Treasury Wine Estates (TWE), a Australia-based winemaker and distributor, has received a sustainable certificate for all its company-owned and leased vineyards in California from California Sustainable Winegrowing Alliance (CSWA) in North Coast region and Sustainability in Practice (SIP) programme in Central Coast region.

All of the company’s vineyards in Australia are also certified as sustainable by the Entwine programme and in New Zealand by the Sustainable Winegrowing New Zealand programme.

These certification programmes require the wineries to pass through eligibility pre-requisites, conduct assessments of vineyard operations and create and implement annual action plans to show improvement.

Some of the sustainable practices followed by the TWE include energy conservation, sustainable agriculture, water conservation, wildlife protection, natural resource protection and social equity.

As part of its energy conservation efforts, the company installed solar panels across all its sites, installed high-efficiency lights at all its facilities and upgraded refrigeration equipment at its Asti site in Cloverdale, California.

To conserve the water, all the TWE vineyards are irrigated through drip irrigation systems and are installed with temperature-controlled frost fans for frost protection.

The vineyards soil and water are also tested regularly to maintain health and quality and also undergoes vine nutrition testing annually for precise management of the vineyard.

TWE’s portfolio of brands include Beringer Vineyards, Castello di Gabbiano, Chateau St Jean, Cellar No 8, Colores del Sol, Etude, Lindeman’s, Matua Valley, Meridian Vineyards, Penfolds, Rosemount Estate, Souverain, Stags’ Leap Winery, St Clement and Wolf Blass.