These Emergency Drinking Water rations are the gold standard of water rations. Each individual serving of filtered fresh water is bagged in a specially designed polymer-foil sachet. To consume just tear open at the mark and sip straight from the bag. The high level filtering and outer protection is certified to keep the contents fresh for a minimum of five years in even the harshest environments. Get the best, you or your family's lives could depend on it! Filtered and packaged in America at FDA certified facilities.