In 2006, Don Julio, with his family, planted their final agave field. In honor of his devotion and craftsmanship, this agave harvest was carefully distilled, barreled, and set aside for a special use. To preserve this tequila and the exquisite agave pias behind it, they implemented a Solera aging system.

The Solera aging method combines and matures tequilas of different characteristics finished in unique casks, allowing the final agave harvest to remain at the heart of this rare Extra Aejo Tequila. The Ultima Reserva has been rested in oak, previously used to age bourbon, and finished in Madeira wine-seasoned casks.