A Gentle, Science-Backed Guide to Egg Carton Codes

1, while 198 means July 17 in a non-leap year. This code can help you compare cartons and use older eggs first, but it does not by itself determine whether an egg is safe to eat.

You may also see a code beginning with “P.” This identifies the processing or grading facility. Other labels, including “Sell By,” “Best By,” and “Best Before,” have different continue reading …