The Crastatone festival at Piancastagnaio is the oldest chestnut event on Monte Amiata and among the oldest ever. It takes place from October 31 to November 1, celebrating the end of the chestnut harvest and the beginning of winter.
The first Crastatone festival started from the idea of a group of friends to celebrate the precious chestnut, an important resource for the inhabitants of Monte Amiata. Crastata is the word which is given to the festival, meaning "hot roast" in the local dialect. Within the walls of the mighty fortress of Rocca Aldobrandesca, the four quarters of Piancastagnaio, Borgo, Castello, Coro and Voltaia, host stands with typical products made from chestnuts. New wine, with its classic scent, will be brought from the cellars, and the first pressing of olive oil becomes a time of celebration for everyone.