"Any contained item that can fit inside a refrigerator, whose quality would be better if kept at
1-4°C rather than at room temperature by the time it's used/consume."
I would argue that the broccoli contains itself, or perhaps that the skin/surface of the broccoli is the container. (Though some people would argue that all vegetables in the fridge should at least be bagged, to prevent transfer of germs/grime.)