All Vega Sicilia's vines are dry grown and hand pruned, yielding less than two kilos each. Grapes are never picked unless they have achieved high levels of sugar concentration. Vinification usually lasts fifteen days and temperatures may reach as high as 32C. The optimum ripeness of fruit captured during harvest and high alcohol content facilitates the extraction of colour and tannins. Most of the ferments are carried out in oak vats and followed by the completion of malolactic. The finished wine is transferred directly into oak where it remains for a year, settling and clearing. Unicco Cosecha is matured up to ten years in a combination of seasoned and new, estate coopered oak casks and large capacity wooden vats.