If time permits, rinse rice prior to using. Run water through them until it comes out clean.
Place rice in large 4 qt (or bigger) pot. Combine rice and water and bring to a boil. Reduce heat to low and simmer for one hour, or more. Keep pot covered, but with lid tilted so that steam can escape. This prevents the congee from boiling over.
Stir congee every 10-15 minutes to prevent sticking, as well as aid in the breakdown of the rice.