Equine Edibles Therapeutic Bran Mash Old Timer 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, the Old Timer made with white willow bark and yucca is great for all horses, both young and old. The all-natural bran mash is packaged in a stand-up, waterproof and resealable pouch. Just add water! Bran can be made with hot water (cool season) or cool water (warm season).