Voerzio's highly concentrated wines are the result of the very low yields he enforces in the vineyard, leaving 8 buds per vine. If the summer is exceptional, it is left as is and yields little more than 1 bottle per vine, approximately 2 tons per acre. If the weather is rainy and cool in late August or early September, production is reduced. The Sarmassa vineyard is located just below Cerequio. Whereas Cerequio is within the commune of La Morra, Sarmassa is just over the boundary and lies within the commune of Barolo. The vineyard was planted in 1985. Being one of the older vineyards worked by Roberto Voerzio, the density is slightly looser at 4,942 vines per acre.