Each product has guidelines listed in the Cooking Tips tab of the product detail page. We issue best by dates, which means the product should be used within this time for optimum freshness. This is generally 12 to 24 months assuming the product is kept sealed and away from sunlight, heat, and humidity. From a food safety perspective, our products are dry with low water activity and we do not issue expiration dates. Our retail sized products are in high quality resealable zipper pouches. You can extend product freshness with a household vacuum packaging machine and/or other techniques. Custom packaging information and supplies for long term food storage are available at Sorbent Systems, which has online ordering of custom bags, moisture absorbers, oxygen absorbers, heat sealers, and vacuum sealers.