What is one of the defining characteristics of a traditional style of Oloroso Sherry?

A traditional style of Oloroso Sherry is defined by its nutty, complex palate, which is primarily the result of its aging process and the absence of flor. Unlike Fino or Manzanilla Sherries, which are aged under a layer of flor yeast, Oloroso develops oxidative flavors due to its exposure to air during aging. This process contributes to a rich array of flavors, including nuttiness and complexity, arising from the interaction of the wine with wood and oxygen over time. Such flavor notes are characteristic of the darker, richer style that Oloroso is known for, making it stand out among other Sherry types.