For another, the risk is great that food may spoil or get smashed out of shape before it arrives.
The ice-box was dead now, and his food spoiled.
These foods spoil quickly and need to be eaten within the first two days of flight to prevent spoilage.
Anything higher and foods will spoil too quickly (it also presents food poisoning problems, as described in several of the links below).
The power returned before any food spoiled, he said.
But there is no reason to let foods spoil.
The freezer was off; all the food would spoil.
The food will get old and spoil if it is left uneaten for too long.
You can't always tell if a food has spoiled by its smell or appearance.
Not long ago, word got around that all the food on the barge had spoiled.