On the remote coast of Anglesey, Halen Môn sea salt factory produces fine fleur de sel for use in Walker's crisps and export to over 20 countries around the world.
Fleur de sel is widely considered to be salt in its most supreme form. I joined a group of salt farmers on the morbidly hot shores of Aigues-Mortes to see how these precious crystals are collected.
The isolated coastal village of Cabo Raso is home to Sal de Aquí, Argentina’s only salt production business. “I’d go surfing here as there are good waves and because it's so remote, we used to stay a few nights. That’s how we found salt,” explains co...