The evaporator is totally heated by the power of the sun; it can reach over 110 degrees inside! The heat, and solar fans which break surface tension slowly evaporate water – a process which can take upwards of 10 weeks depending on the weather (hot and dry is optimal). As the seawater evaporates, the salt is left behind, slowly turning from clear to opaque to blotchy then solid, and forming piles of crumbly crystals. When a crust forms on top, it’s ready to harvest as finishing salt.
See it on Instagram