After more than five centuries, esteemed Leonardo scholars such as Prof. Luca Maroni and Prof. Alessandro Vezzosi have recovered remarkable discoveries and extraordinary qualitative observations contained in a celebrated letter dated 1515 sent by Leonardo to his steward, the estate manager Zanobi Boni in Fiesole (the document was published in the volume “The life of Leonardo da Vinci” by John William Brown, published in London in 1828).
In this missive, the Master on the one hand complains of the quality of the wine received, writing: “the last four carafes were not according to my expectations and I was greatly displeased”; on the other hand, he provides precise technical guidance to his own enologist, which not only reveals all of Leonardo’s passion for wine, but above all the modernity of his insights.
From Milan to Zanobi Boni, my Estate Manager
The 9th of December, 1515
“The last four carafes of wine were not as I expected and I was very sorry. The vines of Fiesole, cultivated in a better way, should give Italy an excellent wine, like that of Ser Ottaviano. You know that I have already said that the vineyard rows should be fertilised with rubble from demolished old walls which dry out the roots and stems, thus the leaves attract all the substances useful to the perfection of the bunch. Moreover, in our days we do the worst thing: we ferment the wine in open vessels and so the essence disperses into the air and nothing remains but a liquid without flavour coloured by the skins and pulp; and then the racking is not done properly and for this reason a wine comes out that is cloudy and heavy on the stomach. So if you and others followed these reasonings we would drink an excellent wine. May the Lord accompany us and keep you well.”
Leonardo da Vinci
It is without doubt the first wine-making text with technical content still relevant today, aimed at optimising the cultivation of the grape and its transformation. From this point, Leonardo da Vinci Spa started the recovery of scientific research in a technical and cultural project to rediscover Leonardo’s wine-making method and its reuse to produce today the excellent wines that Leonardo aspired to.