Can rice flour be stored in the refrigerator for a week to produce rice yeast toxin?

Rice flour stored in the refrigerator for a week may produce rice yeast toxin. This toxin is more likely to be produced in a humid environment. If the rice flour is moldy and sticky overnight, it is likely that rice yeast toxin has been produced.

Poisoning symptoms may occur when eating rice flour containing rice yeast toxin, including nausea, vomiting, diarrhea and so on. If the poisoning is serious, it may be life-threatening. Therefore, it is suggested that the rice noodles put in the refrigerator should be eaten as soon as possible, not for too long. If rice noodles have gone bad, it is best not to eat them, so as not to cause health problems.