Oscar Martinez is the third generation of well respected family of winemakers in Rioja. Altanza has 120 Has planted with Tempranillo around Fuenmayor, in the center of Rioja Alta.
Tempranillo is the only varietal planted in the Estate. Yields are low, green pruning and careful selection with no more than 8-10 bunches left in every plant combine to produce an average yield of only 3 lbs per plant, well below the the 6500 kg/Ha limit in Rioja. All grapes are handpicked in small cases and quickly taken to the winery.
Only native yeasts are used. Malolactic is done in large Allier oak vats, partiallyin oak for the wines up to Crianza and completely for the Reservas and Gran Reservas. Aging takes place in new or semi-new French (85%), American (10%) and Russian (5%) oak casks. The large Allier vats are also used to store the wine prior to bottling. The wine is only slightly filtered before being bottled, except the Lealtanza 2001 that sees no filtration.