Grade AA eggs are the highest in quality, with thick whites and well-shaped yolks, perfect for frying or poaching. Grade A eggs are also excellent and widely used for everyday recipes.

You’ll also see terms like “organic,” “free-range,” or “pastured.” These labels provide more insight into how the hens were raised and what they were fed—factors that can influence both nutritional value and flavor.

By learning how to interpret these codes and labels, you can confidently choose the best eggs for your meals. So next time you’re at the store, take a moment to read beyond the brand—your recipes will thank you.