Grosset Wines is a prestigious boutique winery based in Auburn, Clare Valley, South Australia, founded by Jeffrey Grosset. Renowned for producing some of Australia's finest Rieslings, particularly the Polish Hill and Springvale single-vineyard wines, the winery is fully independent and family-owned. Grosset is a pioneer of screwcap closures in Australia and practices biodynamic and organic viticulture across its estate vineyards.