DISTURBING: Ever Noticed Those Numbers on Egg Cartons Under the ‘Best By’ Date? Here’s What They Really Mean

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For many grocery shoppers, the “best by” date is one of the first things they look for when picking up items such as milk and eggs.

But shockingly, when it comes to eggs, that “best by” date may not be the best indicator of freshness.

As Amanda Ghessie of IJReview reports, with the exception of baby formula, the “best by” marking on products is done at the discretion of the food manufacturer. In other words, the FDA does not require that egg producers mark their cartons with a “best by” date- it is up to the manufacturers to decide whether to do so.

And according to Fresh Eggs Daily, that optional “best by” date is not telling of how old the eggs may be. Instead, Fresh Eggs Daily suggests looking at another label on the carton, which is usually found below the “best by” date.

A few weeks ago I mentioned how the average grocery store egg might be 45 days old (or more) by the time you buy it. A…

Posted by Fresh Eggs Daily on Tuesday, January 19, 2016

That label includes a number, called the Julian Date, which marks the day of the year that the eggs were placed in the carton. For example, if the label contains the letter 358, then the eggs were packaged on December 25.

This means that if a shopper picked up a carton of eggs containing the Julian Date of 358 on January 20, those eggs would be at least twenty-seven days old.

egg-aisle

It is important to note that the Food Safety and Inspection Service says that, when refrigerated at forty-five degrees Fahrenheit, eggs should be good for four to five weeks beyond the Julian Date. As a result, regardless of what the “best by” label may say, the customer in the example above probably has another week or so to use the eggs before they go bad.

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