We all understand that the San Gimignano area is very well suited for winegrowing. But why?
For ages marine deposits that included yellow sand and tuff had been piling up on these lands and, over the years, layers of sand and clay had been formed. This, together with the absence of heavy stones, has resulted in a soil that allows good penetration of vine roots and good drainage, especially thanks to the tuff.
All these factors have led to the peculiar, savory flavor that makes Vernaccia di San Gimignano a special wine.