The wine production and trading house J. & P. Testuz SA is located in the municipality Treytorrens-Cully directly on Lake Geneva under the famous steep slope of the location Dézaley
in the Swiss canton Vaud
, The family has been based in Vaud for 450 years. The vineyards cover 20 hectares of its own vineyards, including a large part of the Dézaley. An additional 40 hectares are leased and from another 20 hectares in the La Côte area, grapes are purchased from contract growers. The white varieties Chardonnay, Chasselas, Pinot Gris and Riesling, as well as the red varieties Gamay, Garanoir, Pinot Noir and Syrah are processed into mostly single-variety wines. The premium wines include the white wines "L'Arbalète" (Chasselas) from Dézaley, "Roche Ronde" (Chasselas) from Saint-Saphorin, "Le Coup de l'Etrier" (Chasselas) from Epesses, as well as the red wines "Terra Mater" - in German "Mother Earth" (Pinot Noir and Gamay) from Dézaley and "Grand Croix" (Pinot Noir). Every year around 4.5 million bottles of wine are produced.