E como minimizá-lo:
http://www.dailymail.co.uk/health/article-4203410/Expert-reveals-safest-way-cook-rice.html
O arsénico é um veneno.
Citando:
"A leading rice contamination expert tested 3 popular methods of cooking it
•Arsenic manages to get into rice as a result of toxins that were used in the past
•But an experiment found boiling it in excess water helps flush the chemical out
•Soaking rice in water overnight slashes levels of arsenic by 80%, the study found"
(...)
"He first used a ratio of two parts water to one part rice, whereby the water was absorbed or evaporated during cooking.
Increasing the ratio to five parts water halved arsenic levels and soaking it overnight cut the toxin levels the most.
It comes after the Food Standards Agency warned against overcooking potatoes and toast because of increased levels of the cancer-causing chemical acrylamide."