I have 10 11 MRE's all from one case, I threw the box away and stashed these in my packs in the garage. I would say average temp stored at about 70 deg F. These were manufactured in 2002 based on the menu. One was opened for inventory, but not used and placed back in original pouch. If this is of any trade value to anyone, let me know what you would like to swap. menu items: 13, 14, 15, 16, 17, 19, 20, 22, 23, 24, and now number 21.