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) .
The internal cost of a 12 pack case of MREs is $86.98 (approx. $7.25 a meal) to the government, much higher than what is actually paid to vendors. That said, MREs can be purchased by civilians directly from the contractors who supply MREs to the United States Government.ach TOTM ration case is packed with a full menu of 12 assorted meals, weighs about 20 lbs., and is 0.95 cubic feet. The TOTM has a more limited shelf-life than the MRE, with a duration of only 12 to 18 months. The Unitized Group Ration (UGR) is a ration much like the MRE, but expanded to feed large groups.