Disclosed are aseptically packed instant rice and a method of manufacturing the same. The aseptically packed instant rice is so rich in minerals such as magnesium, sodium and potassium as to have excellent nutrition and the sensation when eaten and can be stored for a long period of time because it is cooked with mineral-enriched deep seawater which is formulated from mineral-enriched desalted water and desalted water so as to impart a condition of hardness and guarantee an excellent sweet taste, savoriness, texture, glutinosity and elasticity to the rice.
