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John Duval Wines Plexus



My aim with Plexus is to express the wide spectrum of red fruit flavours from Shiraz, Grenache and Mourvedre, but also provide structure with a seamless balance and long finish. Traditional, low intervention winemaking techniques are employed with Plexus, allowing the wine to be approachable in its youth, but also have great cellaring potential for improvement in the bottle for at least 8-10 years.

Region: Barossa Valley

Varieties: Shiraz 52%, Grenache 26%, Mourvedre 22%

  • Shiraz was sourced from old vineyards in the Light Pass, Marananga and Krondorf regions.
  • Grenache from old bush vines, 50-60 years old, from Stockwell, Light Pass and Krondorf.
  • Mourvedre from bush vines, the oldest over 100 years from Light Pass and Krondorf.

Winemaking: Fermentation with submerged cap in both traditional old open top tanks and small stainless steel fermenters

Oak Maturation: 100% barrel matured for 16 months. Some Shiraz finished fermentation in new oak. 10% new fine grain French oak hogsheads (300 litres), with the balance matured in 3 years and older mostly French oak.

Technical Notes:
Alcohol 14.5%
pH 3.50
TA 6.5g/l


  • Colour: Deep crimson
  • Nose: Aromatic red fruits are supported by vibrant plum. Earthy spice characters combine well with a touch of savoury oak
  • Palate: Rich, round and full of concentrated, bright berry fruit. These flavours are supported by vibrant acidity and soft, ripe tannins. A touch of oak adds complexity and the finish is long and layered

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