Last night I thought I would be efficient and start cooking the dinner that I plan to eat tonight – lamb bourgignon. I simmered the sauteed lamb pieces slowly in a stew of red wine (a Burgundy of course!) tomato paste and shallots for over an hour. All that would remain to finish the dish would be to add the mushrooms and cook a bit longer, which I would do tonight. The hot stew needed to cool for a while before going into the fridge, and since it was already 11 PM, I put it out on the windowsill to speed up the cooling. You can see where this is going… I meant to put it in the fridge after half an hour, but forgot. I remembered in a panic at 4 AM.
So essentially the lamb spent 5 hours outside. The temperature last night was 13 degrees C (55 degrees F), relatively cool, but not fridge cold.
What should I do? I would hate to throw out this lovely dish, but am of course worried about food poisoning. In addition to being in a relatively cool environment, I am also considering that between the onions, the red wine, and the tomato, the food itself would be relatively acidic and less attractive to most bacteria.
What do you all recommend?
(posting this to IMHO as I am looking for opinions on food safety rather than a discussion of cuisine)