Equine Edibles Therapeutic Bran Mash Original Recipe is like a warm blanket on a cold winter night. It is an oatmeal for your horse! Our bran mash is made with all-natural, tried and true ingredients and packed with yummy stuff like peppermint and chamomile. Bran can be made with hot water (cool season) or cool water (warm season). Just add water! Bran can be made with hot water (cool season) or cool water (warm season).