Wise Company' ready-made meals are packed in airtight NITROGEN PACKED pouches, and then encased in durable square plastic containers. The unique packaging process removes the majority of the residual oxygen through a vacuum oxygen removal and nitrogen flushing practice. Wise Company ready-made entrees and breakfasts carry up to a shelf life of 25 years, with absolutely no rotation needed. That's 25 years without the stress of wondering if your family will have enough good, usable food when emergency strikes. Because the entrees won't need to be rotated every few years like other food storage products, buying Wise Company Emergency Entrees will save you thousands of dollars long-term as the cost of food keeps going up.