Popcorn was created by Mother Nature to stay good for a long time. Be sure to seal up the unused portions to keep the moisture level optimal. We work extremely hard to condition the popcorn and get it to the right moisture percentage before we ship it to you. If you keep the popcorn in a sealed container in a place that has a constant temperature, it'll stay in good condition almost indefinitely. We are required to put an expiration date on our product to conform to rules in distribution but we'd really like to say, "forever!". Farmer Bob suggests that you use airtight containers. Most of our product is sold in a tub or a pouch with a zipper on top often referred to as a "ziplock". If you purchase a 50lb bag, a lot of people use zip-lock gallon bags, old milk jugs, or white 5-gallon buckets so they can divide the large amount into smaller portions. This way, they can use one and keep the others in storage. Purchase the white 5-gallon buckets and lids at Lowes because they are food safe. They will be labeled as such. Don't use orange Home Depot buckets because they are not food-safe.