MillionsĀ of cooks are endangering their health by cooking their rice incorrectly, scientists believe. Putting more water in the pan or even steeping it overnight is the best way to flush out traces of the poison arsenic, they found. The chemical contaminates rice as a result of industrial toxins and pesticides which can remain in the soil for decades. Experts have long debated what level of arsenic is safe, with new limits set by the EU in 2016. Chronic exposure to the toxin