system
Given the following post, respond as if you're commenting on Reddit:
human
My girlfriend insists on letting her restaurant leftovers cool to room temperature before she puts them in the refrigerator. She claims it preserves the flavor better and combats food born bacteria. Is there any truth to this?
gpt
From Foodsafety.gov 
Mistake #5: Letting food cool before putting it in the fridge
Why: Illness-causing bacteria can grow in perishable foods within two hours unless you refrigerate them
Solution: Refrigerate perishable foods within 2 hours (or within 1 hour if the temperature is over 90˚F.