A metal rod would not be a good choice for roasting marshmallows because metal conducts heat very well, which means that the entire rod would become very hot and could potentially burn the person holding it. Additionally, metal rods can also create a metallic taste when in contact with food, which would not be appetizing when roasting marshmallows. It is generally recommended to use roasting sticks made of wood or bamboo for roasting marshmallows over a fire.
