Sa Huynh salt field uses a completely natural, silty, and sandy soil. Absolutely no artificial materials, such as cement or PE tarpaulin, help maintain the optimum temperature, create conditions for the slow crystallization of salt, and produce the characteristic rich, sweet taste of salt.

Diverse microorganisms in Sa Huynh's traditional salt fields (algae, cyanobacteria, Dunaliella salina microalgae, etc.) promote the evaporation of natural seawater, forming the ideal environment. Ideal in salt fields, helping to retain more healthy mineral content than all industrial salts on the market.

The process of producing salt on natural soil does not create waste. Closed canal system, taking advantage of the tide to bring sea water into the fields, and taking advantage of the sun and wind to crystallize the sea salt. This is the most efficient and environmentally friendly way to produce sea salt.