Remove from the heat. Transfer the rice to a basket of your electric dehydrator. Spread the rice evenly, and fill as many baskets as you need. Cover, set the temperature to 160° F, and dry for 3 hours, until the outside of each grain is hard, but the inside is still moist. If you don’t have an electric dehydrator, you can dry your rice for several hours in a shallow basket set in breezy, sunny place.