Growing flax requires attention at every stage, and farmers need to choose the right time for the harvest as the straws must neither be too dry nor wet. Once the flax bales are sheltered, they are checked again to determine whether they should pass immediately to the scutching phase. Experts like Terre de Lin give the first indications about the future quality of the fibers. Based in Saint-Pierre-le-Viger, the cooperative gather 600 members responsible for 15% of international flax fibers production.