The surrounding air heats up the food in your backpack to the point that biting into them damages you, even if you are resistant against the fires. I know that the backpack is technically outside but this is videogame logic, realistic logic would have the backpack burnt to a crisp but that wouldn't be fun.
The surrounding air heats up the food in your backpack to the point that biting into them damages you, even if you are resistant against the fires. I know that the backpack is technically outside but this is videogame logic, realistic logic would have the backpack burnt to a crisp but that wouldn't be fun.