Robert Diletti

The Path

At Castle Rock Estate in Porongurup, Australia, the work has been shaped by family continuity as much as by vineyard practice. Robert Diletti first learned the site by helping at the family property, watching the initial planting as a child, then coming back as a teenager to work the rows and read the rhythms of the vineyard from the ground up. After that early grounding, 15 years spent managing other vineyards broadened the perspective he would bring back to the estate that formed him. Formal study at Charles Sturt University gave Robert Diletti a framework to match the practical education he had already begun at Castle Rock Estate. The combination matters in vineyard work: technical training on one side, direct seasonal experience on the other. His return as owner and winemaker brought those two strands together at the same property, with accumulated skill and long familiarity with the site’s character.

The Work Today

As winemaker at Castle Rock Estate in Porongurup, Australia, Robert Diletti works within an estate long known for Riesling, with award-winning Riesling and Pinot Noir among its wines. The method here is vineyard-led. The cellar follows the fruit rather than trying to overtake it, and the point of departure is always the season and the raw material it has produced. “The wine quality is really determined in the vineyard.” That position is stated plainly, and the practice reads the same way: “I just try to make the wine that portrays the fruit quality.” It is an approach that values precision over intervention, leaving room for the vineyard to carry the wine’s identity. Even the line, “We’re human, neither magicians nor gods,” sets the terms clearly: winemaking is work of judgment and restraint, not a search for grand effects.

Signature

Robert's signature wines include Castle Rock Estate A & W Pinot Noir 2021 and Diletti Chardonnay. Together, they sit within a style that favors clarity and control, with the same measured attention that defines his work at Castle Rock Estate.

In Their Words “I just try to make the wine that portrays the fruit quality.” “The wine quality is really determined in the vineyard.”

Acclaim

Robert Diletti has received Australian Wine Companion Awards — Winemaker of the Year (2015). Robert's honors include Winemaker of the Year (2015) and James Halliday 5 Star rating. Those recognitions align with a career built on consistency, patience, and a long working knowledge of one place.