Parboiling is a special process that seals the nutrients into each grain of rice, giving them a golden color and making each grain separate when cooked. Parboiled rice is preferred by many because it always cooks firm and never sticks together. Parboiled rice is ideal for preparing soups, pilaf-style rice dishes, casseroles and when cooking for large groups of people. Parboiled rice reheats perfectly on top of the stove or in the microwave.