Don't forget, peanut butter has a fairly short shelf life. If you look at the expiration date it is rarely a year out. Even sealed it has a tendency to go rancid over a fairly short period of time, certrainly not by the expiration date, but I would imaine 18-24 months. I stock a lot of pb... love it and it fits in the diet my doctor has me on. I store it in my spare fridge and keep 30-40lbs on hand. If you aren't going to cycle through it like a minature elephant though you might limit how much you store.