Experts decide the crucial moment of flax harvest by scrutinizing its fibers that must neither be too dry nor wet. Taken to the factory, the bales unroll on the scutching line. The controllers make sure to arrange a homogeneous layer that goes through various rollers that would rid the fiber of its wood and bark. The scutching inaugurates a long process resulting in golden ribbons, thin as hair, that make the reputation of the Terre de Lin cooperative. Based in Saint-Pierre-le-Viger in the Seine-Maritime department, it supplies 15% of the world's production of textile flax fibers.