The soils in Piemonte are influenced by their location within the mountain. The top of the hills are poor and essentially based on alluvial deposits. The lower part of the mountain is made up of clay-limestone soil with a variable proportion of sand, which often determines the degree of finesse in the wines. Piedmont sits at the foot of the Western Alps which encircle the best sites around the cities of Alba and Asti - made up with calcareous marl and sandstone.

Castello di Verduno is one of the most traditionalist producers in Piemonte. Franco Bianco and Gabriella Burlotto own vineyards in some of the best Crus of the Barolo and Barbaresco areas. Mario Andrion, a talented oenologist took over the cellar in 2000. The wines are fermented in open vats, aged in big Slavonian oak casks, and undergo a long maceration (up to 30 days). All their wines are incredible expressions of the different terroirs, thanks to patience and respect of the pace of each single vat, without forcing or disturbing the natural balance of wines.