Too many of us end up throwing out food that is still perfectly safe to eat. Eggs are often on the top of the list of things people thick go bad quickly. But eggs are safe to eat up to five weeks after the “sell by” date. If you’re curious about when those eggs were packed, just look at the numbers under the “sell by” date. The three-digit number in the middle tells you the day of the year that eggs were packed. For example, if the numbers in the middle were 041, that would tell you that the eggs were packed on February 10, day 41 of the year.
Health & Nutrition Letter from Tufts University