Also found in: Dictionary, Acronyms, Wikipedia. (OPerations SECurity) Determining what information is publicly available in the normal course of operations that can be used by a competitor or enemy to its advantage. OPSEC is a common military practice that is also applied to civilian projects such as the development of new products and technologies. The Official Definition.
What a short duration is, and how it exactly impacts MRE shelf life, is anyoneâs guess. Chilling MREs in the fridge undoubtedly extends the shelf life of MREs, however it is not specified by how much. Some sites selling MREs claim they last as long as 130 months (almost 11 years) at 60 F (15 C) .
Based on these tests, a significant number of changes were made to MREs starting with the 1988 MREs (MRE XVIII). 9 of the 12 entrees were replaced with new ones and the entree size was changed from 5oz. to 8oz. Commercial candies were added to 4 menus, hot sauce was added to 4 menus, and cold beverage bases were added to all 12 menus.