Not only a food ration that tastes great, but is also very nutritious. Our 3600 calorie bars are approved by the U.S. Coast Guard as well as the Canadian Transport Department and have a five year shelf life. This is a 3 day food bar serving 1200 calories for 3 days. All our food rations are baked under strict supervision and all have that great taste of apple cinnamon. These food rations can be stored outside up to 149 degrees (°F) and can be eaten without preparation.