Arroz e intoxicações alimentares?

O arroz (segundo o NHS) deve ser devidamente guardado e reaquecido apenas uma vez:
http://www.independent.co.uk/life-style/reheat-leftover-rice-food-poisoning-a7655816.html

Citando:
"So uncooked rice often contains spores (cells capable of reproducing quickly) of Bacillus cereus — a bacteria strand that can cause food poisoning — that can survive when rice is cooked.

And if the rice is left standing at room temperature after it's been boiled, the spores can grow into bacteria, which will ultimately multiply and may produce toxins that cause vomiting or diarrhea.

The longer cooked rice is left at room temperature, the more likely it is that the bacteria will make the rice unsafe to eat — meaning it's vital that you store your rice at the right way quickly if you're hoping to reheat it later.

So, how do you increase the chances of avoiding food poisoning all together? First off, serve rice as soon as it's been cooked, and cool any leftovers as quickly as possible. The NHS recommends within an hour, ideally. You can then keep the rice in the fridge (but for no more than one day) before reheating."

Ai o arsénico no arroz...

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."