Spanish term (literally "education" = expansion) for a wine that matured in oak barrels and bottles for a certain time before it was allowed to go on sale. These wines have to be aged for at least 24 months, six months in oak barrels and the rest in the bottle. Renowned growers are often guided by the higher maturation times of Rioja respectively. Ribera del Duero, In the fields of Penedès or Toro many crianzas are aged in oak barrels for at least 12 months; Wines with "only" 6 months of aging are considered Roble or Semi-Crianza, although they meet the local Crianza criteria. There are even higher ripening times in the quality levels Reserva and Gran Reserva. "Sin Crianza" (sin = without) is a mostly young wine that has not been aged in the barrel. See also under Spain in the section on wine laws.