Great Grandfather Rare Tawny is sourced from stage six of the ‘Grandfather Solera’ and individual batches of maturing Grandfather that are identified as having exceptional quality. These components are further aged before being blended and introduced into the ‘Great Grandfather Solera’. With a minimum average blended age of 30 years, Penfolds Great Grandfather Rare Tawny delivers a beguiling mix of age, structure, strength and complexity with each and every sip.Barossa Valley, South Australia. For the first 20 years components are matured in the Grandfather Solera. Further maturation occurs in old oak hogsheads before being blended and introduced into the three stage ‘Great Grandfather Solera’. Only the very best and oldest casks are used for the additional maturation of this wine. A core selection of varieties made up of Mataro (Mourvedre), Shiraz, Cabernet, and Grenache, but not limited to these varieties. The current Great Grandfather Solera contains a vintage span of 42 years with individual components covering 1960 to 2002 included. This large span of vintages ensures consistency and that the required level of age and youth for complexity and freshness is maintained. A specially selected ex-still fortifying spirit that has a distinctive aroma and flavour. The selected spirit traditionally has a strength between 78 and 85%v/v and must have the power and intensity to accompany and enhance the 30 years of age concentration and complexity without presenting as the dominant character. While spirit is the main driver of style in younger wines it becomes a less dominant contributor in wines of this age as the aged components take the forefront.