How long does it take for unrefrigerated meat to spoil?

It depends on the temperature of the room and the type and size of the piece of meat, but spoilage starts usually in only a few hours. If the meat has been cooked, smoked, marinated or pickled, spoilage will be slowed. Spoilage is a process, and the food remains edible even after spoilage has started, but becomes increasingly inedible as time passes.