Esbit Food Jugs are a convenient way to enjoy a hot meal or beverage in the field, at the office, or on the move. The vacuum-sealed jug preserves heat for 24 hours and the wide opening makes serving easy. Tests show that a jug filled with 208 degree F water in a 68 degree F environment will have temperature greater than 158 degrees F after 6 hours and greater than 140 degrees F after 12 hours. When you"re ready to eat your hot soup, stew, or pasta dish, the stainless steel outer lid serves as a double-walled insulated bowl. Nested in the inner screw plug is a convenient fold-away stainless steel spoon.