Māori Point: Doctors of Winegrowing

06 Jul 2021

Swapping microscopes in the neuroscience lab for microscopes in the barrel hall was not exactly a considered pathway for Dr John Harris and Dr Marilyn Duxson. In fact, the career change was “totally devoid of any planning”, says John – Co-owner and Winemaker at Māori Point in Central Otago.

Rebecca Wilson

Dr John Harris
Photo: Richard Brimer

The idea was seeded after a visit in the late 1990s to Forrest Estate in Marlborough, owned by John’s former lab student Dr John Forrest. As the couple drove home to Dunedin, the concept of a family vineyard continued swirling in their minds.

However, as busy scientists at the University of Otago, with collaborations all over the world, dreams of a vineyard were relegated to the backburner, until the arrival of an email in 2000 advertising land on the river flats near Tarras.

John and Marilyn took a punt, bought the block, then continued their day jobs. John describes it as a wonderful piece of land: ringed by the Southern Alps and carved by glaciers, Māori Point rises from the banks of the Mata-Au (Clutha River), and is named for the Māori prospectors who panned for gold there in the 1860s.

In 2002 they found the time and headspace to plant their vineyard. At first, they thought they might carry on with their science roles but quickly discovered that running two research labs and two teaching careers was not compatible with building a vineyard. In 2007 John swapped his lab coat and microscope for pruning tools and a tractor. It took Marilyn several more years to extricate herself from the university.

John says the repetitiveness of working on the land was something both had to get accustomed to, but their scientific backgrounds came to the fore when they started making their own wine in 2013. “Farming is a different mindset – based on experience and tradition and we had to get our heads around that. But in the winemaking, we had skills that were useful. I also have a very well-equipped lab for the size of our vineyard,” says John with a smile. He now uses his talents with a microscope to look at natural wild yeasts rather than embryonic muscles.

“We were over-worried about how difficult the winemaking would be, but once we started we couldn’t believe we hadn’t done it earlier.”

They count themselves lucky to have Matt Evans at their side since 2011, an experienced winemaker who is now a 50 per cent shareholder in Māori Point. John and Marilyn have taken a very hands-off approach with their winemaking – letting the environment and grapes play to their strengths.

John says in Central Otago they don’t talk about a regional terroir, but more a difference of altitude. “There were three major glacial periods, the high levels are the oldest, then the middle levels and then the young soils are at the bottom, where we are a part of the Valley Bottom Cohort.

Land at the end of the glacier, where all the rubble resided, is described as sterile media - fairly nutrient-free, lacking in trace elements, free-draining soils, which responds terrifically well to being irrigated - just perfect for Pinot Noir,” he says.

“The grapes struggle, and therefore produce beautiful intense flavours. It’s just an accident of nature... There’s nothing special we are doing, just the right grape in the right place.”

New Zealand has many wild native yeasts, says John. “It’s a mystery where they originated from, but we rely upon them. This natural fermentation style is more common amongst vineyards our size.”

Each vineyard has its own yeast population which is distinct to itself, he adds. “There’s a circular nature, having the yeasts in the fermentation tanks, then the skins go onto the compost, and the fruit flies then redistribute the natural yeasts out to the vineyard again.”

John has also been obsessed about becoming chemical-free, and has managed to do that this year. “We’ve never used insecticides, have never had to, but weeds have been a problem. We’ve finally found an under vine mowing machine that actually works, a new Berti machine. So we are incredibly happy about that turn of events.”

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