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How Long Can Cooked Chicken Sit Out?
The government cooking temperatures for chicken, and the strict two-hour rule that decides when it goes in the garbage.
Quick answer
Cooked chicken can sit out at room temperature for up to 2 hours before it must be thrown away. This is because room temperature falls inside the "danger zone," 4°C to 60°C (40°F to 140°F), where bacteria multiply fast. Whole chicken must be cooked to 82°C, chicken pieces to 74°C, and reheated chicken must be brought back up to 74°C.
The cooking temperatures for chicken
To ensure harmful bacteria like Salmonella are completely destroyed, a probe thermometer must measure the internal temperature of the meat. Under Ontario food safety laws, there are two different cooking temperatures for chicken depending on how it is prepared.
| Preparation | Required internal temperature |
|---|---|
| Whole chicken or turkey | 82°C (180°F) for at least 15 seconds |
| Chicken pieces (breasts, wings, legs) and ground poultry | 74°C (165°F) for at least 15 seconds |
| Reheating leftover cooked chicken | 74°C (165°F) |
Why whole chicken and chicken pieces are different
A whole chicken needs to reach 82°C, but chicken pieces only need to reach 74°C. And when a whole cooked chicken comes out of the fridge the next day to be reheated, the required temperature drops back down to 74°C, too.
That is because once you eat or reheat a whole chicken, you carve it into smaller portions. It breaks into pieces and does not go back together as a whole chicken. Once it is in pieces, heat can penetrate it much more easily, so the law only requires reheated poultry to reach 74°C (165°F).
How long can cooked chicken sit out?
Once chicken is cooked, the strict legal limit for sitting out at room temperature is two hours. Room temperature falls inside the Temperature Danger Zone, between 4°C and 60°C (40°F and 140°F), where bacteria wake up and multiply extremely fast.
Two hours is the maximum allowed because that is too short a window for bacteria to grow to dangerous levels. Past that point, cooked chicken is no longer safe to eat and has to go in the garbage. Reheating it will not fix the problem, since bacteria may have already left behind toxins that heat cannot destroy.
"The two-hour clock does not pause because the chicken looks fine. Bacteria do not announce themselves, and by the time chicken smells off, it has been unsafe for a while."
Samira AliPublic Health Inspector, 10+ years across Canada and the U.S.
Case scenarios: what would you do?
Two real-life situations show how the two-hour rule plays out. Tap each one to see the safe answer.
The massive park barbecue
You are hosting a summer barbecue in a local park for over 500 people, with hundreds of cooked chicken breasts ready to serve. Should you put all the chicken out on the picnic tables at once?
No.
If all the chicken goes out at once, it sits in the danger zone while people wait in line, and it will likely pass the two-hour limit. Use the small-batches method instead: take only small portions out to the serving table at a time, and keep the rest safely hot, above 60°C, on the grill or in warming trays. Rotating small batches keeps every portion inside the two-hour window.
The video game distraction
You cook a chicken breast for Saturday lunch, eat half, then get pulled into an online game with friends. You leave the rest sitting on a plate on the counter. Three hours later, you are hungry again. Can you microwave it and finish eating?
No.
That chicken has been sitting in the danger zone for three hours, past the two-hour limit. Bacteria double roughly every 10 to 20 minutes at room temperature, so by hour three it is no longer safe. It has to be thrown out, not reheated.
The short version
- Whole chicken: cook to 82°C (180°F) for 15+ seconds.
- Chicken pieces and ground poultry: cook to 74°C (165°F) for 15+ seconds.
- Reheated chicken, even from a whole bird, needs to be brought back up to 74°C because it is now in pieces.
- Cooked chicken can sit out at room temperature for up to 2 hours.
- Past 2 hours, throw it out. Reheating does not make it safe again.
- Serving a crowd? Use small batches and keep the rest above 60°C, not one big tray sitting out.
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Food safety quiz: cooking temperatures
Test what you just read. Tap a question to reveal the answer.
What is the minimum internal cooking temperature for a whole chicken?
82°C (180°F). Whole poultry must reach 82°C for at least 15 seconds.
What is the minimum internal cooking temperature for chicken pieces, like wings or breasts?
74°C (165°F). Chicken pieces and ground poultry only need to reach 74°C for at least 15 seconds.
When you reheat leftover cooked chicken, what minimum internal temperature must it reach?
74°C (165°F). Because the chicken is now in pieces, it only needs to be reheated to 74°C, even if it came from a whole bird.
What is the maximum time cooked chicken can sit out at room temperature?
2 hours. Potentially hazardous food can never stay in the danger zone for more than two hours.
Frequently asked questions
Can I leave cooked chicken out overnight?
No. Overnight is far past the two-hour limit. Chicken left out overnight has to be thrown away, even if it still looks and smells fine.
Does the two-hour rule change on a hot day?
Yes, food safety guidance shortens the window to about one hour once the temperature climbs above roughly 32°C (90°F), since bacteria grow even faster in the heat.
Is chicken still safe to reheat after sitting out too long?
No. Heat kills the bacteria itself, but some bacteria leave behind toxins that survive reheating. Once chicken passes the two-hour mark, it is not safe, cooked or not.
Why does a whole chicken need a higher cooking temperature than chicken pieces?
Heat penetrates smaller pieces more easily. A whole bird needs 82°C to make sure the thickest part is fully cooked, while pieces and reheated meat only need to reach 74°C.
Want to see how the danger zone applies to other foods? Read how long mayonnaise can sit out or start at the full food sit-out guide. If you are in British Columbia, this same two-hour rule is covered in the FOODSAFE Level 1 course. Everywhere else in Canada, this is exactly what you learn getting your food handlers certificate.