Rice, whether white or brown, is often a filling food that can leave you with leftovers. Whether it’s part of a meal at a favorite restaurant or a homemade dish, many of us tend to have more rice on our plates than we can finish. Leftover rice is often saved and reheated, but there are some health risks involved if it’s not stored and reheated properly.
It is safe to eat leftover rice as long as it has been properly stored. According to Jen Messer, a registered dietitian, it is important to refrigerate leftover rice promptly to avoid foodborne illnesses. She follows the acronym FATTOM, which stands for Food, Acidity, Temperature, Time, Oxygen, and Moisture. These factors influence how food, like rice, is stored and reheated safely.
Rice is particularly vulnerable to bacterial growth due to its moist environment. “Cooked rice can become a breeding ground for bacteria if left at room temperature for too long,” says Messer. Uncooked rice may also contain Bacillus cereus spores, which survive cooking and can grow if rice is stored improperly.
If cooked rice is left at room temperature for too long, Bacillus cereus bacteria can multiply and produce toxins. These toxins are heat-resistant and can cause food poisoning even after reheating the rice. Symptoms of food poisoning may include stomach pain, nausea, and diarrhea, which typically appear within hours of consuming contaminated food.
To keep leftover rice safe, it’s crucial to refrigerate it within an hour after cooking. Although some sources suggest leftover rice can last up to 6-7 days, the U.S. Department of Health & Human Services advises that rice be consumed within 3-4 days. The British Food Standards Agency recommends eating rice within 24 hours. If you’re unsure about the safety of the rice, it’s safer to discard it after 4-6 days.
To determine if rice has gone bad, check for unusual smells or changes in texture. If the rice smells sour or has a slimy, gooey texture, it’s best to throw it away. These signs could indicate harmful bacteria.
Certain groups of people, such as young children, pregnant women, and those with weakened immune systems, should be extra cautious when consuming leftover rice. “Avoid serving leftover rice that’s older than 3-4 days to these groups,” advises dietitian Shelley Rael.
If you’re unsure how long the rice has been in your fridge, it’s always safer to discard it. “When in doubt, throw it out,” says Messer.
Eating leftover rice can be safe if it’s stored and reheated properly. Be sure to refrigerate rice within an hour and check for signs of spoilage before eating. When in doubt, discard the rice to avoid potential health risks.
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