1, processing: sea salt is unprocessed salt obtained directly from seawater, salt hundred pools, salt wells and salt mines, while sea crystals are made by processing seawater or brine.

2, composition: the main component of sea salt is sodium chloride, which is more pure, basically does not contain other impurities. Sea crystals, on the other hand, retain a variety of trace elements in seawater, such as potassium, magnesium, calcium, zinc, iron and so on.

3, use: because of the higher purity of sea salt, it is mainly used for the use of edible salt. Sea crystal, on the other hand, because of its complex composition, is usually used in industrial manufacturing rather than food processing.