For decades the Fronti family has specialized in vineyard development and management for famous Tuscan wineries. The family also owned small vineyard plots in the Chianti Classico area, mostly in Radda with some in Gaiole.

It was natural that the younger generation would start to make wine from the family's vineyards. Their first wine was the 2009 Chianti Classico, of which less than 250 cases were made with fruit from the Istine vineyard.

The vineyards are fragmented, in different zones with distinct characteristics. From the 2012 vintage, the family began a project of separate vinification of Sangiovese depending on the vineyard of origin. Now they have three different 'crus' of Chianti Classico coming from three distinct vineyard sites: the Istine Vineyard - between Radda and Castellina, the Casanova Vineyard - near Radda, and the Cavarchione Vineyard - in Gaiole.

Always working naturally, Istine has been certified organic since 2016. Their goal is to retain respect for tradition while trying to bring out as much as possible of what nature has to offer in this unique region of Chianti Classico.