The variety that identifies Australia is Shiraz.
Its place of origin is still uncertain though it has been grown in the warmer Mediterranean regions of France since antiquity. Vine cuttings then came to Australia and South Australia and the variety became one of the Barossa Valley heritage varieties from the 1840s.
In the Barossa the variety was transformed by the agreeable climate to reveal new tastes dimension that previously had not been noted. A middle core of intense fruit weight leaves an impression of sweetness and it is this density that makes drinking Barossa Shiraz so exciting.
While the warmth of the Barossa Valley ripens fruit every vintage making agreeable wine the vintages do of course vary being hotter or cooler than average in response to the vagaries of the prevailing weather.
The 2019 is the mid vintage of three hot, dry years.