Leftover Rice Can Be Risky — Here’s Why

Many of us store leftover rice without much thought, but it can pose a serious health risk if not handled properly. Cooked rice can harbor Bacillus cereus, a bacteria that survives cooking and produces toxins that cause food poisoning.

The Danger
If rice is left out too long before refrigeration, bacteria multiply quickly. The toxins they produce aren’t destroyed by reheating — even in the microwave — making the rice unsafe to eat. Symptoms like nausea, vomiting, and diarrhea can appear within hours.

How to Stay Safe:

Cool Quickly: Don’t let rice sit out for more than 1 hour. Spread it in a shallow container to help it cool fast.

Store Smart: Use airtight containers and place rice in the coldest part of the fridge — not near the door.

Eat Soon: Consume leftovers within 1–2 days. After that, toss it out.

Reheat Once: Only heat what you plan to eat, and make sure it reaches at least 165°F (74°C).

Don’t Trust Looks: Spoiled rice might still look and smell fine. Never rely solely on your senses.

While refrigeration slows bacterial growth, it doesn’t stop it completely. Proper handling from the start is key to avoiding hidden health risks associated with leftover rice.