The most favoured global variety is Cabernet Sauvignon, the result of hundreds of years of promotion of the French Bordeaux reds which are made from this variety.
Bordeaux wines are not labelled with the composition of the variety or varieties used to make the wine and it was only later in the new world expansion of vineyards that countries like Australia, Chile, and the U.S., promoted the principal variety Cabernet Sauvignon to allude to the wines having favourable French characteristics.
The Cabernets of the Barossa Valley are different as the location means the ripening season is warmer than that of Bordeaux and most other districts where Cabernet is grown.
Thus expect a fuller riper taste as what Barossa Cabernet demonstrates is that each variety can be grown across a wide ripening spectrum.
Very great Barossa Cabernets have been made from the 1950s, Orlando Cabernets for example, and this is now recognised by alert drinkers.
This Langdorf Kaldukee will come as a revelation as where the early Lakes Folly Cabernets from the warm location of the Hunter Valley.