Originally released in 1976, the Koonunga Hill range has established a sound reputation for quality and consistency, while availing red wine enthusiasts of the opportunity to approach the enduring Penfolds style. The inaugural 1976 vintage of Koonunga Hill Shiraz Cabernet was a legendary wine, still drinking well at Penfolds red wine recorking clinics. Reissued under the Seventy Six moniker, it has attracted a tremendous amount of critical acclaim, twice recipient of the highly prestigious Wine Press Club Trophy for Best Dry Red Wine.

A mostly Shiraz wine with a vital component of good Cabernet, assembled from harvests grown to choice Penfold vineyards, owned and operated by the most dedicated growers. Penfolds have had greater experience with Cabernet Sauvignon than any other Australian winemaker, the development of Cabernet vineyards in Australia is due in no small part to their efforts. Vines are trained and pruned throughout the growing season, allowing optimum ripening conditions for maximum flavour, fine tannin structure and balanced acidity. Fruit is treated to a temperature controlled fermentation and full malolactic, followed by fifteen months in a selection of seasoned and new American oak hogsheads.