Sa Huynh Salt

A salt field cannot be carried away, but the craft of turning seawater into salt can. In the story the elders of the salt village still tell, salt makers from Nghệ An and Thanh Hóa, far to the north, brought that craft south. The same story says the founder of salt making in Sa Huỳnh was also a man from the north.

In the south of Quảng Ngãi, seawater slips in through the Sa Huỳnh inlet. It spreads into the Nước Mặn lagoon. Back then, the edge of the lagoon was a stretch of marshy ground. The sea wind blew hard in every season, and the reeds and grasses kept swaying in it.

The man from the north found his way to this lagoon and chose to stay. He noticed a thin white film on a few pools of still water at the edge of the lagoon, glinting in the sun. As soon as his fingertip touched it, the white film broke apart into grains, and every grain was salty. Salt water was right there in the lagoon. From those few grains, he worked out how to make salt from that water.

He cleared a patch of marsh, ringed it with an earth bank, and divided the inside into plots. Curious neighbors stood watching him work. Many days later, he shared the first batch of salt with those who had watched, and everyone was glad. From then on, they made salt alongside him. Little by little, in the elders' telling, one plot joined the next until they formed a whole field.

No one can say in what year salt making began here. One clear marker does exist. By the reign of Emperor Đồng Khánh, this place was already a major source of salt for the province. Emperor Đồng Khánh belonged to the Nguyễn dynasty, Vietnam's last royal dynasty. In that same period, a set of books was compiled about the land, with maps. Tân Diêm, the name of a salt village here, appears in that work. It is listed among the salt-making villages of Quảng Ngãi. Today, Sa Huỳnh still has a neighborhood called Tân Diêm, where many salt-making families live.

On the full moon of the seventh lunar month, the salt makers make offerings to the founder of their craft, and the tray that day holds only vegetarian dishes. The next day, the tray changes to dishes of meat, and neighbors who do not make salt join in too. On both days, the salt makers themselves prepare the offering trays with great care. The ceremony takes place at the Tân Diêm founder's hall, right beside the salt field. The salt-making families pooled their money to build it. On the full moon and on the first day of every lunar month, someone brings fruit there, lights incense, and prays for a good salt season.

Sa Huỳnh salt also has an old road up into the mountains. Today, traders still carry salt westward. They pass through Chợ Cung. Then they climb on to Ba Khâm and Ba Trang. Some make the trip to sell salt a few times a year, but the traders' road ends at the foot of the Vi Ô Lắc pass. From the foot of the pass upward, the work belongs to the people who live there. They buy the salt and carry it on up to the highlands, where the Mơ Nâm people live.

The salt makers head back out to the salt field together after Tết, the Lunar New Year festival in Vietnam. The salt season usually runs until about the seventh lunar month, and when the rains come, the work stops. First, the water left in the fields is drained out completely, and only then does the repair work begin. Some clear the channels that bring in water, while others pack earth onto the banks to firm them up. They rake away the moss that clings to the fields.

The floor of each field takes the most work. The salt makers level the surface, then roll it until it is packed hard. An elderly salt maker lifts a wooden rammer and pounds the ground, blow after blow. The harder the earth is packed, the less seawater seeps down. They also let seawater lie on the floor so the sun and wind can dry it. Once it dries, the ground grows firmer still. Sa Huỳnh salt will form its grains right on that earth floor. These days, some families have spread tarpaulins or laid cement over their fields. Many others still keep the packed earth, because they say salt that forms on earth has a flavor of its own. Salt making in Sa Huỳnh was recognized as national intangible cultural heritage at the end of 2024.

From the open sea, the tide brings water into the lagoon. The salt makers guide it along the channels into holding plots. Each holding plot keeps the water like a huge basin set out under the sky. There the water lies still for many days under the sun. The water slowly shrinks, and its saltiness grows stronger.

When enough days have passed, the salt makers move the water to a plot they call ruộng phơi, the drying field. The sun takes another share, and what remains grows saltier. Then they let the water down into the lower plot just below, which they call ruộng ăn. Seasoned salt makers simply know when to move the water and when to let it down. On the ruộng ăn, the water lies in the sun for a few more days.

If rain falls in the middle of the day, the batch of salt that is drying has to start over. The salt makers say the stronger the sun, the faster the salt grains form, and the whiter and larger they grow. On days of fierce sun, the salt makers are happy, and the field is much livelier. When the sun is at its highest, the water evaporates fastest, so most of the work in the fields is packed into those hours.

The noon sun shines straight down on the ruộng ăn. The layer of water on the field is very thin now. A pale white begins to show on the floor of the field, then slowly spreads across it. The salt makers say that at this moment the salt is dropping its grains. In the elders' telling, the man from the north had found grains of salt just like these, on a pool of water at the edge of the lagoon. A salt maker steps into the field and draws a rake across the floor, and the salt gathers along its path. Then he heaps the salt into a pointed mound, right on the packed earth floor.