The development of Penfolds Red Winemaking Trial (RWT) reflects extraordinary progress in viticulture and winemaking. The two disciplines are increasingly intertwined, as growers and winemakers work together in search of optimum balance, ripeness and flavour. RWT draws fruit from 20 to 100 year-old vineyards arcing across the west and north-west of the Barossa Valley, mostly independently grown. The best vineyards produce fruit of voluptuous intensity, ripe tannins, and juicy flavours. The RWT Shiraz has a very seductive style with a plum/blueberry fruit profile and fine ripe tannins underpinned by savoury French oak. Since its first vintage in 1997, collectors have recognised the sheer class of RWT. Already the wine has a strong secondary market following, illustrating its collectability and cellaring potential.