Reply To: Sodium Benzoate preservative for hard boiled eggs Home › Forums › Kashruth › Sodium Benzoate preservative for hard boiled eggs › Reply To: Sodium Benzoate preservative for hard boiled eggs January 30, 2017 7:32 pm at 7:32 pm #1212940 MenoParticipant How did you save money? Were they cheaper than raw eggs? And what’s sodium benzoate?