All the same features and benefits of original Aqua Literz now with a guaranteed 10-year Shelf Life. After passing all rigorous Title 21 plus 50 State tests and independent laboratory tests, the 10-year Shelf Life Aqua Literz is the one emergency drinking water solution to be backed by actual proven testing standards on 10-year old water. 10-year Aqua Literz 1L. (12-pack) emergency drinking water boasts a 10-year shelf life without the addition of additives or preservatives. All water is received from a municipal water source and undergoes a UHT pasteurizing process before being packaged into a sterile, hermetically sealed, 7-layer carton.