Not only a food ration that tastes awesome, but is also nutritious. 1200, 2400 and 3600 calorie bars are approved by the U.S. Coast Guard as well as the Canadian Transport Department and have a five year experation term. All our food rations are baked under supervision and all have that great taste of apple cinnamon. Mayday food rations can be stored outside up to 149 degrees (°F) and can be eaten without any preparation.