Nothing beats a hot meal when you're stuck in the elements for an unexpected evening or have spent a long day on the trail. Use these heaters to quickly and effectively heat your MREs above 100 degrees in as little as 10 minutes, frozen MREs may require two heater pouches. Simply add water to the sealed pouch, in 10-15 minutes you'll be ready to enjoy a hot meal, use in a well-ventilated area on a heat-safe surface.