Greywacke was founded in 2009 by pioneering winemaker Kevin Judd and his wife Kimberley. Kevin is English-born but grew up in Australia. He studied winemaking at Roseworthy College, and his first job was at the historic Reynella estate in South Australia. Moving to New Zealand in 1983, he worked for Selaks Wines, before becoming the founding winemaker at Cloudy Bay, where he worked 25 vintages before branching out on his own; it had always been his dream to found his own winery. Greywacke is the name of New Zealand's most abundant rock; a sandstone bedrock that composes the majority of the main alps that make up the backbone of the country and litter the alluvial soils of Marlborough's cool climate vineyards. Kevin aptly chose this name for his first vineyard at Rapaura, north-west of Blenheim. Today Greywacke are situated in the heart of the Omaka Valley, which is part of Marlborough's Southern Valley. Grapes are sourced from mature, organically farmed vineyard sites in the central Wairau Plains, and yields are kept low to enhance concentration of flavours. A minimal intervention approach is taken in the cellar with native yeasts used extensively for fermentation to assimilate a savouriness to the wines’ flavour profile, and each grape variety is vinified with the common goal of delivering concentration of flavour and balance of texture and acidity – these are the hallmarks of Greywacke wines. They focus on two grape varieties, Sauvignon Blanc and Pinto Noir; but a little Pinot Gris, Chardonnay and Riesling are also grown and complete their portfolio of multi-award winning wines. Kevin's other passion is photography. He has had two books published to great acclaim, and his signature vineyard pictures adorn the labels of the Greywacke wines, which adds to their distinct identity.