Italy's sole organic producer of bufala (water-buffalo) milk, Tenuta Vannulo is a 10-minute drive from Paestum. It makes its mozzarella exclusively from buffalo milk, unlike most producers who combine it with cows' milk. The farm is open for tours (in English and Italian) of the production facilities, the buffalo stables and an agricultural museum. Visits culminate in that all-important tasting. You can also buy fresh mozzarella here, though demand is such that it generally runs out by early afternoon.
Tenuta Vannulo produces 408kg of unpasteurised mozzarella di bufala per day, enough for several thousand caprese salads. It also makes wonderful ice cream. You can have lunch, with advance reservations. 'The mozzarella produced here is generally considered to be the best in the region,' says Franco Coppola, owner of Inn Bufalito restaurant in Sorrento, which specialises in local produce. 'The fact that it is organically produced makes all the difference to the quality and taste.'