On the left, a jar of preserved lemon that is just past 10 months old. On the right, a jar I put up just a few days ago. Just so you know what to expect! As I said in my Moroccan Preserved Lemon post a few days ago, they will keep for a year. By the way, notice the plastic lids on my mason jars? I find them on Amazon although I’m sure you can find them elsewhere. They are BPA free and SO HANDY!