Will banana bread spoil if it gets too warm in car for five hours?

Yes, banana bread can spoil if left in a warm car for five hours, especially if temperatures are high. The warmth can accelerate the growth of bacteria and mold, compromising its safety and quality. It's best to store banana bread in a cool, dry place or in an insulated container if you need to keep it in the car for an extended period. If you notice any signs of spoilage, such as an off smell or mold, it's best to discard it.