The acronym MRE represents Meals All set to Eat. One of the very first packaged meals ever developed, these were designed for military functions however have actually become popular in the civilian sector as well. So, How do MRE meals work, or in fact, how are they developed? While no one knows the precise recipe, thye're designed to last for approximately five years on the shelf which is far longer than other packaged foods. When you browse MRE sites, you will note they use a large range of choices.