During the freeze-dried process, food are immediately frozen which allows the vitamins and minerals to stay packed inside of the package. The food maintains its fresh taste, and is condensed in heavy-duty packaging keeping it fresh for many years to come. Food storage isn’t just for natural disasters and man-made catastrophes. There are times when a financial crisis may hit, causing you to have to cut back on the way you usually shop for groceries. Ready Hour packages last up to 30 years unopened.