 When they have become a yellowish-white colour, they are separated into finer strands and sorted qualitatively.Next, the higher-quality palm strands are soaked in a mixture of water and chlorine, then sulphurised, which bleaches them further and makes them flexible enough to work.The now soft leaves, called "palmito", are then woven into the basic shape of the basket using fixed stems or leaves at right angles to one another.