Equine Edibles Therapeutic Old Timer Bran Mash is a perfect way to relieve your horses' minor aches and pains. From a hard day's work to a life time of stress and over achievement, Old Timer is made with white willow bark and yucca is great for all horses, both young and old. The all-natural horse bran mash is packaged in a stand-up, waterproof, and reseal-able pouch- just add water! This bran can be made with hot water (cool season) or cool water (warm season).