All fermentations were performed using Shiraz grapes. In 2009,
grapes were collected from a single vineyard block in McLaren Vale,
South Australia. Two treatments were collected separately, one from
a low vigour patch (LV) and the second from a high vigour patch
(HV) of the block. Assessment of vigour was based on vineyard
records of vine growth and production over a number of vintages,
as well as visual assessment of the vineyard. Bunches were picked
at 23.5 ± 0.25 Brix. In 2010 grapes were picked from a single
Adelaide Hills vineyard at 23.7 ± 0.25 Brix.