The best way to prepare rice to reduce the arsenic level by about 30% is as follows:
Instructions
Rinse the rice well, rubbing the grains to get the excess starch off them. Rinse for 4 to 5 changes of water until the water is clear
Soak in water overnight, discard the soaking water before cooking.
Cook the rice in a large pot of boiling water, much like cooking pasta, using 5 to 6 parts of water to rice. Cook for 5 to 7 minutes, testing for doneness as you would pasta.
Drain well and rinse with hot water before serving.
Notes
This cooking method also eliminates the soggy, stuck rice in the bottom of the pot - oh happy day!