In 2002, he starts a delivery job and is regularly in contact with businesses that milit for natural wines such as Le Baratin at Raquel and Pinuche's and Le Verre Volé at Cyril Bordarier's or Le Chapeau Melon at Olivier Camus's. That will be the opportunity to improve his knowledge of soils and vine-plants and to express his taste for fruit, thirst and pleasure wines.
In 2005, he gets an opportunity to work for eight months in Touraine, at Thierry Puzelat's who introduces him to his vinification methods and his work in the vineyards.
In 2006, Jean-Sébastien Gioan settles in Pyrénées Orientales and goes on learning his job of wine-grower with Jean Francois Nicq «The Boss» at Domaine des Foulards Rouges. « The Boss » will offer him in 2007 to vinify the grapes of a parcel of old carignans he had worked on during that year. These will be the first bottles of Pari Trouillas and Potron Minet.
In 2008, he gets a more formal wine-making training and cultivates 6 hectares of vines in the Aspres. Domaine Potron Minet is born. Since 2009, he is settled in Fourques in the Aspres and rents 10 hectares of vineyards in five distinct locations around the village.