Oloroso, sherries are “born” when fino fails to form on sherry at the beginning of its life in the bodega or when a producer decides to fortify the wine enough such that the growth of flor is inhibited.  At Hidalgo, because they are a family-run bodega, they prefer to let nature take its course.  Once it is determined that flor is not forming on the new Palomino stocks, these barrels are classified as Oloroso and the unique aging process begins.  Without the veil of flor to protect the wine, slow, natural oxidation begins and the wine develops its nutty aromas and deep amber color.