No. Primal Bone Broth can be safely served to your pet either cool or warm. Because our broth is made at a USDA inspected bone broth facility that also produces broth for the human market, we must follow specific USDA rules for this packaging. The packaging recommendation of warming to 165º F is a USDA packaging rule in reference to products intended for human consumption only. While we do use human-grade ingredients, our bone bone broth is labeled as a pet food supplement and is not for human food.