What’s Growing in Your Leftover Rice? The Fridge Isn’t Always Safe


Rice is a pantry staple and a versatile ingredient found in countless dishes, from stir-fries to sushi. But when it comes to leftovers, many people don’t realize that rice can pose a hidden danger if not stored or reheated properly. While refrigerating leftover rice might seem like a safe bet, improper handling can allow harmful bacteria to grow—even in the fridge. Let’s explore what could be lurking in your leftover rice, why it happens, and how to keep yourself and your family safe.


The Hidden Danger: Bacillus Cereus

One of the most common culprits behind foodborne illness from rice is a bacterium called Bacillus cereus . This microorganism produces heat-resistant spores that can survive cooking and thrive in warm, moist environments. If rice is left out at room temperature for too long or stored improperly, these spores can multiply and produce toxins that cause food poisoning.

Symptoms of Bacillus Cereus Poisoning