As part of the Rucaps European program based on the exchange of expertise, Bretagne Développement Innovation welcomed two Spanish researchers. Llanos Cuenca and Andres Boza are both specialized in mathematical modelisation. After being welcomed by Guillaume Rostoll (CEO of Terre d’Essais), they visited the organic vegetable experimental station of Pleumeur-Gautier on June 15th. The aim of the visit was to analyze the vegetable value chain and propose modelisation tools to limit farmers’ risk-taking. A new European project could come up from this initial contact.