Yes, it is fine to eat leftover rice for several days after it was initially cooked. Just make sure it was stored properly and wasn't kept in room temperature for a long time. “Spores are present in food. ... “It's OK to eat for several days if it's stored correctly.”

Is it safe to cook leftover rice?

It is possible to reheat rice, but people must take precautions to ensure it is safe to eat. Rice is more problematic than some other leftover foods as it may contain bacteria called Bacillus cereus, which survive some cooking processes . This bacterium is often the cause of food poisoning from reheated or cooked rice.

Is it OK to eat rice left out overnight?

If rice is left standing at room temperature, the spores can grow into bacteria. These bacteria will multiply and may produce toxins (poisons) that cause vomiting or diarrhoea. The longer cooked rice is left at room temperature, the more likely it is that the bacteria or toxins could make the rice unsafe to eat.