I was looking this info up for myself; thought it was worth posting here.
What to do when you've bought a whole roasted chicken, still warm, but dinner doesn't start for an hour or more? Even putting it in a low oven is going to dry it out -- and they usually don't start out all that great. Putting it in the fridge requires more oven time to warm it back up, which will also dry it out. But is it safe to leave them out?
Here's what I found on a forum thread:
Original question: Dinner is about 1.5 hours away. The chicken was warm when I purchased it.
Normally, I buy earlier in the day and just stick it in the fridge. This time, though, it seems that it would be better to try to keep it warm. I keep picturing it lingering too long in the "bacteria growth" temp zone considering it won't be in the fridge very long before I pull it out to start reheating.
Is my thinking off? If it's okay to keep it warm, what's the best temp for the oven?
Answer 1: I just leave mine on the counter until dinnertime. Then I cut it into quarters, stick it on a cookie sheet and reheat in the oven at 350 F. I've been doing this for years and we're all still kicking.
Answer 2: It will be fine. It needs to sit out for a minimum of 2+ hours before you have to worry about getting sick.
Answer 3: Actually, you have 4 hours in the "temperature danger zone" from 40° to 140°F. If your store keeps the chicken at or above 140°, you have 4 hours after it is removed from the heater before it is considered unsafe. These are the numbers I was taught at culinary school and have followed without issue since.
Reply from original poster: Thank you all very much! Dinner was delicious!
And a professional chef on another forum says:
Remember that the temperature danger zone is 40 to 140 F. When you buy a rotisserie chicken, it is being held at a higher temperature than that and they package them as such that they try to keep them warm for a decent amount of time. Then after that, once it drops to 140, it takes time for all those little buggies to grow, get married, and reproduce. The government states [the safe zone is] 4 hours to pass through the temperature danger zone. Add that to the 45-1 hour that it will take the bird to drop to 140, if left in packaging and considering the ambient room temp., and you have a considerable time before it becomes a microbe bomb. Of course, I probably wouldn't try to stretch it that long but 1-2 hours, following government safety standards, should be more than safe.
So, I tried it. I kept two rotisserie chickens in a tote bag on the counter, with a folded dishtowel below (to prevent heatsink from my granite countertop; if you have wood or laminate counters, no need for this). I also took one of those big flat insulated foil-looking bags and folded it over the top of the closed chicken packages, then clothes-pinned the top of the tote bag shut. It sat for about an hour and a half before dinner.
Result? The temperature was a bit on the lukewarm side. It would have been better with a bit of oven time, I think. Although the breast was dry, and oven time would have made this worse. Maybe oven time sealed up with some extra chicken broth.
As for intestinal problems, that was three days ago, and we're all good here!
photo credit: terren in Virginia via photopin cc