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Sustainable, organic and biodynamic viticulture



May 14 @ 5pm BST | 9am PDT


Porto Protocol youtube channel (click here)


Round Table


This Climate Talk will bring together wine makers across various wine regions in the world, each representing different approaches to viticulture. During the session they will debate the impact, differences and similarities each viticulture method has in terms of carbon footprint.


David Guimaraens – The Fladgate Partnership . Moderator
Diana Snowden Seysses – Domain Dujac (France) | Snowden Vineyards – Organic
Stan Zervas – Silverado Farming Company (USA) – Sustainable
Fred Loimer – Loimer (Austria) – Biodynamic

Sustainable Packaging in Wine


Diana Snowden Seysses

Winemaker at Domain Dujac | France . Proprietor and Winemaker at Snowden Vineyards | USA

Diana Snowden Seysses was born and raised in the Napa Valley. She graduated from the Viticulture & Enology program at UC Davis in 2001, then worked in both California and French cellars with Robert Mondavi Winery, Mumm Napa, the Araujo Estate, Château La Fleur de Boüard, Domaine Leflaive and Ramey Wine Cellars. In 2003 Diana became enologist at Domaine Dujac in Burgundy, and consultant at Domaine de Triennes in Provence. In 2005 she became winemaker at Snowden Vineyards in St Helena, Ca and in 2016 became winemaker for Ashes & Diamonds in Oak Knoll, Ca. She splits her time between France and California bringing wisdom from each across the Atlantic.


Fred Loimer

Fred Loimer Winery

Fred Loimer started working with his father Alfred in 1988 after completing his studies at Klosterneuburg with stints in Germany’s Nahe and Walter Schug winery in California.<br /> Fred took full control of his family’s estate in 1997 and purchased the cellar of the Haindorf Castle on the outskirts of Langenlois. He then constructed a hyper-modern black cube on top of the old cellar symbolizing his aesthetic for modern elegance.<br /> Fred began practicing biodynamics in 2006 and is a founding member of Respekt, a certifying body for biodynamic viticulture in Austria.<br /> His wines are among the very best examples of Grüner Veltliner and Riesling in the Kamptal. In 2002, he was named “Winemaker of the Year” by Austria's Falstaff wine magazine.


Stan Zervas

Partner and Vice President of Viticulture at Silverado Farming Company

Always fascinated by how plants grow, Stan worked in various jobs before finding a home at Silverado Farming Company. After earning a B.A. in environmental studies at UC Santa Barbara, Stan joined the Peace Corps teaching agriculture to secondary students in Botswana, returning to the United States in 1987 to teach outdoor education for Los Angeles County Schools. He continued his education at Cal Poly San Luis Obispo and graduated with an M.S. in Agriculture and Pest Management, before spending five years working at an insectary and administering a biological pest control program for citrus and avocado growers in Ventura County. Coming to Napa in 1999, Stan worked with Kendall-Jackson and other wineries in pest management and viticulture, focusing on transitioning vineyards to a more sustainable and organic approach.<br /> Stan joined Silverado Farming Company in 2005, impressed by the farming, business, and community philosophies that form the basis of the company. He is currently Partner and Vice President of Viticulture. As Pete says, “We are just trying to change the world, one vineyard at a time.”


David Fonseca Guimaraens

Head Winemaker and Technical Director at The Fladgate Partnership

David was born on 13th October, 1965, in Oporto, Portugal. He represents the sixth generation of Guimaraens to be involved in the Port business. After completing his schooling in Portugal and England, David spent time gaining hands-on wine making experience in Australia, California and Oregon before undertaking formal education in œnology at Roseworthy Agricultural College in South Australia. After graduating he remained in Australia to gain additional experience before returning to Portugal in 1990 to join the Taylor Fladgate and Fonseca wine making teams. Since 1991 David has played a leading role in the production of the group’s wines and in the development of its wineries and vineyards. As Technical Director and head wine maker of The Fladgate Partnership he is responsible for the group’s extensive wine inventories. David also leads the team responsible for wine making in the group’s wineries and on the Taylor Fladgate, Fonseca and Croft estates. The research and development work carried out under David’s leadership has resulted in new vinification technology which has radically enhanced the quality of the wines made from the production of the group’s partner grape growers. David also works closely with the group’s head of viticulture, António Magalhães, one of the Douro’s most respected viticulturists and a world authority on mountain viticulture, in managing and developing the Taylor Fladgate, Fonseca and Croft vineyard estates. Together they have created an award winning sustainable vineyard model which is set to become the standard for environmentally responsible viticulture in the Douro Valley.