Boiling water with the GoSun Sport is a breeze with the GoSun Brew accessory. Just heating water for rice or other staple grains? Just add your dried food to the tray and insert it into the stove to reduce the chance to spilling water. With the tray cracked open a couple inches, add in your water, then close.
Keep in mind the Sport and Go will not rapidly boil water like a standard stovetop. Instead, it will bring water to a gradual boil (approx. 35 minutes of full sunlight for 2 cups of coffee). The GoSun technology cooks food more rapidly than it boils water due to the comparatively high density of liquids over food.