Does Reheating Rice to a High Temperature Kill the Bacteria?
Bacillus cereus spores aren’t easily destroyed by heat, so even if you reheat rice to a high temperature, you won’t necessarily kill them – and the heat can actually activate them so they’re able to cause food poisoning. The only way to avoid this problem is to cook rice thoroughly and cool it very quickly before storing it in the refrigerator – without letting it cool down to room temperature slowly. If it’s done properly, it’s safe to reheat rice no more than one time, but make sure it’s heated thoroughly.
What are the Symptoms of Rice Food Poisoning?
The bacillus cereus bacteria that cause rice food poisoning produce an enterotoxin that causes vomiting or diarrhea. If a person is unfortunate enough to ingest some of the spores, symptoms of nausea and vomiting usually appear pretty quickly – within four or five hours. There’s another form of rice food poisoning from bacillus cereus that takes longer to develop (eight to twenty hours) and mainly has symptoms of diarrhea and abdominal cramping.
Don’t Reheat Rice from a Restaurant
Bringing home rice is dangerous, especially if you don’t know how it was prepared. The rice has the opportunity to set at room temperature before it can be refrigerated, which allows the spores to germinate. If you take home leftovers from a restaurant–leave the rice behind. That includes fried rice, which is the culprit in many cases of rice food poisoning. Don’t take chances with your health by reheating restaurant rice at home.
The Most Dangerous Leftovers was originally published on blackdoctor.org
