Tereza Okava wrote:This is something that only occurred to me hours later, since it isn't a problem in my region, but I used to live in a place where it can be.
Arsenic contamination/accumulation tends to happen with rice. Research has shown that rinsing can remove some, although cooking rice in lots of water like pasta, as mentioned upthread, removes more.
I've read the same thing, and so I've been washing and boiling in lots of water, but I'm skeptical of the efficacy of the practice. I figure I'm either washing out a whole lot of stuff and not just arsenic, or I'm just washing out a measure of starch. The arsenic is not a surface contamination, it's taken up naturally in the growing process and if I've understood correctly, it's in the cells of the rice.
Knowing what we know about processing plants, it would be wise to rinse the rice in any case. No idea what it's been dusted with in its long journey to your cupboard.