Auf Casato Prime Donne werden Rosso und Brunello di Montalcino hergestellt. Im Weinkeller von Casato Prime Donne kann man zwischen Eichenfässern alte Fresken aus der Geschichte von Montalcino bestaunen, die den Namen des Ortes – Monte del Leccio (Steineichenberg) – verdeutlichen und die 1260 ausgetragene Schlacht von Montaperti beschreiben, wo die Bürger von Montalcino sich den Spitznamen "Beccamorti"(Totengräber) holten.
The "Tinaia del Vento" fermentation area was inaugurated with the 2009 harvest. Set in the middle of the Brunello vineyards, it is open on four sides so as to naturally oxygenate the must during fermentation—a tradition carried on since yesteryear. The "Tinaia del Vento" houses six modern, truncated-cone shaped, stainless steel vats which are open on top. The plunger travels along a rail suspended from the ceiling. This permits vinification to take place without the use of pumps; this mechanical system carries out the work that medieval monks used to perform in convent cellars. Even the yeast used in the process is traditional. The collaboration between Casato Prime Donne and Oliver Ogar from Verona has helped us choose two native strains of yeast from Montalcino. Last but not least, there is the Dyostem scanner which reveals the aromatic ripening of the Sangiovese grapes, and the sorting belt which chooses the grapes one by one.