Due to their lengthy shelf life, hard-boiled eggs can be batch cooked without worrying about spoilage. The Bella Egg Cooker hard boils seven eggs in 12 minutes.
"Hard-boiled eggs will last about three to four days in the fridge," says Institute of Culinary Education director of culinary affairs Herve Malivert.
"After four or five days, I would toss them." Food and Drug Administration standards allow hard-boiled eggs to be used within a week following boiling.
Peel or not—that's the next question. Lead instructor of culinary arts Cyril Kabaoglu at the Institute of Culinary Education advises storing hard-boiled eggs peeled because they get tougher to peel over time.
To prevent drying, Malivert recommends storing eggs with the shells on in the fridge for more than a few days. The innovative Negg boiled egg peeler cleanly removes shells with a shake to peel hard-boiled eggs rapidly.