Grant Burge holds great reverence for the outstanding quality of Barossa Grenache, Shiraz and Mourvedre old vines fruit. He is inspired by the way they can coalesce into a wine that's so much greater than the sum of parts. Holy Trinity is modelled on the efforts of the southern Rhone, a style which early settlers recognized would excel in the idyllic climes and terroirs of Barossa Valley. An artisinally crafted wine, from grapes hand picked off old, dry grown vines, the youngest being some fifty years of age, the oldest is well over a hundred and twenty.

Grant Burge is blessed with access to some of the nation's most precious parcels of old vines Grenache, Shiraz and Mourverdre. After crushing, the juices are fermented on skins for a week in a combination of static and open fermenters. Most of the juices are macerated on skins for up to a month after primary ferments, to improve structure and extract rich colour, flavour and tannins. Grenache is allowed to peak at a warm 30C, the Shiraz and Mourvedre at 28C. The wines are separately transferred into a mix of seasoned old 500L French oak puncheons and 2500L French oak foudres to mature for eighteen months. Holy Trinity is then treated to a period of bottle maturation before release.