I saw on a cooking show that you can use the absorbtion method in the fridge overnight and then just reheat. Ive never tried it. It wouldn't be convenient on camping trips as Engel space is at a premium.
PS I cook rice in the microwave. One cup rice to two cups water(bit less) and then 13 minutes in 850watt microwave. Check to see if it needs another minute. Easy peasey.

