The moisture it brings, and morning mists it causes, are favorable to the development of Botrytis cinerea on grapes, a fungus that contributes to the high quality and renown of Sauternes wines.
Ciron |
The town and its vineyards are separated from the area of Sauternes to the south by the Ciron river, whose cooling effect is of key importance in encouraging the annual action of the Botrytis fungus on the Sémillon grapes.