In the mid-90's Mathieu Coste went to South America to work on a scientific study in the rainforests of French-Gyuana. In charge was the french botanist and biologist Francis Hallé, and the expereince was eye-opening for Mathieu's way of thinking about plants and plant life.
As a young man Mathieu studied agronomy, and later biology in Tours. One of his firsts jobs was at the Coop of Pouilly-sur-Loire, where Mathieu was in charge of the vinification. Alot of people sold grapes to the Coop, and one of them was vignerons Alain Paulat, who only sold parts of his harvest.