Originally Posted by Interested Party
In April 2016, the FDA proposed a limit of 100 parts per billion (ppb) for inorganic arsenic in infant rice cereal and other foods to minimize exposure of infants to arsenic.."
100 ppb is equivalent to 0.1 PPM (part per million) so a very very low concentration. Even if the arsenic content in the rice water is higher than in the rice itself, I doubt it very much that it could be sufficient for creating any warangan effect.
For comparison, the arsenic concentration in realgar (arsenic sulphide ore, the most commonly used chemicals for warangan treatment) amounts to several percents so thousands time more than in the rice (one percent is equivalent to 10,000 PPM)....