Instructions. Place the rice in a fine mesh colander and rinse under running water. Place the rice in a wide-mouthed glass jar and cover with water. Soak the rice for 14 to 18 hours. Pour the rice into your colander and rinse. Drain the rice and place it back in the jar.Cover the mouth of the jar with a light, breathable cloth and place the jar in a cool, semi-lit place. Rinse and drain the sprouts every 8 to 12 hours.Each time you rinse, sample a few sprouts for texture and flavor.oak the rice for 14 to 18 hours. Pour the rice into your colander and rinse. Drain the rice and place it back in the jar. Cover the mouth of the jar with a light, breathable cloth and place the jar in a cool, semi-lit place. Rinse and drain the sprouts every 8 to 12 hours.