Among the most important market exhibitions dedicated to truffles in Italy, it takes place in San Giovanni d’Asso (municipality of Montalcino) in the rolling hills of Siena that divide Chianti from Val d’Orcia.
San Giovanni d’Asso is a castle surrounded by a small medieval village immersed in uncontaminated nature far from any industrial activity. The white truffles are all 0 km, found exclusively by the truffle hunters of the local cooperative or affiliated with the provincial association. San Giovanni d’Asso offers a festival full of proposals, from “Square Food”, gastronomic stands of local excellence where you can have lunch and dinner at 0 km, to “truffle hunting” together with the Sienese truffle hunters and their dogs. For those who want to experience experiences from another era, there is an ancient steam train which, starting from Grosseto and Siena, takes you across a railway no longer in service to the Castle of San Giovanni. It is the famous “Nature Train” to discover unusual landscapes of the Sienese countryside.
Inside the castle it is also possible to visit the white truffle museum.