Cooked Rice Left Out Overnight: Is It Safe?
Written by Jordan Morley · Reviewed against FSA chilling & danger-zone guidance · Last updated 28 October 2026
Absolutely not — cooked rice left out overnight must be thrown away. Rice is one of the riskiest foods to leave at room temperature.
Why overnight is too long
Cooked rice can contain spores of Bacillus cereus that survive cooking. At room temperature the spores germinate, and the growing bacteria can produce a toxin, and reheating rice does not kill the bacteria (Healthline). This is why rice has the strictest handling advice of any common food: cool it within 1 hour, refrigerate, eat within 24 hours. Overnight on the counter, cooked rice is a genuine food poisoning risk ('fried rice syndrome') and must go in the bin.
You can also check the calorie content of cooked rice alongside its safety information.
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Cooked Rice: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| In the fridge | 1 day in the fridge |
| In the freezer | Yes — freezes well (best quality for 1 month) |
Common questions
Can I reheat cooked rice left out overnight until it's really hot?
No. Reheating rice does not kill Bacillus cereus bacteria, so heat cannot make rice left out overnight safe. Throw it away.
What is fried rice syndrome?
It's the common name for Bacillus cereus food poisoning — typically vomiting within 1–5 hours of eating rice that sat at room temperature. It comes on fast and is thoroughly unpleasant.
Can I refrigerate rice that has been out for 2 hours?
The NHS and FSA advice for rice is to cool and chill it within 1 hour of cooking, so rice that has been out for 2 hours is past that limit. Throw it away.
How long does rice last if it IS stored properly?
No more than 24 hours in the fridge (NHS/FSA guidance), after being cooled within 1 hour of cooking. Frozen portions keep much longer: see our freezing page for cooked rice.
Related answers
Primary source: FSA chilling & danger-zone guidance.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.