B - bananas, boiled potatoes without skin, baked sweet potatoes without skin. T - tea without caffeine and white bread toast, unsalted plain crackers. While on this diet, don't eat or drink anything with caffeine like chocolate, cola, coffee, tea, hot chocolate or chocolate soda. Don't eat synthetic fats like olestra or Olean at any time. Cooked, plain white rice is very easy to find when you are out in the world making your rounds.
Any Chinese restaurant has it for take-out.
Small containers are very cheap. When the rice is soft, pour the extra water into a container that can be covered, and put it into the refrigerator until it cools off. Refrigerate the rice in a closed container until you need it. Drink the water and eat the rice. Rice water is easier to drink when cold.