Some producers claim to be organic but choose not to register. Wines reviewed here have all been certified organic. Photo / Getty Images

About 5% of New Zealand’s total vineyard area is certified organic. To win the approval of the leading official certifier, BioGro, winegrowers must ditch the use of synthetic chemicals and then, over a conversion period of three years, achieve strict soil, environmental and biodiversity standards.

In Marlborough, 2.7% of
the total vineyard area is certified organic, far behind Central Otago, with 27%. Phasing out fungal sprays is far less risky in regions with a less disease-prone, drier climate. Given the two regions’ varietal focus, it’s no surprise that only 2% of this country’s sauvignon blanc, but more than 15% of its pinot noir, is certified organic.

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Fromm The Curation Marlborough Pinot Noir 2021. Photo / SuppliedFromm The Curation Marlborough Pinot Noir 2021. Photo / Supplied

Mount Edward Central Otago Gamay 2025. Photo / SuppliedMount Edward Central Otago Gamay 2025. Photo / Supplied

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