《天工开物·上篇·作咸》
在海丰和深州地区，把海水引入池内晒成的盐，凝结后扫起就可食用了，而不需再煎炼加工，这一点和池盐是一样的。
其海丰、深州引海水入池晒成者，凝结之时扫食不加人力，与解盐同。
In Haifeng and Shenzhen area, the salt formed from seawater led into ponds and sun-dried can be consumed after solidification and without further refinement like the salt from ponds. 