Soils: The vineyards are parallel to the coastal mountain range and the soils are mainly volcanic, a mixture of red granite, andesite, basalt and rhyolite. Most of the soils are of colluvial origin and have a stony topsoil, which allows the vines to penetrate deep into the soil. The proximity of the Tinguiririca River means that the soils contain partly sandy and silty river deposits. The soils are clay-loam to sandy loam with a low organic matter content of 3%. The pH is slightly acidic (5.8-6.2). Vineyards: Los Robles, at the foot of the mountain in the town of Lo Moscoso (245m above sea level)
Vineyard details: South-facing (north in the Northern Hemisphere) vineyard with own-rooted vertical training. The Syrah clone is 300/174, and the other varieties are Massale Selection. Originally, the vineyards were furrow irrigated, so most of the vineyards have furrows running east-west. In 2000, they switched to drip irrigation, and since then, new plantings have been planted while searching for the best furrow direction for the land.
Planting year and density: 2,667 trees/ha in 1992 and 1995, 3,333 trees/ha in 1998, 4,166-5,000 trees/ha in 2000
Yield: 6 tonnes/ha, 39HL/ha. After working in the fields, José Guiliasti's eyes would get red, his skin would itch, and he would get a headache. What about the health of the workers who worked there every day? Is there any negative impact on the grape vines? Is the wine made from those grapes safe? Emiliana's organic farming began with such questions, and it was in their own vineyards in Los Robles, Colchagua. Several varieties were experimentally grown there, all of which grew well, and the wine made from all of those grapes was the 2001 Coyam vintage. Two years later, Coyam was entered in the Chilean Wine Awards and was selected as the highest award at the competition, "Best in Show." Emiliana decided to convert all of its vineyards to organic and biodynamic farming. The fact that Coyam, the first organic wine in Chile, won "Best in Show" was a shocking fact in the Chilean wine industry, and since then, Coyam has become Emiliana's flagship wine.