Gran Reserva is a Spanish labelling term that indicates a wine has had a minimum amount of aging prior to release. Although this can vary from region to region, for reds it is typically a minimum of five years aging prior to release, of which at least two years must be in barrel. Whites and rosés have a slightly shorter requirement. As these are legal minima, it is not uncommon to see wines released after even more aging.
For Rioja, it is 5 years, of which at least 2 years in 225 litre oak barrels and 2 years bottle aging, whereas Priorat is 2 years in barrel followed by 3 years in bottle as a minimum.
